Avertical scale on a spring balance reads from 0 to 160 n . the scale has a length of 11.5 cm from the 0 to 160 n reading. a fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.95 hz .

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

If a balloon is taken outside on a very cold day, what will occur?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final