I just need my question answered

I just need my question answered

a water reservoir tankof capacity 250m3 is situatedat a height of 20 m from water level. What will be the power of an electric motor to be used to fill the tank in 3 hrs

A stroboscope is set to flash every 8.00 X 10-5 s. What is the frequency of the flashes? Find the frequency of a tuning fork that takes 2.50 X 10-3s to complete one...

A planet is orbiting a star when the star’s gravity suddenly vanishes. The planet then obeys Newton’s First law and heads outward along a straight line. Is Kepler’s second law still obeyed? That...

Humans can walk at an average speed of 2.00 m/s. How many hours would it take someone to walk the 4800 km from New York to Los Angeles?

if the distance between the photogates in the diagram is 30 cm, and the times for the photogates are listed as: blocked 0.000000 unblocked 0.00156 blocked 0.1 calculate...

Saturn orbits the Sun with an orbital radius of 1.43 x 10^12m. Given that the mass of the Sun is 2.0 x 10^30 kg, calculate the period of Saturn's orbit.

a)If constant torque is applied to the wheel and it comes to rest in 2 seconds, what is the magnitude of the angular acceleration? b) Calculate the magnitude of the torque required to bring the...

The merry go round spins freely (w/out friction) at 10 rpm. What is the total angular momentum of the system? Assume that the child is a point mass.

I dont have the whole question but i really need to answer this to pass my quiz later.

A. When the strong nuclear forces are less than the electrostatic forces of attraction B. When the strong nuclear forces are less than...

The mass of the box is 450kg which is drawn at a constant speed along a horizontal surface. The angle between the drawbar and the horizontal surface is 30 degrees. How big is the shear modulus...

A) Gamma Decay B) Beta decay (positron) C) Alpha decay D) Beta Decay (electron)

A magnetic levitation or maglev train rides rails without touching them. How does this work? Include the appropriate magnet drawing in your answer.

A) Physical B) Chemical C) Nuclear D) Phase

the question is mainly about physics i dont really understand it so thats why im asking you

Please let me know if any formula is there that has power and momentum

conceptual physics

A meteor with a mass of 58000 kg falls from an radius of 7.1x10^6 m above the surface of the earth. a) What is the speed of the meteor just before impact with the surface of the...

This is based around gravitational potential energy and kinetic energy but I have no clue what to do.