A block is sitting on a platform 20 m high. It weighs 50 kg. How much potential energy does it contain?

Which of the following provides evidence that geologic activity occurred in the past on Earth's Moon? a) the revolution of the Moon around the Earth b) the axial tilt of the Moon c) the phases of the Moon d) the presence of solidified lava flows on

How could a natural event, like an earthquake, make it difficult to use the law of superposition

If an object does not move, there is no work done? True or false?

2. If it takes Ashley 3 seconds to run from the batter's box to first base at an average speed of 6.5 meters per second, what is the distance she covers in that time?

The electric potential inside an object made from a conducting material is

What property indicates a star's temperature? A size B color C composition D brightness i forgot lol

Locomotor movement applies to which of the following motions running squatting bending twisting

Which of the following is a feature of the sun's radiation? A. It cannot travel through air. B. It cannot travel through vacuum. C. It is made up of rays of the same frequency. D. It is made up of rays of different wavelengths.

determine the pressure exerted on the surface of a submarine cruising 175 ft below the free surface of the sea. assume that the barometric pressure is 14.7 psia and the specific gravity of seawater is 1.03.

9. An astronaut of mass 90 kg walks in space outside her spaceship and receives a 30-N force from a nitrogen spurt gun. What acceleration does she experience?