Given that the skate boarder has a mass of 60 kg and beguine at rest at a height of 8 meters, what is the gravitational potential energy and kinetic energy?

Arock is dropped from a cliff and reaches the ground in 2.70s. at the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second rock cover?

What is an aquifer for science class

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation