Will a cart rolling up and down a ramp have a faster or slower acceleration than a ball being thrown straight up into the air? (assume up the ramp is positive and the origin is the starting point of the cart)

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?