Each of two small spheres is charged positively, the total charge being 52.6 µc. each sphere is repelled from the other with a force of 1.19 n when the spheres are 1.94 m apart. calculate the charge on each sphere

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?