If a hypothesis is additional tests should be done to ensure accurate results.
a. correct
b. incorrect
c. unknown
d. inconclusive

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

What is the magnitude of the resultant vector round your answer to the nearest tenth

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.