Ever tried to stop a 150-pounds (68 kg )cannonball fired towards you at 30 mph (48 km/hr)? No, probably not. but you have tried to brace yourself in a car collision. How are the two situations similar?

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy

What caused magnetic fields? what happens if you keep breaking a magnet in two until you reach a single atom?

Roberto and laura are studying across from each other at a wide table. laura slides a 2.2 kg book toward roberto. if the net force acting on the book is 1.6 n to the right, what is the book acceleration