What is the ideal mechanical advantage of a lift that allows you raise a 90.0-kg refrigerator with 80.0 N of force? a. 11
b. 7.2
c. 72
d. 1.1​

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration