Nuclear decay occurs according to first-order kinetics. cobalt-60 decays with a rate constant of 0.131 years–1. after 5.00 years, a sample has a mass of 0.302 g. what was the original mass of the sample?

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

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?

Decreased sensitivity to an unchanging stimulus is known as