An 2-kg object is moving horizontally with a speed of 4m/s. how much net force os required to keep the object movong with the same speed and in the same direction

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.