A 1.2 kg block slides along a frictionless surface at 1.2 m/s. a second block, sliding at a faster 4.4 m/s, collides with the first from behind and sticks to it. the final velocity of the combined blocks is 3.2 m/s.

A 100 kg gymnast comes to a stop after tumbling. her feet do - 5000J of net work to stop her. Use the work-kinetic energy theorem to find the girl's initial velocity when she began to stop?

When the internal energy of material increase?

You are standing in an elevator that is accelerating upward at 1m/s². Which of the following pairs of forces is an action-reaction pair that has to be exactly equal and opposite to each other?

If the angular momentum of an object increases, which of these could be true? A. the angular velocity of the object decreased. B. The mass of the object decreased. C. The momentum of inertia increased. D. The object's momentum of inertia decreased.

Janice has been considered artistic since she was 3 years old. She became a professional graphic designer, and after she retired, she took up painting. She has also learned a lot throughout her life.

If a car goes along a straight road heading east and speeds up from 45 ft/s to 60. ft/s in 5 sec, calculate the acceleration

To generate higher profit margins, producers must work to increase their total supply. increase their total expenses. decrease their customer base. decrease their production costs

Solar energy isn't usually used as the only power source for a reason because what

What particle can be stopped by skin

What was significant about the atomic theory that democrituis proposed?