A wire with a resistance R is lengthened to 8.56 times its original length by pulling it through a small hole. Find the new resistance of the wire after it was stretched. Answer in units of R.

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

What’s #16 asking me and how do i solve it?

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.