Do you think that rubbing two pieces of woods together would have more or less friction than wood rubbing against smooth metal? why?

On April 15, 1912, the luxury cruise liner Titanic sank after running into an iceberg. What was the cruise liner's speed when it collided with the iceberg if it had a mass of 4.23 x 108 kg ship and a momentum of 4.9 x 109 kg·m/s?

What will a thermometer show if placed next to a beaker containing an endothermic reaction

A 81 kg block is released at a 3.8 m height. the track is frictionless. the block travels down the track, hits a massless spring constant k=1888. calculate the average force

What is the force the machine exerts on an object

What is the relation between energy and amplitude of a light wave, if amplitudes a factor in energy?

A radio wave has a wavelength of 300 m. The wave moves with a speed of 3.0 * 108 m/s. What is the frequency of the radio wave? A. 1.0 * 106 Hz B. 1.0 * 10-5 Hz C. 1.0 * 10-6 Hz D. 1.0 * 105 Hz

What is the momentum of a 0.145 kg baseball traveling at 40.0 m/s

To analyze the motion of a body that is traveling along a curved path, to determine the body's acceleration, velocity, and position. A motorcyclist travels around a curved path that has a radius of 250 ft.

You walk with a velocity of 2 m/s north. You see a man approaching you, and from your frame of reference he has a speed of 3 m/s to the south.

Imagine you are holding an apple. Does this apple have energy? how do you know?