a spring of length is 5.03 is stretched by a load of 50kg to 6.14m, determine 1) the strain in the spring, 2) the young modulus, if the crossectional area of the spring is 3.5m 3) the energy stored in the spring (g 10m/s)​

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

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

Match each scenario to the form of energy it represents