A 1904 kg car has a speed of 12 m/s when it hits a tree. The tree doesn't move and the car comes to rest.

Find the change in kinetic energy of the car. Answer in units of J.

What is the momentum of a 3kg bowling ball moving at 3m/s?

How can you make the work output of a machine greater than the work input

A stone is thrown horizontally at a velocity of 12.90 m/s from a tree house that is located 73.2 m above the ground in a beautiful redwood tree. What is the stone's horizontal component of velocity just before it hits the ground?

A gas occupies 210 ml at - 73c. To have the same gas occupy 360ml, should the temperature be increased or decreased

In order for an object to accelerate, must be applied.

A linearly-polarized electromagnetic (EM) wave has an electric field with amplitude 1000 V/m. You hold a a linear polarizer in front of it and rotate the polarizer so that all of the EM wave is blocked. You then rotate the polarizer 30 degree.

Let y'=4 x. find all values of r such that y = rx^{2} satisfies the differential equation. if there is more than one correct answer, enter your answers as a comma separated list.

What are the starting materials for nuclear fission

Why is it possible to throw a 0.145 kg baseball much further than a 7 kg bowling ball?

What is the name of the force that opposes or slows down the motion of objects