you drive down the road at 31 m>s (70 mi>h) in a car whose tires have a radius of 34 cm. (a) what is the period of rotation of the tires? (b) through what angle does a tire rotate in one second?

Given

The electric flux is

Radius of the sphere,

To find

a. The flux through a gaussian sphere with radius of 29.0 cm.

b. The magnitude of the charge

Explanation

a. Since the gaussian sphere covers the same charge so the electric flux through both the sphere will be same.

Thus the required flux is

b.

The magnitude of the charge is

Conclusion

a. The flux is

b. The charge is

Answer:

m=100kg

Explanation:

E=1/2mv^2

10000=1/2m(20)^2

10000=1/2m(400)

10000=1/2m200

50=1/2m

100=m

Answer:

a=4m/s2

Explanation:

Answer:

The two forces act in opposite directions. The forces get stronger as the magnets get closer together.

Explanation:

Sound travels the fastest through  steel. So, option (A) is correct,

Depending on the medium that it is moving through, sound has a wide range of speeds. The stiffness of the medium (or compressibility in the case of gases) and its density work together to define the speed of sound in that medium. The speed of sound increases with the rigidity (or lack of compressibility) of the medium. The speed of sound decreases with increasing medium density.

Due to air's ability to be compressed, the speed of sound in air is low. The speed of sound is often higher in liquids and solids than in gases because they are more rigid and difficult to compress than gases. Given that temperature impacts density, the speed of sound is somewhat correlated with the temperature of the material it is travelling through, particularly for gases.

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Answer:

0.9 m

Explanation:

Hooke’s Law

\(\large\boxed{F = ke}\)

where:

Given values:

Substitute the given values into the formula to find k:

\(\implies 2.0=0.30k\)

\(\implies k=\dfrac{2.0}{0.30}\)

\(\implies k=\dfrac{20}{3}\; \sf N/m\)

To find the extension if the force applied is 6 N, substitute the found value of k and the given value of F into the formula and solve for e:

\(\implies 6=\dfrac{20}{3}e\)

\(\implies 18=20e\)

\(\implies e=\dfrac{18}{20}\)

\(\implies e=0.9\; \sf m\)

Answer:

80.08 km/h

Explanation:

Given that Black Panther ran 567.6 km to the east in 23 hours

Velocity = distance covered/time

Substitute the distance covered and time into the formula

Velocity = 567.6/23

Velocity = 24.68 km/h

then turned around and ran 221.8 km to the west in 1.2 hours.

Velocity = 221.8/1.2

Velocity = 184.83 km/h

What was his average velocity during the trip in km/h ?

Average velocity = (V + U)/2

Since the two velocity are opposite to each other, the average velocity will be:

Average velocity = (-24.68 + 184.83)/2

Average velocity = 160.15/2

Average velocity = 80.08 km/h

Therefore, his average velocity during the trip is 80.08 km/h

Answer:

KE = total energy available - energy required to eject (threshold)

KE = (3 - 1.5) eV = 1.5 eV

Answer:

The car is speeding up in a negative direction.

Explanation:

By dynamically tracking the MPP, the MPPT maximizes the power output of the photovoltaic system, improving its overall efficiency and maximizing energy production.

The maximum power that the provided photovoltaic panel can generate under the given illumination conditions can be calculated using the following steps. First, we need to determine the fill factor (FF) of the panel, which represents the efficiency of converting sunlight into electrical power.

The fill factor is the ratio of the maximum power point (Pmax) to the product of the open circuit voltage (Voc) and the short circuit current (Isc). Given that Voc is 37.5V and Isc is 8.73A, we can calculate the fill factor as follows:

FF = Pmax / (Voc * Isc)

Next, we need to determine the maximum power point voltage (Vmp) and current (Imp) of the panel. These values can be found by multiplying the open circuit voltage and short circuit current by the fill factor:

Vmp = Voc * FF

Imp = Isc * FF

Finally, we can calculate the maximum power (Pmax) using the equation:

Pmax = Vmp * Imp

For the given panel, the maximum power under the defined illumination conditions would be the product of Vmp and Imp, which can be calculated using the fill factor derived from Voc and Isc.

Assuming the same panel, but with an increased solar irradiance of 1.5kW/m², the maximum power produced can be estimated by considering that the open circuit voltage remains constant, while the short circuit current is expected to increase. The fill factor and maximum power calculations can be performed using the new values of Isc and the fill factor derived from Voc and Isc.

A maximum power point tracker (MPPT) is needed in photovoltaic systems to ensure that the photovoltaic panel operates at its maximum power point (MPP) under varying environmental conditions. The MPP is the point at which the panel produces the highest possible power output.

Since solar irradiance and temperature can fluctuate throughout the day, the MPP can shift, resulting in suboptimal power generation if the panel is not continuously adjusted. An MPPT continuously monitors the panel's voltage and current and adjusts the operating point to maintain the MPP.

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The object that has potential energy is the can of gasoline.

Potential energy is described as the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

The forms of potential energy includes:

Potential energy is described as the energy a system has due to position, shape, or configuration.

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Answer:

the same

Explanation:

if that is what you are asking

In an electrostatic equilibrium condition, the electric field inside a conductor is zero.

The area around a charged body in which it can exert an electrical force on another charged body is known as the electric field.

The electric field is caused by a difference in electric potential energy per unit charge between two locations.

Electric field inside a conductor: The electric field inside a conductor in electrostatic equilibrium is always zero.

This is due to the fact that charges in an electric conductor are free to move and redistribute themselves until they reach equilibrium.

As a result, any electric field inside the conductor is canceled out by the redistribution of charges in the conductor.

The electric field is proportional to the charge per unit area inside the conductor.

The electric field is zero, so there is no charge per unit area inside the conductor, resulting in no electric field.

Therefore, the electric field inside a conductor in electrostatic equilibrium is zero.

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Answer:

C

Explanation:

through the desk....here desk is the student's medium to hear the sound. its oblivious because when he lifts his head away from the desk he hears nothing else

To calculate the amount of heat transferred into the 10-kg piece of aluminum, we can use the formula:

Q = mcΔT

where Q is the amount of heat transferred, m is the mass of the aluminum (10 kg), c is the specific heat of aluminum (900 J/kg×°C), and ΔT is the change in temperature (5.0°C).

Substituting these values into the formula, we get:

Q = (10 kg) x (900 J/kg×°C) x (5.0°C)

Q = 45,000 J

Therefore, the amount of heat transferred into the 10-kg piece of aluminum is 45,000 J.

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Ok so it is working ok!

Answer:

Its a wave

Explanation:

THis is one

Answer: a light wave

Explanation: a pex

Answer:

Insertion

Explanation:

It causes a frameshift.

A horizontal net force f is exerted on a 4.0 kg object at rest. The object starts at x = 0 m and travels 6.0 m along a horizontal frictionless surface. The net force F as a function of the object's position x is shown below.

What is the velocity of the object?

Answer: 6.7 m/s

The intensity of sound is inversely proportional to the square of the distance from the source. The intensity of sound at 4 m away from the source is approximately \(0.993W/m^{2}\) (watts per square meter).

The intensity of sound is defined as the power per unit area. According to the inverse square law for sound propagation, the intensity of sound is inversely proportional to the square of the distance from the source. Mathematically, it can be expressed as

\(I=P/(4\pi r^{2})\)

where I is the intensity, P is the power, and r is the distance from the source.

Given that the power of sound at the source outlet is 100 W and the distance from the source is 4 m, we can substitute these values into the formula. Thus, we have

\(I = 100 W / (4\pi (4 m)^2)\)

Simplifying this expression, we find that the intensity of sound at 4 m away from the source is approximately \(0.993W/m^{2}\) (watts per square meter).

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Answer:We have: K.E. = 1/2 mv²

Here: m = 3 Kg

v = 6 m/s

Substitute their values,

K.E. = 1/2 * 3 * 6²

K.E. = 1/2 * 3 * 36

K.E. = 54 J

In short, Your Answer would be 54 Joules

/jaydenolnger1988 is right!

Answer:

fem = -0.126 V

Explanation:

Faraday's law is

          fem =  \(- \frac{d \phi}{dt}\)

where the flow is

          Ф = B . A = B A cos θ

bold letters indicate vectors.

In this case, the normal to the area is parallel to the magnetic field, so the angle is zero and the cos0 = 1

           fem = \(- A \ \frac{dB}{dt}\)

in this case they indicate that to carry the loop from outside to inside the field in Δt = 5 s, so we can change them by variations

           fem = \(- A \frac{\Delta B}{\Delta t}\)

let's calculate

           fem = - 0.7 (0.9 -0) / 5

           fem = -0.126 V

Answer:

tube (sufficiently) long / not too short.

The equation that expresses the amount of energy the refrigerator has used as a function of time can be derived by considering two components: the energy used per hour and the initial energy required to start the refrigerator.

Let's denote the energy used per hour as E_hour and the initial energy required to start the refrigerator as E_start.

The total energy used by the refrigerator, E_total, can be calculated by multiplying the energy used per hour by the time in hours, t, and adding the initial energy required:

E_total = E_hour * t + E_start

In this case, the energy used per hour is given as 200 j, and the initial energy required is given as 1200 j. Therefore, the equation becomes:

E_total = 200t + 1200

This equation expresses the amount of energy the refrigerator has used as a function of time, where time is given in hours.

To calculate the energy used by the refrigerator at a specific time, substitute the desired value for t into the equation and solve for E_total.

For example, if you want to calculate the energy used after 3 hours:

E_total = 200 * 3 + 1200
        = 600 + 1200
        = 1800 j

So, after 3 hours, the refrigerator will have used 1800 joules of energy.

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The initial velocity of the grasshopper as it leaves the ground is 1.90 m/s. We can calculate the initial velocity using the kinematic equation vf² = vi² + 2ad where vf = 0, a = g = 9.81 m/s², and d = 0.430 m. The initial velocity of the grasshopper is found to be 1.90 m/s.

The initial speed at which the grasshopper leaves the ground is to be determined given that the grasshopper can jump straight upwards to a height of 0.430 m.

To determine the initial speed, we will use the kinematic equation:

vf² = vi² + 2ad  where, vi is the initial velocity of the grasshopper

vf is the final velocity of the grasshopper

d is the height attained by the grasshopper

a is the acceleration due to gravity

We know that the acceleration due to gravity is a constant, g = 9.81 m/s², since the grasshopper jumps straight upwards, the final velocity is zero, and the distance travelled is equal to the height attained, which is 0.430 m.

Substituting these values in the above equation, we have:

0 = vi² + 2 × 9.81 × 0.430

Simplifying the equation, we get

vi = √(2 × 9.81 × 0.430) = 1.90 m/s

Therefore, the initial speed at which the grasshopper leaves the ground is 1.90 m/s.

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The Milky Way galaxy is the home of the Sun. Over 100,000,000,000 stars are thought to be present in the Milky Way alone, according to astronomers.

One of the many billions of galaxies in the cosmos is the Milky Way galaxy. The universe is a large region of space that houses everything that has ever existed. All the galaxies, stars, and planets are in the cosmos. Unknown is the precise size of the universe. According to scientists, the universe is still growing. At least 100 billion stars, including our Sun, make up the Milky Way, a spiral galaxy with a diameter of around 100,000 light-years. We are located in one of the four primary arms of the pinwheel-shaped constellation of stars, roughly two thirds of the way from the center. It is believed that the majority of the stars in our galaxy are home to their own families of planets.

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Answer:

blue

Explanation:

blue is the only color being reflected, meaning it's the only one that will be visible

Answer: The equation that relates wavelength and frequency for electromagnetic waves is: λν=c where λ is the wavelength, ν is the frequency and c is the speed of light.

10/0.5=20 meter.

Explanation:

The speed of a wave has a wavelength of 0.5 m/s and a frequency of 2 hz is   0.25 m.

Wave is is a disturbance in a medium that carries energy as well as momentum . wave is characterized by amplitude, wavelength and phase. Amplitude is the greatest distance that the particles are vibrating. especially a sound or radio wave, moves up and down. Amplitude is a measure of loudness of a sound wave. More amplitude means more loud is the sound wave.

Wavelength is the distance between two points on the wave which are in same phase. Phase is the position of a wave at a point at time t on a waveform.

There are two types of the wave longitudinal wave and transverse wave.

Longitudinal wave : in which, vibration of the medium (particle) is parallel to propagation of the wave. Sound wave is a longitudinal wave.

Transverse wave : in which, vibration of the medium (particle) is perpendicular to propagation of the wave. Light wave is a Transverse wave.

The relation between velocity, frequency  and wavelength is,

c = λν

Where λ is wavelength, ν is frequency and c is velocity.

Given,

c = 0.5 m/s

ν = 2 hz

λ = ?

Putting all the values in the equation,

0.5 = 2λ

λ = 0.5/2 = 0.25 m

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