A 30. 0 μF capacitor initially charged to 30. 0 μC is discharged through a 1. 70 kΩ resistor. How long does it take to reduce the capacitor's charge to 30. 0 μC ?

The position vector r for the point where the force is applied is r = 3.87i + 3.21j.  The magnitude of the torque produced by the force is 10.345 Nm. The direction of the torque produced by the force F with respect to the origin is given by the right-hand rule.

a) The position vector r for the point where the force is applied is:

r = 3.87i + 3.21j

b) The magnitude of the torque produced by the force F with respect to the origin is given by:

τ = r × F

|τ| = |r||F|sinθ

|τ| = |r||F|sinθ = rxFz = (3.87i + 3.21j) × (-3.24k) = 10.345k

Therefore, the magnitude of the torque produced by the force is 10.345 Nm.

c) The direction of the torque produced by the force F with respect to the origin is given by the right-hand rule. If we curl our fingers in the direction of r and then bend them towards the direction of F, then the direction our thumb points in is the direction of the torque.

Torque refers to the turning or rotational force that causes an object to rotate around an axis or pivot point. It is also known as the moment of force. Torque is a vector quantity and is defined as the product of the force applied and the lever arm or the distance between the axis of rotation and the point of application of the force.

Torque is an important concept in many areas of physics, including mechanics, electromagnetism, and quantum mechanics. It plays a crucial role in the understanding of the behavior of rotating objects, such as wheels, gears, and turbines. The magnitude of the torque determines the rate at which an object rotates, and the direction of the torque determines the direction of the rotation.

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Answer:

To make an electromagnetic motor stronger, you could increase the number of turns in the coil to increase the strength of the magnetic field. Additionally, you could increase the current flowing through the coil, increase the number of magnets interacting with the electromagnet, or use stronger magnets. In everyday life, these principles are applied in many different devices such as electric motors in appliances, generators, and even MRI machines. For example, increasing the number of turns in the coil in an electric motor can make it more powerful, allowing it to drive heavier loads or work more efficiently. Similarly, using stronger magnets can increase the motor's torque, allowing it to turn larger loads or operate at higher speeds. In essence, the strength of an electromagnetic motor is dependent on the strength of the magnetic field, which can be influenced by a variety of factors including the number of turns in the coil, the current flowing through it, and the strength of the magnets used.

Explanation:

To adjust the tension in the wire while tuning a piano, a piano tuner should choose option C: increase the amount of interference and decrease the beat frequency. A beat frequency is most likely to occur in case B: two of the same instrument playing notes at slightly different frequencies.

When tuning, the tuner aims to match the frequency of the piano wire with the tuning fork. The beat frequency is the difference in frequencies between the two. As the frequencies get closer, the beat frequency decreases, and the interference increases.

By adjusting the tension in the wire, the piano tuner can change the frequency of the piano wire, ultimately aiming to minimize the beat frequency and maximize the interference. This ensures that the piano wire is properly tuned to the desired frequency.

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The Both boxes of different mass are at rest and are acted upon by equal force, the statement that is true is "if both boxes are pushed for the same amount of time, then both boxes will have the same final momentum.

This is Because momentum is defined as the product of mass and velocity, and since the force acting on both boxes is equal, the change in velocity will be the same for both boxes, given that the time of application of force is the same. The lighter box will gain more velocity than the heavier box due to its lower mass, but this will be compensated by the fact that the heavier box will have a lower velocity due to its greater mass, resulting in both boxes having the same final momentum. The other statements are not true because kinetic energy depends on the mass and velocity of an object, and the change in momentum is not dependent on the distance each box is pushed, but rather on the force and time of application of force. In summary, if two boxes of different mass are acted upon by equal force, they will have the same final momentum if the time of application of force is the same.

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The center of mass of a thin plate with constant density δ covering a given region can be found by integrating the product of the density function and the position coordinates over the region and then dividing by the total mass. The region is bounded by the given curves or lines, and the density function is given as a constant or a function of x and/or y.

To find the center of mass, we need to calculate the following integrals:

Integrate δ * x over the region and then divide by the total mass.

Integrate δ * y over the region and then divide by the total mass.

The result of these integrals will give us the x-coordinate and y-coordinate of the center of mass, respectively. The density of the thin plate is given as a constant δ or a function of x and/or y. The center of mass will be located at the point (x, y) that satisfies the above integrals. The exact coordinates of the center of mass can be determined by solving the integrals and rounding to the nearest hundredth.

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The speed of the projectile as it leaves the barrel of the cannon is approximately 400 m/s.

Assuming there is no air resistance, the speed of the projectile as it leaves the barrel of the cannon will be equal to the velocity relative to the cannon plus the velocity of the cannon itself. This is due to the principle of conservation of momentum, which states that the total momentum of a system remains constant in the absence of external forces.

Let's denote the velocity of the projectile as v_p and the velocity of the cannon as v_c. Then, using the conservation of momentum principle, we have:

[tex]m_p v_p + m_c v_c = (m_p + m_c) v[/tex]

where [tex]m_p[/tex] and [tex]m_c[/tex] are the masses of the velocity and the cannon, respectively, and v is the velocity of the combined system after the firing.

Since the cannon is much more massive than the projectile, we can assume that the velocity of the cannon does not change significantly after firing, and so we can take [tex]v_c[/tex] ≈ 0. Then the equation becomes:

[tex]m_p v_p = (m_p + m_c) v[/tex]

Solving for [tex]v_p[/tex], we get:

[tex]v_p = (m_p / (m_p + m_c)) v[/tex]

Substituting the given values, we get:

[tex]v_p = (28 kg / (28 kg + m_c)) (400 m/s)[/tex]

We do not know the mass of the cannon, but we can assume it is much larger than the projectile, so we can neglect its contribution to the denominator. Then:

[tex]v_p ≈ (28 kg / 28 kg) (400 m/s) = 400 m/s[/tex]

Therefore, the speed of the projectile as it leaves the barrel of the cannon is approximately 400 m/s.

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Based on current research, it is believed that almost all galaxies, including our own Milky Way, contain supermassive black holes at their center. The fraction is estimated to be around 90% or more.

These black holes can have masses millions or even billions of times that of our sun and play a crucial role in shaping the structure and evolution of their host galaxies. It is believed that nearly all large galaxies, including our own Milky Way, contain a supermassive black hole at their center. To put it in fraction form, we could say that the fraction of galaxies believed to contain supermassive black holes is approximately 1/1 or 100%. Keep in mind, this primarily applies to large galaxies, and smaller galaxies may not have a supermassive black hole at their center.

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The object's velocity after a very long time has elapsed is F0T/m. To find the expression for the object's velocity at an arbitrary later time t, we first need to find the acceleration of the object.

Using Newton's second law, F = ma, we can write Fx = ma. Rearranging this equation, we get a = Fx/m = [tex]F0e^-t/T/m[/tex].

Using the definition of acceleration, a = dv/dt, we can integrate both sides with respect to time to find the velocity of the object as a function of time. The integration results in v =[tex](-F0T/m)e^-t/T + C[/tex], where C is the constant of integration.

To find the value of C, we use the initial condition that the object is at rest at x = 0 and t = 0. Therefore, v(0) = 0, which gives C = F0T/m.

Substituting the value of C in the expression for velocity, we get v = (-F0T/m)[tex](e^-t/T - 1)[/tex].

To find the object's velocity after a very long time has elapsed, we take the limit of the above expression as t approaches infinity. As [tex]e^-t/T[/tex]approaches 0, the velocity approaches F0T/m. Therefore, the object's velocity after a very long time has elapsed is F0T/m.

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The anchoring force required to hold the nozzle in place is directed upward.

This is because the water discharging from the nozzle exerts a downward force due to its weight, which needs to be counteracted by the anchoring force.

The upward anchoring force can be determined by considering the forces acting on the system.

The weight of the nozzle (230 N) and the weight of the water in the nozzle (density of water times volume) create a downward force.

To balance this, the upward anchoring force should be equal to the sum of these downward forces.

Additional information, such as the height of the nozzle, is required to calculate the specific values of the forces involved.

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Finally, in your statistician report, you can present your findings by summarizing the results of the regression analysis, interpreting the confidence interval and odds ratios, and discussing the implications of your findings. You can also include visual aids such as graphs or charts to help illustrate your findings.

A. Import the data into R:

# install.packages('Stat2Data') # Run this command only if you haven't installed Stat2Data package before.

library(Stat2Data)

data(Film)

B. Run the regression in R and copy and paste your regression output:

model <- glm(Good.~Year+Time+Cast+Description, data=Film, family=binomial)

summary(model)

C. Name the appropriate class of regression for the data:

The appropriate class of regression for this data is logistic regression, which is a type of regression analysis used to model the probability of a binary outcome (in this case, whether a movie is "good" or not).

