An is the conducting connection between electrical equipment or an electrical circuit and the earth

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology