Author Question: Static charge can build up quickly on an object ________. a. during days when the conditions are ... (Read 50 times)

NguyenJ · **on:** Jul 28, 2018

Static charge can build up quickly on an object ________.
a. during days when the conditions are not humid
b. when the object is in good electrical contact with the ground
c. only when it is in contact with a good conductor
d. only when the object is moving

Question 2

A 4.0-kg block is pushed up a 36 incline by a force of magnitude P applied parallel to the incline. When P is 31 N, it is observed that the block moves up the incline with a constant speed. What value of P would be required to lower the block down the incline at a constant speed?
a. 27 N
b. 15 N
c. 13 N
d. 17 N
e. 19 N