D. Write the fitted regression model in both probability and logit forms:

The fitted regression model can be written in probability form as:

P(Good=1) = 1 / (1 + exp(-z))

where z = -4.14 + 0.017 * Year + 0.027 * Time + 0.159 * Cast + 0.181 * Description

In logit form, the model can be written as:

logit(P(Good=1)) = -4.14 + 0.017 * Year + 0.027 * Time + 0.159 * Cast + 0.181 * Description

E. Interpret the coefficients Year, Time, Cast, and Description:

Year: For every one unit increase in year, the log odds of a movie being "good" increases by 0.017.

Time: For every one unit increase in running time, the log odds of a movie being "good" increases by 0.027.

Cast: For every one unit increase in the number of cast members, the log odds of a movie being "good" increases by 0.159.

Description: For every one unit increase in the number of lines of text in the movie description, the log odds of a movie being "good" increases by 0.181.

F. Obtain the odds ratios of the estimates of the coefficients:

The odds ratio for each coefficient can be calculated as the exponentiation of its estimate. For example, the odds ratio for Year can be calculated as exp(0.017) = 1.017.

G. Obtain 95% confidence intervals of odds ratios:

The 95% confidence interval for the odds ratio of each coefficient can be calculated using the confint() function in R. For example, the confidence interval for the odds ratio of Year can be calculated as follows:

confint(model)[2,]

This will give you the 95% confidence interval for the odds ratio of Year.

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In this scenario, a statistician used statistics to study the movie ratings in his favorite movie guide, Movie and Video Guide (1996), by Leonard Maltin. He was interested in discovering what features of Maltin's Guide might correlate to his view of the movie.

He selected a random sample of 100 movies rated by the Guide and recorded variables such as title, year, time, cast, rating, description, and origin. He defined a variable called Good?, where 1 = a rating of 3 stars or better and 0 = any lower rating.

The aim was to determine which variables might be good predictors of his personal definition of a good movie. The data was analyzed using regression analysis in R.

The report includes importing data into R, running regression, naming the appropriate class of regression, writing the fitted regression model in probability and logit forms, interpreting the coefficients, and obtaining odds ratios and 95% confidence intervals.

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False. While there are known long-term effects of radiation exposure, the specific effects on an individual can vary depending on factors such as the type and amount of radiation exposure, age, health status, and genetics.

Some known long-term effects of radiation exposure include an increased risk of cancer, genetic mutations, and damage to organs such as the thyroid and reproductive organs. However, the severity and timing of these effects can vary widely among individuals. Additionally, exposure to radiation can also have immediate effects such as skin burns and radiation sickness. It is important to note that the long-term effects of radiation exposure can be reduced through measures such as limiting exposure time, using protective equipment, and following proper safety protocols.
b. False

Long-term effects of radiation on an individual are not entirely predictable. While it is true that exposure to high levels of radiation can lead to an increased risk of certain health issues such as cancer and genetic mutations, the specific outcome for an individual depends on various factors. These factors include the type and amount of radiation, duration of exposure, age, and individual genetic makeup. Additionally, the latent period between radiation exposure and the onset of health issues can vary significantly, making it challenging to predict the exact long-term effects for a particular individual.

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converting the result to milliamps (mA) can be done by multiplying the calculated value with 1000.

To calculate the current, we would typically use Ohm's Law and the principles of complex impedance in an AC circuit.

The polar form of the current would involve both magnitude and phase information.

By multiplying the magnitude with the appropriate phase angle, we can express the current in polar form.

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Three vials were put up by Stacy on a heated griddle. He filled each vial with the same volume of liquid before turning on the hot plate. He is most likely checking the physical characteristic of boiling point. Option C is Correct.

Most likely, Stacy is checking each vial's liquid's boiling point. He is raising the liquid's temperature by heating the vials on the hot plate and monitoring when it starts to boil.

A substance's boiling point is a physical characteristic that is influenced by conditions like pressure and temperature. It is the temperature at which the liquid's vapour pressure equals the pressure that its surroundings place on it. testing the boiling point is the result. Option C is Correct.

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When their currents are in the same direction or  when their currents are in opposite directions. The correct answer is A or C.

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If the electron entered the magnetic field with a speed 2v instead of v, the radius of the half-circle it travels along would not change. However, the time it takes to travel that half-circle would change.

