A 2.00 kg cart on a frictionless track is pulled by force of 3.00 N. What is the acceleration of the cart?

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?

Current vs. forcewhat type of relationship does this graph show?

Element with 3protons and 5neutrons