You did 150 joules of work lifting a 75 newton backpack. How high did you life the backpack?

What happens because of nuclear fusion?

Hypothesize about human impact on each of earth systems

Which disease is caused when the body tissues cannot get enough oxygen?

A person begins to run at a velocity of 13 mph. This takes the person 10 minutes. What is the acceleration of the person for 10 minutes?

Determine which will change if you turn up a radio's volume: wave velocity, intensity, pitch, frequency, wavelength, loudness.

With your bare feet, stand with one foot on a rug, and the other foot on a tile, linoleum, or wood floor. Which one feels colder? Which one is really colder? Explain what is going on in a paragraph.

A firewoman dropped a person onto the safety net. Right before the person hit the net he had a velocity of 11.2 m/s and 1800 J of kinetic energy. What was the mass of the person?

What causes standing wave?

If you lived downhill from a volcano and lava started to flow toward your home what could happen?

A battleship simultaneously fires two shells toward two identical enemy ships. One shell hits ship A, which is close by, and the other hits ship B, which is farther away. The two shells are fired at the same speed.