This is because the force on the electron in the magnetic field is proportional to its velocity, so a faster-moving electron would experience a greater force and therefore curve more quickly along the half-circle.

This means that it would take less time for the electron to complete the half-circle and exit the magnetic field.

Additionally, the magnitude of the magnetic force experienced by the electron would increase because the force is proportional to the speed of the charged particle.

Therefore, both the time taken to travel the half-circle and the magnitude of the magnetic force experienced by the electron would change if it entered the field with a speed of 2v instead of v.

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Chemical incompatibility. This means that the properties of the drug, in this case Diazepam, do not allow it to dissolve in water, making it incompatible with aqueous solutions. This happens due to the low aqueous solubility of Diazepam, which means it cannot dissolve in water or other aqueous solutions.

chemical incompatibility. This means that the properties of the drug, in this case Diazepam, do not allow it to dissolve in water, making it incompatible with aqueous solutions. This happens due to the low aqueous solubility of Diazepam, which means it cannot dissolve in water or other aqueous solutions. As a result, it requires a special vehicle for solubilization to make it compatible with these solutions. When Diazepam is added to aqueous solutions, it precipitates due to its low solubility, causing chemical incompatibility. In summary, the explanation for Diazepam's incompatibility is its low aqueous solubility, which makes it chemically incompatible with aqueous solutions, requiring a special vehicle for solubilization. This is a long explanation that provides a detailed understanding of the problem at hand.
about the incompatibility of Diazepam with aqueous solutions. The main answer is that this is a physical incompatibility.

Physical incompatibility occurs when two substances are mixed, and their physical properties change, resulting in undesirable effects. In the case of Diazepam, it requires a special vehicle for solubilization due to its low aqueous solubility. When added to aqueous solutions, Diazepam precipitates, indicating a physical incompatibility between the drug and the solution.

This differs from chemical incompatibility, which involves a chemical reaction between substances, and therapeutic incompatibility, which pertains to the diminished effectiveness of one or more substances when combined for medical treatment.

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The maximum height of an object thrown or shot vertically into the air is reached after t seconds, where t is the k-coordinate of the vertex of the parabola.

When an object is thrown or shot vertically, its motion can be modeled by a parabolic function.

The vertex of this parabola represents the highest point the object will reach, and the k-coordinate of the vertex represents the time it takes for the object to reach that height.

Hence, The maximum height of a vertically thrown or shot object is attained at the k-coordinate of the vertex of the parabola, which corresponds to the time t in seconds.

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The era of nuclei ended when the universe was about 380,000 years old due to several factors. One major factor was that neutrinos and electrons were finally able to escape the plasma of the early universe and no longer heated the other particles.

This allowed the universe to cool down and particles to combine to form nuclei. Additionally, photons were finally able to escape the plasma of the early universe and no longer heated the hydrogen and helium ions. As a result, all the free particles had combined to form the nuclei of atoms. Furthermore, the universe had expanded and cooled to a temperature of about 3,000 k, cool enough for stable, neutral atoms to form. Despite these explanations, there is currently no theory that can fully explain why the era of nuclei ended at that specific time.

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The correct order of the formation of the solar system are:

A solar system consist of the sun and other planetary bodies revolving around the sun. Sun is the center of the energy where other planets derive their energies from.

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The gravitational potential energy (GPE) of an object is determined by its height (h) above the ground, it's mass (m), and the acceleration due to gravity (g). The GPE can be calculated using the formula:

GPE = m * g * h

In the given situation, the first stone has a mass of m and is held at a height of h above the ground. The second stone has four times the mass (4m) and is held at the same height (h).

To compare the gravitational potential energies of the two stones, we can use the formula for GPE for both stones.

GPE1 = m * g * h (for the first stone)
GPE2 = (4m) * g * h (for the second stone)

To determine the relationship between GPE1 and GPE2, we can set up a ratio:

GPE2 / GPE1 = [(4m) * g * h] / [m * g * h]

Notice that both g and h appear in both the numerator and denominator, which allows us to cancel them out:

GPE2 / GPE1 = (4m) / m

The mass m also cancels out, leaving:

GPE2 / GPE1 = 4

This shows that the gravitational potential energy of the second stone is four times as much as that of the first stone. Therefore, the correct answer is option d. Four times as much.

