Which of these is an example of solar energy? a) heating a pot of water on a stove b) heating water in the sun to make tea eliminate c) cooling a house with an electric fan d) cooling a house by pulling down shades

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward