A 90.0 kg man climbs hand over hand up a rope to a height of 9.47 m. How much potential energy does he have when he reaches the top?

Why do things burn up when they enter the atmosphere?

How far away is a RR Lyrae variable star if it has a period of 0.5 days and a brightness of 2.3 x 10^-11 W/m^2?

A fixed amount of ideal gas is held in a rigid container that expands negligibly when heated. At 20°C the gas pressure is P. If we add enough heat to increase the temperature from 20°C to 40°C, the pressure will be: A. equal to 2P B. less than 2P C.

According to all known laws of aviation, there is no way a bee should be able to fly. Its wings are too small to get its fat little body off the ground. The bee, of course, flies anyway because bees don't care what humans think is impossible.

Sound waves can't travel through A. an elastic material. B. a liquid. C. a vacuum. D. a solid.

What is root-mean-square current?

Which of these is an element? O carbon O air O carbon dioxide water

What could result if the liver was not working properly?

A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s. What is the distance between the flying bullets?

A runner with a mass of 75kg runs 6m/s calculate the kinetic energy stored in the runner