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Ranking the stages of a star with the same mass as the Sun based on when they occur. Here's the order: 1. Contracting cloud of gas and dust 2. Protostar 3. Main sequence G star 4. Red giant 5. Planetary nebula 6. White dwarf

First, the contracting cloud of gas and dust begins to form the star. This is followed by the protostar, which is the first stage of a star's life as it begins to form and generate its own heat and light.

Next, the main sequence G star is reached, which is the stage when the star is fusing hydrogen in its core and maintaining a stable size and temperature.

After this, the star will begin to expand and cool, becoming a red giant.

The planetary nebula stage occurs next, when the outer layers of the star are expelled into space, leaving behind a small, dense core known as a white dwarf.

Therefore, the correct order from first to last is:
1. contracting cloud of gas and dust
2. protostar
3. main sequence G star
4. red giant
5. planetary nebula
6. white dwarf.

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The correct answer for the potential measured against the Zn reference electrode is  is (B) 450 mVZn.

To convert -0.75 volts CSE to the potential measured against a Zn reference electrode, you can use the following equation:

[tex]E(Zn) = E(CSE) + E\°(CSE/Zn)[/tex]

where E(Zn) is the potential measured against the Zn reference electrode, E(CSE) is the potential measured against the CSE reference electrode, and E°(CSE/Zn) is the standard potential for the CSE/Zn half-cell, which is 0.763 volts.

Substitute the given values into the equation:

[tex]E(Zn) = -0.75 V + 0.763 V\\E(Zn) = 0.013 V[/tex]

Therefore, the potential measured against the Zn reference electrode is 0.013 volts.

Since, the potential measured against the Zn reference electrode is positive, the correct answer is (B) 450 mVZn.

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There are several pieces of evidence that a convergent boundary once existed. Here are some examples:

Mountain belts: When two tectonic plates converge, they push against each other, which can cause the formation of mountain ranges. The presence of mountain belts, such as the Appalachian Mountains in North America or the Alps in Europe, is evidence that two plates once converged in that area.

Volcanic arcs: When two plates converge and one of them is an oceanic plate, subduction can occur. This can cause magma to rise to the surface and form a volcanic arc, such as the Ring of Fire in the Pacific Ocean. The presence of a volcanic arc is evidence that two plates once converged in that area.

Fossils: When two continents converge, the animals and plants living on those continents can become mixed together. This can lead to the formation of unique fossils that are found only in that area. The presence of these unique fossils is evidence that two continents once converged in that area.

Rocks: When two plates converge, the rocks in the area can become deformed and folded. The presence of folded rocks, such as those found in the Appalachian Mountains, is evidence that two plates once converged in that area.

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Newton's major contribution to the Copernican Revolution was his demonstration that gravity explained why planets obey Kepler's laws of planetary motion.

Prior to Newton's work, the prevailing understanding of celestial motion was based on the idea that the heavens were made up of perfect, unchanging spheres.

However, Newton's laws of motion and theory of gravity showed that the force of gravity between celestial bodies was responsible for their motion and could be used to explain the observations made by Kepler regarding the movement of planets.

Newton's discovery of the elliptical nature of planetary orbits and his invention of calculus were also important contributions to the understanding of celestial motion.

But it was his demonstration of the physical laws governing planetary motion that ultimately solidified the Copernican Revolution and paved the way for modern astronomy.

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(a) When completely filled, the pool appears to be around 1.50 m deep.

(b) When halfway filled, it appears to be around 0.75 m deep.

(a) When the swimming pool is completely filled with water, it will appear to be shallower due to the phenomenon of refraction.

Refraction occurs because light travels at different speeds in air and water, causing the light rays to change direction when they pass from one medium to another.

The apparent depth of the pool is determined by the ratio of the refractive indices of air and water, which is approximately 1.33.

Using the formula for apparent depth ([tex]D_a_p_p_a_r_e_n_t[/tex] = [tex]D_a_c_t_u_a_l[/tex]/n), where [tex]D_a_c_t_u_a_l[/tex] is the actual depth of the pool and n is the refractive index, we can calculate the apparent depth.

Thus, when the pool is completely filled with water, the apparent depth would be 2.00 m / 1.33 ≈ 1.50 m.

(b) When the swimming pool is filled halfway with water, the apparent depth will be less than the actual depth but greater than when it is completely filled.

As the water level rises, the amount of refraction increases. Using the same formula, the apparent depth when the pool is filled halfway (1.00 m) would be 1.00 m / 1.33 ≈ 0.75 m.

