Define mechanical energy. using the example of the pendulum, explain how kinetic and potential energy relate to the mechanical energy at different positions.

What is the subscript for oxygen in its molecular formula

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.