If luis pulls straight down on the end of a wrench that is tilted θ = 30∘ above the horizontal and is r = 33 cm long, what force must he apply to exert a torque of -13 n⋅m ?

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

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

Explain what happens at the saturation point when adding salt to water at room temperature.