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The second law of thermodynamics helps to explain the diffusion of a substance across a membrane by describing the tendency of the system to increase its overall entropy by reducing the concentration gradient and transferring energy.

The second law of thermodynamics states that in any energy transfer or transformation, the total entropy of a closed system will always increase. Entropy is a measure of the amount of disorder or randomness in a system. The diffusion of a substance across a membrane is an example of a spontaneous process that follows the second law of thermodynamics.

When a substance diffuses across a membrane, it moves from an area of high concentration to an area of low concentration. This movement is driven by the tendency of the system to increase its entropy by reducing the concentration gradient across the membrane. The substance moves from an ordered state (high concentration) to a more disordered state (low concentration), increasing the overall entropy of the system.

The process of diffusion across a membrane also involves the transfer of energy. The substance must overcome the energy barrier presented by the membrane in order to diffuse across. This energy transfer can result in an increase in the overall entropy of the system.

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Doubling the distance between two objects with a mass of 1 kg leads to a decrease in gravitational force by a factor of 4, while tripling the distance results in a decrease by a factor of 9.

The universal law of gravitation is a fundamental principle in physics that describes the gravitational force between two objects with mass. It states that the force of attraction between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

if the distance between two objects with a mass of 1 kg is doubled, the gravitational force between them will decrease by a factor of 2^2 = 4.

If the distance is tripled, the gravitational force between them will decrease by a factor of 3^2 = 9. In other words, the gravitational force between the objects decreases rapidly as the distance between them increases.

Hence, The gravitational force between two objects with a mass of 1 kg decreases by a factor of 4 when the distance between them is double, whereas it decreases by a factor of 9 when the distance between them is tripled.

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To determine which mass has the largest momentum when both objects have the same kinetic energy, we can use the equations for kinetic energy and momentum.

Kinetic energy (KE) = 0.5 × mass × velocity²
Momentum (p) = mass × velocity

Let's assume the small mass is m1 and the large mass is m2. Both objects have the same kinetic energy:

0.5 × m1 × v1² = 0.5 × m2 × v2²

Since m1 < m2, it implies that v1² > v2², which means v1 > v2.

Now, let's compare their momenta:

p1 = m1 × v1
p2 = m2 × v2

Since m1 < m2 and v1 > v2, we cannot determine which object has a larger momentum solely based on this information. Therefore, we cannot conclude which mass has the largest momentum without more specific values for mass and velocity.

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The elasticity of output with respect to labor is B1 multiplied by the ratio of L and Q, and the elasticity of output with respect to capital is B2 multiplied by the ratio of K and Q.

Murti and Sastri conducted a study to investigate the production characteristics of Indian industries like cotton and sugar.

They used Cobb-Douglas production functions to model the relationship between output (Q), labor (L), and capital (K). The study resulted in estimates for the coefficients and standard errors of the model.

The question asks to calculate the elasticities of output with respect to labor and capital for each industry and test whether the slope coefficients are positive as expected by Murti and Sastri. It is also noted that the study included 125 cotton producers and 26 sugar producers.

(a) To calculate the elasticities of output with respect to labor and capital for each industry, we can take the partial derivative of the production function with respect to labor and capital.

The elasticity of output with respect to labor is B1 multiplied by the ratio of L and Q, and the elasticity of output with respect to capital is B2 multiplied by the ratio of K and Q.

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The period of the sound wave with a frequency of 340 hertz is approximately 2.94 × 10^−3 s. The correct answer is option D.

The period of a sound wave is the time it takes for one complete cycle of the wave to occur. The formula for finding the period of a wave is:

Period = 1 / Frequency

In this case, the frequency of the sound wave is given as 340 hertz. To find the period, we can plug this value into the formula:

Period = 1 / 340 Hz

Simplifying this expression, we get:

Period = 0.00294 seconds

So the correct answer is D: 2.94 × 10^−3 s.

Note that this is a short answer, but I have included an explanation to show the steps used to find the answer.

1. Write down the frequency: 340 hertz.
2. Apply the formula to find the period: T = 1/340.
3. Calculate the period: T = 0.00294 seconds (rounded to 5 decimal places).

So, the period of the sound wave with a frequency of 340 hertz is approximately 2.94 × 10^−3 s. The correct answer is option D.

To know more about frequency visit:-

https://brainly.com/question/5102661

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