Asinusoidal wave travels along a string. if the time for a particular point to move from maximum displacement to zero displacement is 0.17 sec, what are the period and frequency? if the wavelength is 1.4 m what is the velocity?

Hydrogen and helium are both members of?

The two required components for a generator are

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