If the average force exerted by peristalsis is 0.14 N, how much work does the small intestine do to move food along its entire length? Express your answer to two significant figures and include appropriate units.

If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance