20 POINTS…

If the particles within two objects have the same kinetic energy, are the two objects at the same temperature? Explain?

Please someone answer this

The number of walking paces as you walk down main street (0.25 miles) is 720 walking paces

1 mile = 5280 feet

Therefore,

0.25 mile = (0.25 mile × 5280 feet) / 1 mile

0.25 mile = 1320 feet

1 feet = 12 inches

Therefore,

1320 feet = (1320 feet × 12 inches) / 1 feet

1320 feet = 15840 inches

22 inches = 1 walking pace

Therefore,

15840 inches = (15840 inches × 1 walking pace) / 22 inches

15840 inches = 720 walking paces

Thus, we can conclude that as you walk down main street (0.25 miles), there are 720 walking paces

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The moment of inertia for a disk with mass of 500g and radius of 12cm rotated about its diameter is 7.2 × 10-³kgm².

Moment of inertia is a measure of a rigid body's resistance to change in its angular velocity around a given axis.

The formula for the moment of inertia is the “sum of the product of mass” of each particle with the “square of its distance from the axis of the rotation”. The formula of Moment of Inertia is expressed as follows:

I = mr²

Where;

According to this question, a disk with mass of 500g and radius of 12 cm rotated about its diameter. The moment of inertia can be calculated as follows:

I = 0.5kg × 0.12²m

I = 7.2 × 10-³kgm²

Therefore, 7.2 × 10-³kgm² is the moment of inertia of the disk.

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The sound would have a wavelength of about  9.8 * 10^-3 m.

The wavelength is a characteristic of a wave that describes the distance between two successive points in the wave that are in phase, or the distance over which the wave's shape repeats. It is typically denoted by the Greek letter lambda (λ) and is measured in meters (m) or other units of length.

Given that the speed of sound in air is 343 m/s

v= λf

λ = v/f

λ =  343 m/s/3.5x10^4 Hz

λ =  9.8 * 10^-3 m

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Answer:

The maximum height reached is 413.27 m.

Explanation:

How long will it take for a body to reach its maximum height, knowing that it was thrown, vertically upwards, with a velocity whose value was 90 m / s?

initial velocity , u = 90 m/s

gravity, g = 9.8 m/s^2

Let the maximum height is h.

At maximum height the velocity v = 0

Use third equation of motion

\(v^2 = u^2 - 2 gh\\\\0 = 90\times 90 - 2 \times 9.8 \times h\\\\h = 413.27 m\)

The kinetic energy of a model rocket when launched is 7200 Joules. The correct option is C.

The ability of an object to do work by virtue of its motion.

Kinetic energy is given by the expression

K.E = 1/2 mv²

where, m is the mass of the object and v is the velocity of the object.

Given is a model rocket that has a mass of 1kg at a height of 500m and it's traveling at 120m/s.

Substituting the value into the expression, we get

K.E = 1/2 x 1 x (120)²

K.E = 7200 Joules.

Thus, the correct option is C.

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Answer:

0.0520kg

Explanation:

divide by 1000

Answer:

I believe it is isostasy

Explanation:

Answer:The disturbance created by a source of sound in the medium travels through the medium and not the particles of the medium

Explanation:i hope this is right

In the given figure, the two angles that have measures equal to 35° are ∠ABO and ∠BCO

The angles that have a measure of 35° are determined as follows

The diameter of the circle O is mCA

Therefore, ∠mAC = 180°

Also;

m∠AOB = m∠AOD

m∠AOD = mAD

mAD = 180° - mCD

mAD = 55°

Therefore,

m ∠ABO = 90° – 55°

m ∠ABO = 35°

Given the above:

m∠CBO = 55° -35°

m∠CBO = 20°.

In addition, if m∠AOB = 55°,

then m∠BOC = 180° - 55°

m∠BOC = 125°

Therefore,

∠BCO = 180° - (20°  + 125°)

∠BCO = 35°

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By integrating the given equation, we can find the potential ϕ as a function of z.

Let's consider a point P along the positive z-axis with coordinates (0, 0, z). To find the potential at point P, we integrate the Green function G_D(r, r') with respect to the charge distribution over the surface of the conducting sphere.

The potential ϕ at point P can be calculated using the following integral:

ϕ(P) = ∫∫ G_D(r, r') σ(r') dS

Here, σ(r') represents the charge density on the surface of the sphere, and dS represents the differential surface element.

Since we are interested in the potential along the positive z-axis, we can simplify the integral by considering the symmetry of the problem. Due to symmetry, the potential ϕ will only depend on the radial distance r from the z-axis. Thus, we can rewrite the integral as:

ϕ(P) = 2π∫ G_D(r, r') σ(r') r' dr'

Now, we need to express the charge density σ(r') in terms of the potential difference V and the radius R. The charge density on the upper hemisphere is V/(4πR^2), and on the lower hemisphere, it is -V/(4πR^2). Therefore, we can write:

ϕ(P) = (V/R^2) ∫ (r^2 + r'^2 - 2rr')/(r-r')^2 r' dr'

This integral can be evaluated using appropriate techniques of integration.

By integrating the above equation, we can find the potential ϕ as a function of z.

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e friend sitting on the swing = 50 kg

Rate of acceleration = 4 m/s^2

The above information's are already given in the question. We need to utilize these information's in such a manner that the answer to the question can be determined easily.

We already know that

Force = Mass * acceleration.

This formula has to be used to find the force exerted.

Then

Force exerted = Mass of the friend * Acceleration

                      = (50 * 4) kg m/s^2

                      = 200 Newton

So the force exerted by me is 200 Newton. I hope the explanation and the procedure is clear to you and you are satisfied with it.

Steam causes more severe burns than liquid water at 100 degrees Celsius because it has much more energy due to its increased surface area.

Energy is the ability to do work. It can take many forms, such as kinetic, potential, thermal, electrical, chemical, nuclear, and others. It is a property of matter and an important component of physical and chemical processes. Energy is often measured in joules (J), kilojoules (kJ), or calories (cal). It is an essential component of physical and chemical reactions, and it is the source of power for many activities, such as the operation of machines, the production of light, and the movement of vehicles. In addition, it is important for the growth and maintenance of living organisms, and for the transformation of matter. Energy is neither created nor destroyed, but it can be converted from one form to another, such as when heat is converted to electrical energy, or when chemical energy is converted to kinetic energy.

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Answer:

It's option 4, 647n!

Explanation:

Ff = μFn

Assuming it's a flat surface, Force normal is equal to the force of gravity. Since the mass is given in kg, we multiply the mass by 9.81 (acceleration due to gravity).

110 x 9.81 = 1079.1

Now we know the force of gravity and the coefficient of friction, we just multiply them.

Ff = 1079.1(0.6) ≈ 647 N

Answer:

calculus I believe soo

Answer:

me‍♀️

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Answer:

me it's annoying like just let us get the answer

The velocity with which the electrons drift in the silver wire is approximately 1.58 x 10^-4 m/s.

To find the velocity with which electrons drift in a silver wire, we can use the formula:

I = nAvq

where:

I is the current (in amperes),

n is the number of free electrons per unit volume (in m^3),

A is the cross-sectional area of the wire (in m^2),

v is the drift velocity of electrons (in m/s), and

q is the charge of an electron (approximately 1.6 x 10^-19 C).

Given:

I = 5.0 A (current)

n = 5.8 x 10^28 m^-3 (number of free electrons per m^3)

A = πr^2 = π(0.002 m)^2 (cross-sectional area)

q = 1.6 x 10^-19 C (charge of an electron)

First, we calculate the cross-sectional area of the wire:

A = π(0.002 m)^2 = 1.2566 x 10^-5 m^2

Next, we rearrange the formula and solve for v:

v = I / (nAq)

v = 5.0 A / (5.8 x 10^28 m^-3 * 1.2566 x 10^-5 m^2 * 1.6 x 10^-19 C)

v ≈ 1.58 x 10^-4 m/s

Therefore, the velocity with which the electrons drift in the silver wire is approximately 1.58 x 10^-4 m/s.

The drift velocity represents the average velocity at which the electrons move in the wire under the influence of an electric field. It is relatively small due to frequent collisions with lattice ions and other electrons within the wire.

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Answer:

Even in space, objects have mass. And if they have mass, they have inertia. That is, an object in space resists changes in its state of motion. A force must be applied to set a stationary object in motion.

The average wavelength of the CMB with the reported 0.25 eV/cm³ energy density is 8.9 mm

The average wavelength of the Cosmic Microwave Background (CMB) radiation cannot be directly calculated from the reported energy density of 0.25 eV/cm³. The energy density of CMB radiation is defined as the energy per unit volume and does not specify the wavelength of the radiation.

