What is the acceleration of a 53.9 kg person, who is standing in an elevator on a scale that reads 439 N? Answer in units of m/s2 and include all necessary work, as well as a free body diagram. Help with all of it pls

Which atomic model was proposed as a result of j. j. thomson’s work?

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

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and