A certain spherical asteroid has a mass of 7.2 * 1016 kg and a radius of 8.8 km. what is the minimum speed needed to escape from the surface of this asteroid?

An object is thrown off a cliff with a horizontal speed of 10 m/sec. After 3 seconds the object hits the ground. Find the height of the cliff and the total horizontal distance traveled by the object. a. What do you know? b.

You are given two balls that are made from the same rubber. They are also the same size and color. One is hollow and one is solid. Give three physical properties that could be used to identify the ball that is solid

The energy of motion is called A. kinetic energy. B. potential energy. C. thermal energy. D. work.

A vacuum gage connected to a chamber reads 44 kPa at a location where the atmospheric pressure is 92 kPa. Determine the absolute pressure in the chamber. (Round the final answer to the nearest whole number.

State the objects in the universe that give out their own light

Approximately how much electrical energy does a 5-W light bulb convert to radiant or thermal energy in one hour

If a clock expends 2 W of power from a 1.5 V battery what amount of current is supplying the clock?

The rectangular plates in a parallel-plate capacitor are 0.063 m * 5.4 m. A distance of 3.5 * 10-5 m separates the plates. The plates are separated by a dielectric made of Teflon, which has a dielectric constant of 2.1.

What connection does salt have with acids and bases?

All of the following are types of telescope except