Give three example of friction

Assume that the Moon is in circular orbit around the Earth. The distance between the Moon and the Earth is approximately 3.56 * 106 km. The period of the Moon's orbit is approximately 28 days. What is the acceleration of the Moon in km / h2?

How do organisms acqire the energy they need to live?

Which is the direction of magnetic field lines inside any magnet?

Which part of a circuit creates an electric force field that makes it possible for the circuit to work? -bulb -buzzer -motor -voltage source

A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 34.9° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.

Basic of Archimedes's principle of how fluid can make body to float and sink.

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 625 m/s in a time of 1.10 ms (milliseconds)

Your boss at the Cut-Rate Cuckoo Clock Company wants to save money on materials. You are asked to reduce the balance wheel, which is cylindrical, dimensions to one-third their original values.

Which of the following conditions is not necessary to observe an interference pattern between two sets of waves? A) The waves must have the same wavelength. B) The waves must have a constant phase difference.

Calculate the change in velocity of 70 kg object being pulled with 1000N force force 10 s