Bob used a force of 10N to pull a 50 kg trunk a distance of 5 m in 2 seconds. bob's power is

The tension in the porcupine's tail would increase if the speed at which the monkey swings the porcupine is doubled.

This is because the centripetal force required to keep the porcupine moving in a circular path is directly proportional to the square of its velocity. Therefore, if the velocity is doubled, the centripetal force required to keep the porcupine moving in a circular path will increase by a factor of four.

Compared to the original tension, the new tension in the porcupine's tail would be 4 times as great (4x) if the monkey swings the porcupine at twice the original speed.

The tension in the porcupine's tail is what provides the centripetal force required to keep the porcupine moving in a circle. Thus, if the required centripetal force increases, the tension in the porcupine's tail must also increase to provide the necessary force.

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Answer:

Yes

Explanation:

sorry if im wrong

The dog will not catch the car, as the car is traveling at a faster speed than the dog. The dog may continue to chase after the car, but it will not be able to catch it.

To determine if the dog catches the car, we need to compare their relative speeds. The car is traveling at a constant speed of 5 m/s, while the dog's speed is unknown. We can calculate the dog's speed using the distance it covers in 5 seconds, which is 20 meters.

To calculate the dog's speed, we divide the distance traveled by the time taken:

Speed = Distance / Time

Speed = 20 meters / 5 seconds

Speed = 4 m/s

Now we know that the dog's speed is 4 m/s, which is less than the car's speed of 5 m/s. Therefore, the dog will not be able to catch the car. The dog will keep running after the car but will never catch up to it because the car is traveling faster.

It's worth noting that even if the dog's speed was equal to the car's speed, the dog would still not be able to catch the car. This is because the car is moving away from the dog and the distance between them is constantly increasing.

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Answer:

Explanation:

v=u+at

Final velocity v=0 , u=35m.s, a=-a , t=0.02

a=u/t = 35/0.02 = 1750 m/s2

force = mass * acceleration = 0.15 * 1750 = 262.5N

True

Changes in the Earth's orbit around the sun and changes in the tilt and wobble of the Earth's axis can lead to cooling or warming of the Earth's climate because they change the amount of energy our planet receives from the sun

Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

The doctors could see if her cells are getting the molecules they need from food and air. Doing so allows the doctors a general overview of how well her body's biological systems are performing since the basic necessities of the human system are food and oxygen. Therefore if the body is receiving both food and oxygen properly and distributing it properly and efficiently as well without any problems then the most likely outcome is that she is healthy enough to perform her tasks in the submarine under more pressure.

Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

The average velocity is 10m/s.

How to slove the average velocity?

It travels for 5 sec at 15m/s

            distance = speed x time

                            = 15 x 5

                            = 75 m

then, travels for 100 m at 8m/s

                     time = distance/time

                              = 100/8

                              = 12.5 sec

Average velocity= total distance travelled/ total time taken

                            = 100+75/5+12.5

                            = 175/17.5

                            = 10 m/s

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The centripetal force exerted on the car, given it has a mass of 1500 Kg and is moving with a velocity of 40 m/s is 200000 N

Centripetal force is defined according to the following equation:

F = mv²/r

With the above formula, we can obtain the centripetal force as follow:

The centripetal force exerted on the car can be obatined as illustrated below:

F = mv²/r

F = (1500 × 40²) / 12

F = (1500 × 1600) / 12

F = 2400000 / 12

F = 200000 N

Thus, the centripetal force exerted is 200000 N

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weather is short term while climate is over long periods of time.

for example during the winter it is cold which is the climate, but on some days it is warm which is the weather

Answer:

  85.2 N

Explanation:

You want to know your weight if the Earth were 3 times as massive and had 5 times the present radius. Your weight is 710 N.

Your weight is proportional to the mass of the Earth and the square of the radius between your mass and the center of the Earth. The revised dimensions of the earth would multiply your weight by ...

  W = k(M/r²) = 710 N

  W' = k((3M)/(5r)²) = k(M/r²)(3/25) = (710 N)(3/25) = 82.5 N

Your weight would be 82.5 N.

