If two objects collide and stick together, what must increase? A. the acceleration due to gravity B. the friction between the two objects C. the force of gravity between the objects D. the two objects' momentum

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy