Ashopping cart slows as it moves along a level floor. which statement describes the energies of the cart?
(1) the kinetic energy increases and the gravitational potential energy remains the same.
(2) the kinetic energy increases and the gravitational potential energy decreases.
(3) the kinetic energy decreases and the gravitational potential energy remains the same.
(4) the kinetic energy decreases and the gravitational potential energy increases.

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?