An elephant lifts 7 large logs from the ground to a container 5 meters above the ground as part of a zoo demonstration. the elephant exerted a force of 250 newtons to lift each log. how much work did the elephant do altogether? a. 1250 j b. 1750 j c. 7880 j d. 8750 j

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

If the area of a square has increased by a factor of 16, by how much has each side increased?