Gravity on earth is 9.8m/s^2, and gravity on the moon is 1.6 m/s^2. So if the mass of an object on earth is 40 kilograms, it's mass on the earth is what?

A nova occurs when A. a massive star experiences collapse of its iron core and explodes. B. binary black holes radiate energy away as gravity waves, spiral in, and collide. C.

What is the potential energy of a bowling ball as it sits on a 40 meter tall building

A long pipe of outer radius R 1 = 3.70 cm and inner radius R 2 = 3.15 cm carries a uniform charge density of 1.22 mC/m 3.

An asteroid, whose mass is 3.6 * 10-4 times the mass of Earth, revolves in a circular orbit around the Sun at a distance that is 1.6 times the Earth's distance from the Sun. (a) Calculate the period of revolution of the asteroid in years.

As an object falls in a gravitational field, its speed increases. This is an example of potential energy transforming into what? A. chemical potential energy B. electrical potential energy C. elastic potential energy D. kinetic energy

Which change occurs when an atom undergoes decay?

A wave is moving toward shore with a velocity of 18.0 m/s. If its period is 4 s, what is its wavelength? Explain your answer.

Describe how the Catapult works?

Anything dissolved in water

Length of two cylinders are measured to be L1 = 5.62 + / - 0.01cm and L2 = 4.34 + / - 0.02cm. calculate difference in error and error limit.