To calculate the average wavelength, you would need the full blackbody spectrum of the CMB radiation and the fraction of the total energy that is at each wavelength. Then, you could use the following formula to calculate the average wavelength:

= λ avg

= (∫ λ B λ(T) dλ) ÷ (∫ B λ(T) dλ)

here B λ(T) is the Planck blackbody function at temperature T and λ is the wavelength.

The average wavelength of the CMB with the reported 0.25 eV/cm³ energy density can be calculated using the equation

λ = hc/E,

here h = Planck's constant,

c = speed of light,

E = energy of a single CMB photon.

Thus, the average wavelength is calculated as follows:-

= λ

= (6.626 x 10⁻³⁴ J·s)(2.998 x 10⁸ m/s) ÷ (8.617 x 10⁻³⁴ eV)

= 0.0089 cm

= 8.9 mm.

This wavelength corresponds to a frequency of 337 GHz and a temperature of 2.725 K.

In this case, the temperature of the CMB radiation is approximately 2.7 K and the average wavelength cannot be directly calculated from this information alone.

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Answer: Most aerobic and strength training programs cause your muscles to contract and tighten. So stretching after you exercise helps optimize the range of motion about your joints and boosts circulation.

Hope this helps!

Answer:

Socialist

Explanation:

Answer: socialist

Explanation: A socialist form of government is where the goods and services are equally shared, and the political power is distributed among the people.

Answer: Temporary Suppression

Explanation: None.

The fact that we slow down when we see a police car and then speed up again is an example of reactive behavior.

It refers to the instinctive response drivers often have when they notice the presence of law enforcement vehicles or other potential sources of authority or enforcement. This reaction can lead to temporary changes in driving behavior, such as slowing down briefly and then returning to the previous speed once the perceived threat has passed.

It can also be attributed to several factors:

1. Fear of Punishment: The primary reason for this behavior is the fear of potential consequences. When drivers see a police car, they may worry about getting a ticket, facing fines, or having their driving record affected. This fear prompts them to quickly adjust their speed and adhere to traffic regulations to avoid potential punishment.

2. Compliance with Authority: Police cars represent authority figures enforcing traffic laws. As a result, many drivers instinctively respond by complying with the presence of law enforcement. Slowing down momentarily can be seen as a show of respect or adherence to their authority.

3. Perception of Surveillance: The presence of a police car can create a sense of being monitored or under scrutiny. Even if drivers are not consciously breaking any laws, the feeling of being observed can lead to a temporary adjustment in behavior as a subconscious response.

4. Habit and Social Norms: The behavior of slowing down when encountering a police car has become a common practice and a social norm in many societies. This behavior may be reinforced by observing others engaging in similar actions, creating a collective response to the presence of law enforcement vehicles.

It's worth noting that this behavior is not universally observed in all drivers, and individual reactions may vary based on personal experiences, cultural influences, and the prevailing traffic conditions. Additionally, it's important for drivers to prioritize safety and adhere to traffic laws consistently, rather than solely responding to the presence of law enforcement.

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A step up transformer has an output voltage = 2304.5 Volt(rms).

We are using the formula is,

\(\frac{V_{2} }{V_{1} } =\frac{N_{Sec} }{N_{pri} }\)

We know,

\(N_{Sec}\) = The turns on the secondary coil= 2095 turns.

\(N_{pri}\) = The turns on the primary coil = 100 turns.

\(V_{1}\) = The input voltage of a step-up transformer = 110 v (rms).

We have to find the output voltage of a step-up transformer = \(V_{2}\)  v(rms).

Now, we substitute the values of the known parameters in the above equation, we get:

\(V_{2} =\frac{N_{Sec} }{N_{pri} } \times V_{1}\)

Or, \(V_{2} =\frac{2095 }{100} \times 110\)

Or, \(V_{2} = 2304.5 V\)

So, From the above calculation we can see that the output voltage of a step-up transformer is 2304.5 volt(rms).

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Okay, let's break this down step-by-step using the information given and the graph provided:

1) The P wave was recorded at 10 minutes.

2) The S wave arrived 5 minutes after the P wave, at 15 minutes.

3) According to the graph, the P wave travels at a speed of about 5 km/s.

4) The S wave travels at a speed of 3 km/s, which is slower than the P wave.

5) To find the distance to the epicenter, we need to use the difference in travel time between the P and S waves, which is 5 minutes.

6) Since the P wave speed is 5 km/s, in 5 minutes it will travel a distance of 25 km (5 km/s * 5 min).

7) The S wave speed is 3 km/s, so in 5 minutes it will travel 15 km (3 km/s * 5 min).

8) Therefore, the total distance to the epicenter is 25 + 15 = 40 km.

9) So the distance between the recording device and the earthquake epicenter is 40 km.

Does this make sense? Let me know if you have any other questions! I can also re-explain anything if needed.

There are roughly 1500 Km between the earthquake's epicenter and the recording device.

Using the graph, the time difference between the P wave and the S wave corresponds to a distance on the vertical axis. The distance is given in kilometers, convert minutes to seconds before using the graph.

5 minutes is equal to 300 seconds (since there are 60 seconds in a minute). So, see the point on the graph that corresponds to a time difference of 300 seconds (or 5 minutes). This point is located at a distance of approximately 1500 km.

Therefore, the distance between the recording device and the epicenter of the earthquake is approximately 1500 km.

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The electric flux through the top surface of the cube is approximately 1.16 × 10³ N·m²/C.

To find the electric flux through the top surface of the cube, we will use Gauss's Law. The equation for Gauss's Law is:

Φ = Q / ε₀

where Φ represents the electric flux, Q is the charge enclosed (31.0 nC, or 31.0 × 10⁻⁹ C), and ε₀ is the vacuum permittivity constant (8.85 × 10⁻¹² C²/N·m²).

Since the charge is at the center of the cube, the flux will be evenly distributed through all six faces of the cube. To find the electric flux through the top surface, we simply need to divide the total flux by 6:

Φ_top_surface = (Q / ε₀) / 6

Φ_top_surface = (31.0 × 10⁻⁹ C) / (8.85 × 10⁻¹² C²/N·m²) / 6

After calculating the values, we get:

Φ_top_surface ≈ 1.16 × 10³ N·m²/C

The electric flux is approximately 1.16 × 10³ N·m²/C.

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This is a defective question. It was WRITTEN by someone who is unclear on the concepts.  DON'T try and answer it.

It's trying to get us to use Newton's second law ... F = m • a.

But that only tells us how much force must act ON THE CAR in order to accelerate it. (45 kg) • (4 m/s^2) = 180 newtons.

This is NOT the force exerted BY the car when it hits something. THAT force depends on its speed WHEN it hits, AND how long it takes for the wreckage to actually come to rest, AND how hard or soft the wall is.

DON'T try to answer this question. Your answer will be wrong, you won't understand why, and the teacher you try to argue with probably won't either.

============================================

More explanation:

Think about jumping off of a ladder in your back yard.  Several times.

Your mass is the same every time.  Your acceleration is the same every time . . . 9.8 m/s² down, the acceleration of Earth gravity, every time.

BUT ...

-- I'll bet you would rather land on wood than on concrete. The force of landing would be less.

-- I'll bet you would rather land on dirt than on wood. The force of landing would be less.

-- I'll bet you would rather land on grass than on dirt. The force of landing would be less.

-- I'll bet you would rather land on a pile of blankets than on dirt. The force of landing would be less.

-- I'll bet you would rather land on a trampoline than on a pile of blankets. The force of landing would be less.

-- I'll bet you would rather jump from a short ladder than from a tall one.  Your speed would be less when you landed, and the force of landing would be less.

==> Your mass is the SAME every time, and your acceleration is the SAME every time.  But the force when you hit is DIFFERENT every time.

The mass and acceleration of the car DON'T tell us the force of the hit when the car hits a wall.  

Answer:

0.0065 m³

Explanation:

Apparent weight = weight − buoyancy

32 N = 96 N − (1000 kg/m³) (9.8 m/s²) V

V = 0.0065 m³

The magnetic forces on segments x and z are equal in magnitude but opposite in direction, the loop will experience a torque causing it to rotate clockwise.

Based on the given information, a rectangular wire loop consists of segments w, x, y, and z, with a counterclockwise current i flowing through it. The magnetic field is uniform and directed to the left. The magnetic forces on the segments can be determined using the formula F = iL x B, where F is the magnetic force, i is the current, L is the length of the wire segment, and B is the magnetic field.
For segments w and y (the horizontal segments), the magnetic force will be zero since the current is parallel to the magnetic field.
For segment x, the current is upward, and the magnetic field is to the left. Using the right-hand rule, the magnetic force on segment x will be directed into the plane (towards you).
For segment z, the current is downward, and the magnetic field is to the left. Using the right-hand rule, the magnetic force on segment z will be directed out of the plane (away from you).

Newton's third law states that if the magnet pulls the loop higher, the loop must pull the magnet below in an equal and opposite manner.

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