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The Moon travels 2288 miles per hour as it orbits around the Earth with an orbital period of 27 days.

Orbital velocity is known as the speed needed to stay in orbit.

The Moon is an celestial body that orbits around our planet Earth and is Earth's only natural satellite.

The Moon orbits around the Earth at a speed of 2,288 miles per hour  which is 3,683 kilometers per hour or can be 1.022 km/s. The orbital period is 27 days. During this time of the motion it travels a distance of 1,423,000 miles  which is 2,290,000 kilometers around the Earth in a fixed orbit.

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Explanation: a reduction in genetic diversity and discomfort for animals that have very exaggerated characteristics.

Answer:

It's a cause that's the last layer

Answer:

I believe the answer is A

Explanation:

It is not the ring of fire because the ring of fire is the result of tectonic plates moving. It is not the biosphere because biosphere is the regions of the surface.  The convecting mantle is the solid layer of the Earth because the mantle is mostly solid. The atmosphere is a solid plastic layer of the Earth. I hope this helps.

One advantage of hydroelectric energy is that it is a renewable source of energy, meaning it does not deplete natural resources like fossil fuels.

Additionally, hydroelectric plants can operate for decades with little maintenance, making them reliable sources of power. However, one disadvantage is the impact it can have on the environment. Hydroelectric plants require the construction of dams, which can disrupt the natural flow of rivers and affect aquatic ecosystems. Additionally, the creation of dams can displace people and wildlife from their habitats. Despite these drawbacks, hydroelectric energy remains a valuable source of renewable energy that can provide clean electricity for millions of people.

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1. The power radiated away by Stuart is 191 W.

2. The radiative power absorbed by Stuart's body is 461 W.

3. The final temperature of Stuart's body will be approximately 54.4 °C.

1. The power radiated away by Stuart can be calculated using the Stefan-Boltzmann law:

Power radiated = emissivity * Stefan-Boltzmann constant * (surface area) * (temperature of body)⁴

Substituting the given values, we have:

Power radiated = 0.96 * (5.67 x 10⁻⁸ W/(m² K⁴)) * (0.4 m²) * (306 K)⁴

≈ 191 W

This calculation represents the power radiated away by Stuart's body due to its own temperature.

2. The radiative power absorbed by Stuart's body can be calculated by multiplying the incident solar radiation power per unit area by the exposed surface area and the emissivity:

Power absorbed = incident solar radiation * (exposed surface area) * emissivity

Given that only Stuart's top-half is exposed to the sun, the incident solar radiation is assumed to be 1200 W/m²:

Power absorbed = 1200 W/m² * (0.5 * 0.4 m²) * 0.96 ≈ 461 W

This calculation represents the power absorbed by Stuart's body due to the incident solar radiation.

3. The final temperature of Stuart's body is reached when the rate of heat absorption equals the rate of heat loss through radiation. In other words, when the power absorbed equals the power radiated away.

Setting the absorbed power (461 W) equal to the radiated power (191 W) and solving for the temperature, we can find the equilibrium temperature.

Power absorbed = Power radiated

1200 W/m² * (0.5 * 0.4 m²) * 0.96

= 0.96 * (5.67 x 10⁻⁸ W/(m² K⁴)) * (0.4 m²) * (final temperature)⁴

Simplifying the equation and solving for the final temperature, we find:

(final temperature)⁴ ≈ (1200 W/m² * 0.2 * 0.96) / (0.96 * 5.67 x 10⁻⁸ W/(m² K⁴))

(final temperature)⁴ ≈ 336031.68

Taking the fourth root of both sides, we get:

final temperature ≈ 54.4 °C

This calculation represents the equilibrium temperature that Stuart's body will reach while sunbathing.

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Answer:

10.61 m/s

Explanation:

To find the final speed, we will use the conservation of momentum in each direction, so we can write the following equations:

Where m1 and m2 are the mass of the vehicles, v1 and v2 are their respective velocities in each direction, and Vfx and Vfy are the final velocities in each direction.

If one of the vehicles is headed north, its horizontal velocity Vx = 0 m/s. In the same way if the other is headed east, its vertical velocity Vy = 0m/s

Therefore, we can replace the values and solve the first equation as:

In the same way, we can solve the second equation as:

Now, we know that the vertical and horizontal speed was 7.5 m/s. So, we can calculate the final speed using the Pythagorean theorem as:

So, the speed after the collision was 10.61 m/s

Answer:

Energy stored in an object due to its position is Potential Energy. · Energy that a moving object has due to its motion is Kinetic Energy.

Explanation:

Answer:

To summarize, potential energy is the energy that is stored in an object due to its position relative to some zero position.

Holding a bow and arrow before shooting, The amount of energy stored before you race on track, And a roller coaster going to it's highest point staying there waiting to come down.

Responda:

1 metro

Explicação:

Dado que :

Tempo de reação = 0,2 segundos

Velocidade de deslocamento = 5 m / s

A distância percorrida antes da frenagem pode ser obtida usando a relação:

Distância = velocidade de viagem * tempo de reação

Distância percorrida antes da frenagem = (5 m / s) * (0,2s)

Distância percorrida antes da frenagem = 1 metro

Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence of options. However, one material that is good candidate for conducting electricity without reacting with other materials is metallic vanadium dioxide. This is because of the inability of this electrical conductor to conduct heat (an unusual property for all other electrical conductors) and thus makes it difficult for it to react with other materials (since an increase in temperature increases possibility of a reaction).

Calculating the maximum height it reaches during its flight, we find that the ball will rise to a height of approximately 45.92 meters before coming back to Earth.

When the ball is thrown straight up, it moves against the force of gravity, which slows it down until it reaches its highest point, where its velocity becomes zero. At this point, the ball starts to fall back to Earth.

We use the kinematic equation to calculate the maximum height (h) reached by the ball:

v^2 = u^2 + 2as

Where:

v = final velocity (0 m/s at the highest point)

u = initial velocity (30 m/s)

a = acceleration (acceleration due to gravity, approximately -9.8 m/s^2)

s = displacement (maximum height reached)

Rearranging the equation, we have:

s = (v^2 - u^2) / (2a)

Substituting the values into the equation:

s = (0^2 - 30^2) / (2 * -9.8)

s = -900 / -19.6

s ≈ 45.92 meters

Therefore, the ball will rise to a height of approximately 45.92 meters before coming back to Earth.

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Explanation:

It is given that,

Let Charge of \(1\ \mu C\) is taken from points A & B such that \(V_A-V_B=1000\ V\).

We need to find the energy of charge. Electric potential is defined as the work done per unit of electric charge. So,

\(W=(V_B-V_A)q\\\\W=-1000\times 10^{-6}\\\\W=E=-10^{-3}\ J\)

So, the energy of charge decreases by \(10^{-3}\ J\). Hence, the correct option  is (a).

Answer:

Friction

Explanation: is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static friction acts on objects when they are resting on a surface.Nov 3, 2021

Answer:

t = 1.33 seconds

Explanation:

Given that,

The mass of the ball, m = 5 kg

Initial speed, u = 8 m/s

Final speed, v = 12 m/s

Force, F = 15 N

We need to find the time for long the force is applied. Let the time be t. The force is given by :

\(F=\dfrac{m(v-u)}{t}\\\\t=\dfrac{m(v-u)}{F}\\\\t=\dfrac{5\times (12-8)}{15}\\\\=1.33\ s\)

So, the force is applied for 1.33 seconds.

Answer: Velocity is both magnitude and direction. Formula: d(distance)/t(total time)

None of the given options matches the calculated value, but the closest answer is c. 0.693 A. There might be some rounding errors or inaccuracies in the given information or choices.

To solve this problem, we need to use the equation for the current in an RL circuit:
I = (V/R)(1 - e(-Rt/L))
where I is the current, V is the voltage of the battery, R is the resistance of the inductor, t is the time, and L is the inductance of the inductor.

Plugging in the given values, we get:
I = (12.0V/7.00Ω)(1 - e^(-7.00Ω*0.2s/3.00H))
I = 0.968 A
Therefore, the answer is (b) 0.968 A.
To find the current 0.2 s after the circuit is closed, we will use the formula for the transient response of an RL circuit:

I(t) = I_max * (1 - e(-t / ))

where I(t) is the current at time t, I_max is the maximum current,  (tau) is the time constant, and e is the base of the natural logarithm. First, we calculate the time constant  and maximum current I_max:

τ = L / R = 3.00H / 7.00Ω ≈ 0.429s

I_max = V / R = 12.0V / 7.00 1.714A

Now, we can find the current at t = 0.2s:

I(0.2s) = 1.714A * (1 - e^(-0.2s / 0.429s))
0.2 s
I(0.2s) ≈ 1.714A * (1 - e^(-0.466))  1.714A * (1 - 0.627)  1.714A * 0.373

I(0.2s) ≈ 0.639 A

None of the given options match the calculated value, but the closest answer is c. 0.693 A. There might be some rounding errors or inaccuracies in the given information or choices.

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Answer:

It would depend on the amount of years.

Explanation:

I don’t think this is very helpful-

Have a great day!

Anygays-

The resistance of the circuit is 24 ohms.

When an electric current flows through a conductor, it encounters resistance, which causes some of the electrical energy to be converted to heat. The amount of resistance depends on the properties of the conductor and the conditions of the circuit.

Ohm's law relates the voltage (V), current (I), and resistance (R) in a circuit, and is expressed as:

V = I x R

We can rearrange this equation to solve for resistance:

R = V / I

In this case, we are given the voltage (V) of 120 volts and the current (I) of 5 amps, so we can plug these values into the equation to calculate the resistance (R):

R = V / I

R = 120 V / 5 A

R = 24 ohms

Therefore, the resistance of the circuit is 24 ohms.

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Answer:

B.

Explanation:

Given that a Moving a wire through a magnetic field created by two stationary permanent magnets will...:cause the magnets to move.

create a current through the wire.

produce no visible effect.

cause the magnetic field to flow in the opposite direction.

According to faraday's law, the EMF will be induced. And the induced EMF will definitely create electric current through the wire.

Therefore, option B is the best answer.

A man riding in an elevator experiences a normal force greater than his actual weight when the elevator moves downward with decreasing acceleration.

If the elevator is moving at a constant velocity, the weighing machine would measure the same weight of the man as it would at rest.

If elevator is accelerating upward we feel heavier, and if elevator is accelerating downward we feel lighter.

N = m(g+a) if the elevator has a net upward acceleration.

N = m(g-a) if the elevator has a net downward acceleration.

Man will feel his weight less the actual weight when the elevator goes down with some acceleration.

Because N=m(g−a) where a=downward acceleration.

The weighing machine will read the weight as m(g−a).

But when the elevator moves downward with decreasing acceleration, means net acceleration will be upward. Hence, A man riding in an elevator experiences a normal force greater than his actual weight when the elevator moves downward with decreasing acceleration.

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Answer: Yes, because the force of air resistance must be equal to the force of gravity, since the ball is not accelerating (constant velocity). Since the net forces acting on the object is zero, the object is in translational equilibrium.

No, a ball falling with constant velocity is not in translational equilibrium.

Translational equilibrium means that the net force acting on an object is zero, and this is not the case for a ball falling with constant velocity. Gravity is still acting on the ball, so there is a force pulling it downwards. However, the ball is moving at a constant velocity because the force of gravity is balanced by the force of air resistance. So, while the ball is not in translational equilibrium, it is in a state of dynamic equilibrium where the forces acting on it are balanced, resulting in a constant velocity.

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ANSWER:

D) 1584 m

EXPLANATION:

1) Convert seconds to minutes so we can see which velocity to use for the equation. Then convert the velocity from cm/s to m/s.

120 seconds = 2.0 minutes      (now we know what the velocity will be)

1320 cm/s = 13.2 m/s                (just divided by 100)

2) We can now find the distance by using the formula: distance = time x velocity

distance = 120 x 13.2        

distance = 1584 m

Note: the units for the time must be in seconds (s) and the units for velocity must be in m/s because when we multiply them, the seconds (s) cancel out/eliminate each other so that we are left with just metres (m) for distance.

Answer:

Explanation:

False.

There are also fields -- gravitational, electromagnetic...

The electromagnetic waves are determined by the wavelength. Hence, the correct option is D.

Electromagnetic waves are made up of vibrating electric and magnetic fields. The electric and magnetic fields are mutually perpendicular to each other. EM waves are transverse in nature.

Electromagnetic waves can travel through the vacuum in the form of radiation. The EM waves travel with the speed of light 3×10⁸ m/s. EM waves have no mass and charge. These waves can carry energy in space.

The behavior of electromagnetic waves depends on its frequency and wavelength. EM waves are classified into 7 types based on its frequency and wavelength. They are classified from radio waves to  Gamma rays.

Frequency is inversely proportional to wavelength, f = c / λ. Higher frequencies have shorter wavelength and lower frequencies have longer wavelength.

Thus, the wavelength determines the radiation that an electromagnetic waves. Hence, the option D is correct.

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Answer:

Explanation:

f. Student slips on ice

g. The force is called sliding friction force

Answer:

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What happens to kinetic energy as velocity increases?

Explanation:

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\(stay \: safe\)

When the velocity of an object increases, the kinetic energy of the object increases as well.

The kinetic energy of an object is the energy possessed by the object due to its motion.

The kinetic energy of an object in motion is calculated as follows;

K.E = ¹/₂mv²

where;

Thus, from the equation above, when the velocity of an object increases, the kinetic energy of the object increases as well.

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The primary usage of magnetite is as an essential iron ore for the production of steel. Additional uses include serving as a catalyst in the Haber process, which produces ammonia.

In beach sand, magnetite can occasionally be discovered in significant amounts. These black sands (also known as mineral sands or iron sands) can be found in a number of locations, including California in the United States, Lung Kwu Tan in Hong Kong, and the west coast of the North Island of New Zealand.

Because magnetite is poisonous, there is an issue. It results in oxidative stress, which interferes with regular cellular activity and helps to produce harmful free radicals, unstable molecules that can harm other crucial components.

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The density of lead is 11.4 g/cm3 at 25°C and the volume occupied by 25.0 g of lead is 2.19 cm3. Hence, option A is the correct option.

The formula to calculate the volume (V) of a substance is:

V = m / ρ

Here, m is the mass of the substance and ρ is its density so in this case, we have:

m = 25.0 g

ρ = 11.4 g/cm3

Putting these values into the formula:

V = 25.0 g / 11.4 g/cm3

V = 2.19 cm3

Therefore, the volume occupied by 25.0 g of lead is 2.19 cm3.

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The Colorado river began somewhere than in the desert, which is often the only way streams leaving the desert have water, therefore the river still has water after leaving the arid southwest region and entering the gulf of California.

The Colorado River and its tributaries travel through seven different states in the United States as well as Mexico on their way from their source in Colorado and Wyoming to where they flow into the Gulf of California. However, there were drawbacks; over a number of decades, river flows fell. Between 1960 and 1980, as Lake Powell developed behind Glen Canyon Dam, the Colorado River gradually ceased to flow steadily in the direction of the ocean.

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