Energy conversion for a man stepping off a cliff

A 4000 kg elevator rises from the basement to the top of a100-m tall building. Which of the following is closest to the network done on the elevator as it rises through the middle 20m of itstrip at a constant velocity? Use g=10m/s^2. A.) 800,000 J B.

What kind of animals might benefit from a locust swarm

Chanel has some cotton candy that came in a cloudy shape. She wants to make it more dense. Which describes the candy before and after Chanel manipulated it?

Why it is necessary to correct for the heat capacity of your calorimeter?

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.27 times a second. A tack is stuck in the tire at a distance of 0.393 m from the rotation axis.

Why is objectivity important in science

Which scientist's work led to our understanding of how planets move around the Sun?

The process of gathering information through the senses is called what?

Are earths surface is made up of plates the move. And why

What fundamental frequency would you expect from blowing across the top of an empty soda bottle that is 24 cm deep, if you assumed it was a closed tube? The speed of sound in air is 343 m/s.