A 55 kilogram cliff jumper dives freely from a cliff 10 meters above the surface of the water. 1. Draw a picture of this:
2. When she is 1.6 meters above the water, what is her Gravitational potential energy?
3. When she is 1.6 meters above the water, what is her Kinetic energy

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

The air that we breath is made mostly of which gaseous molecule

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.