show that the value of g is independent to the mass of the free falling body. The weigh of the person on the earth is 72 kg wt, at what height it weight becomes 32kg wt?

Imagine that you have collided carts on an air-track to investigate conservation of momentum. Your results show that momentum after a collision is usually a little less than the momentum before.

Why might a volcanic eruption lead to cooler temperatures over a large area around the volcano

The molecules in which of the following have the greatest average molecular kinetic energy?

Which side of continents have a colder climate than might be expected?

Which of the following statements is true? A. Fusion splits atoms. B. Uranium 235 is produced from fission. C. The heat from stars is created by fusion. D. Enrico Fermi created the first nuclear bomb.

The amount of force needed to keep a 0.1kg basketball moving at a constant speed of 6 m/s on frictionless ice is ___ N

What three forms of kinetic energy can a polyatomic molecule have?

A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she deceler - ates at 2.0 m/s2. She reaches the ground with a speed of 3.0 m/s.

Why the weight of a body decreases with increases in distance from the earth's surface

On a fishing trip Justin rides in a book 12 km south. The fish aren't biting so they go for kilometers west. They then follow a school of fish 1 km north. What distance did they cover? What was their displacement?