g A 30.0-N stone is dropped from a height of 20.0 m, and strikes the ground with a velocity of 7.00 m/s. What average force of air friction acts on it as it falls

Apossible explanation for a set of facts that can be tested by further investigation is called

Which changes of state do the labels represent? a: b: c:

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.