What is the acceleration of softball if it has a mass of 5 kg and hits the catcher's glove with a force of 25 N?

Most of the volume of an atom is occupied by the

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.

What does every magnet possess? a. iron metal b.strong magnetic field c.repulsion d.north and south poles