An elevator is rising at a constant speed. what forces are acting on the elevator? a. gravity b. air resistance c. gravity and air resistance d. gravity, air resistance, and normal force

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. when your friend hits the water, is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.