A brass bar has a length of 1.0 m when at 40 0 Celsius. How much stress in newton is needed to keep it at this length if the temperature is increased to 500 Celsius Constant for brass: Y = 100 gigameter Coefficient of expansion = 19 micrometers?

What happens in a global convection cell

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

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.