an object with a mass of 125 kilograms is lifted through a height of 10 meters. how much work is done?

If 128 g of material is in the shape of a brick 2 cm wide, 4 cm high, and 8 cm long, what is the density of the material?

If the current flowing into and out of a 9 Volt battery is 1 Ampere, how much work is done by the battery in 10 seconds? that potential difference has units of Volt and 1 Volt = 1 Joules/Coulomb.

A 5.0 kg rock is dropped from the top of a building. The speed of the rock after it has fallen for 2.2 seconds is?

Which of the following has a noticeable gravity, earth, moon, sun, all above

Calculate the momentum of 5.07 kg egg that is dropped from a roof and falls 2 seconds before hitting the ground.

Following an inelastic collision, what can kinetic energy be converted into? Check all that apply. heat impulse momentum potential energy sound

Air has pressure because a. the stratosphere is thick b. air has mass c. wind moves the air d. temperature warms the air

Which of the following values represents an index of refraction of an actual material

What physical characteristic is the same for a particular substance regardless of the sample size.

In the hydrologic cycle, water evaporates into the atmosphere. It then condenses and falls to the ground as precipitation. How can the water return to the atmosphere?