Answer: Heyo Kenji Here! Here's your answer- A planet is most likely to have tectonic activity.

Explanation: Hope this helps!

Have a nice day!

- Kenji ^^

The given statement "the smallest kinetic energy that an electron in a box (an infinite well) can have is zero."  is False as smallest kinetic energy that an electron in an infinite well (a box) can have is not zero, but rather a non-zero value determined by the boundary conditions of box.

In an infinite well, the electron is confined to a finite region of space by a potential energy barrier that is infinite outside the box and zero inside it. The electron's wave function is a standing wave that oscillates between two walls of the box, and the allowed energies of the electron are quantized, meaning they can only take on discrete values.

The ground state of an electron in an infinite well corresponds to the lowest possible energy level, which has a non-zero kinetic energy. This is because the electron's wave function cannot have a node at both ends of the box, and so it must have a non-zero slope at the edges, resulting in a finite kinetic energy.

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Given:

A coil is connected to the bulb and a magnet is placed near the coil.

To find the consequence of moving the north side of the magnet towards the coil.

Explanation:

The changing magnetic field across the coil induces a current in the coil.

This is known as electromagnetic induction.

Here, the north side of the magnet moves towards the coil, this results in the change in the magnetic field across the coil.

The changing magnetic field induces a current in the coil.

As the coil is connected to the bulb, the induced current produced in the coil due to the moving magnetic field passes through the bulb.

Thus, the bulb glows.

Final Answer: The bulb glows as we move the north side of the magnet into the coil.

The elasticity and Poisson's ratio for this metal is 0.232.

What is ratio?

The realation between two numbers which shows how much bigger one quantity is than another.

Sol-

As per the given question

P=190KN

d=16 mm

Lo=50mm

X=50.1349-50=0.1349mm

Y=15.99-16=-0.01mm

The formula-

E=ó/€

Ó=P/A

A=r/4 d^2 =π/4(16)^2=201.062 mm

ó={190(1000)}201.062=944.982 Mpa

E=944.982/0.002698=350.253 GPa

€y=-0.000625

v=0.232(answer)

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The work done by a constant force acting on an object is equal to the product of the magnitudes of the displacement and the component of the force parallel to that displacement.

Work is a measure of energy transfer, and it is calculated as the product of the force applied on an object and the distance over which the force is applied. However, when the force is not applied in the same direction as the object moves, only the component of the force parallel to the displacement of the object will contribute to the work done.

This principle is known as the work-energy theorem and is commonly used in physics to calculate the amount of work done on an object in a particular situation.

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Answer:

The Full Moon and New Moon

Explanation:

Jeff has created a device that can convert solar energy into electricity. This innovative technology harnesses the power of sunlight to generate electrical energy, providing a sustainable and renewable source of power.

Jeff's device utilizes photovoltaic cells to convert solar energy into electricity. Photovoltaic cells, commonly known as solar cells, are made of semiconducting materials, such as silicon, that can absorb photons from sunlight.

When sunlight hits the solar cell, it excites electrons within the material, creating an electric current. The photovoltaic cells are arranged in a panel or module, which can be connected in series or parallel to achieve the desired voltage and current levels.

To optimize the conversion of solar energy, Jeff's device may include additional components, such as a charge controller, which regulates the charging of batteries or the direct usage of electricity.

It may also feature an inverter to convert the direct current (DC) produced by the solar cells into alternating current (AC), suitable for powering appliances and feeding into the electrical grid.

Overall, Jeff's device harnesses the photovoltaic effect to transform solar energy into a usable form of electricity, providing a sustainable and renewable energy source.

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Answer:

Distance 50m

final velocity 20ms^-1

\(s = ut + \frac{1}{2} a {t}^{2} \\ = 0 \times t + \frac{1}{2} \times 4 \times {5}^{2} = 50m\)

\(v = u + at \\ v = 0 + 4 \times 5 \\ v = 20ms^{ - 1} \)

The potential energy of a car moving with constant speed during downhill converts into heat energy or sound energy during braking.

Energy cannot be created or destroyed, according to the law of conservation of energy. However, it is capable of change from one form to another.

When a car goes downhill, its potential energy decreases but as the driver applied braking, the gain in potential energy lost during work against the frictional force applied by the brake and converts into  heat energy or sound energy during braking.

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The given information is:Luis rushes 40 m towards his truck. He notices he forgot his shoes and returns back to his house. His total travel time is 60 s.Let's determine Luis' average velocity and average speed.Average velocity of LuisAverage velocity of Luis is determined by the displacement and time taken to travel the distance.

We can say that the average velocity of Luis is 0 m/s because Luis comes back to the house.Average speed of LuisWe can determine the average speed of Luis by taking into account only the magnitude of the distance covered irrespective of the direction.Luis has covered a total distance of 80 m. Luis traveled 40 m towards his truck and returned 40 m towards his house.

Average speed = Total distance / Total timeAverage speed = 80 m / 60 sAverage speed = 1.33 m/sTherefore, the average velocity of Luis over the 60 s period is 0 m/s and the average speed of Luis over the 60 s period is 1.33 m/s.

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Mineralogically, barite is a sulfate, bornite is a sulfide, cuprite is an oxide, magnesite is a carbonate.

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Among the mineral groups, barite is a sulfide mineral, bornite is a sulfide mineral, cuprite is an oxide mineral, and magnesite is a carbonate mineral.

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Answer:

-1.46 m/s^2

Explanation:

Write down what is given first:

v0 = 12 m/s

vf = 0 m/s

d = 45 m

We are trying to find acceleration, so we will use the equation vf^2 = v0^2 + 2ad

Plug in the values we have:

0^2 = 12^2 + (2 x 45 x a)

a = - 1.46 m/s^2

Note that this acceleration is negative because the body is slowing down, so the acceleration with be negative, because the change in velocity is negative.

According to the given statement - 1.46 m/s²  is the acceleration of the body.

Acceleration is the rate of change in a moving asteroid's speed and direction over time. When something moves faster or slower, it is considered to be accelerating.

Use the formula a = v / t to determine acceleration, where v stands for the change in velocity and t for the time it took for the change to take place. Use the formula v = vf - vi to determine v, where vf stands for final velocity and vi for starting velocity.

Write down what is given first:

v0 = 12 m/s

vf = 0 m/s

d = 45 m

We are trying to find acceleration, so we will use the equation

vf² = v0² + 2ad

Plug in the values we have:

0² = 12² + (2 x 45 x a)

a = - 1.46 m/s²

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The magnetic force between two wires is 0.052 N which is  attract each other.

We need to know about magnetic force on a current-carrying wire formula to solve this problem. The magnetic force on two wires with same direction of current is

F = μ₀ . I1 . I2 . L / ( 2π . r )

where μ₀ is vacuum permeability (4π×10‾⁷ H/m) F is the magnetic force, I is current, L is the length of wire, r is distance of 2 wires.

From the question above, we know that:

L = 25 m

r = 6 cm

I1 = I2 = 25 A

By substituting the parameter, we get

F = μ₀ . I1 . I2 . L / ( 2π . r )

F = 4π×10‾⁷ . 25 . 25 . 25 / (2π . 0.06)

F = 0.052 N

Hence, the force between two wires is 0.052 N which is  attract each other.

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Responder:

Explicación:

Se dice que el trabajo se realiza cuando una fuerza aplicada a un objeto hace que el objeto se mueva a través de una distancia. El trabajo realizado por un cuerpo se expresa mediante la fórmula;

Workdone = Fuerza * Distancia

Como Fuerza = masa * aceleración,

Workdone = masa * aceleración * distancia

Masa dada = 5.0kg, aceleración = 2.0m / s² d =?

Para obtener d, usaremos una de las leyes del movimiento,

d = ut + 1 / 2at²

u = 0 (ya que el cuerpo acelera desde el reposo) yt = 7.0s

d = 0 + 1/2 (2) (7) ²

d = 49m

Workdone = 5 * 2 * 49

Workdone = 490 Julios