12. In the diagram below, what is the current through the lamp when the
pen; when the switch is closed? (Hint: you can just use Ohm's
law here]

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c