What is the kinetic energy of an 80 kg football player running at 8 m/s?

Select ALL that apply A star is held together by: gravity nuclear fission nuclear fusion acceleration

How is the temperature of a gas related to the kinetic energy of its particles? A) As the temperature extends, the kinetic energy of the particles decreases. B) As the temperature increases, the kinetic energy of the particles increases.

Why is salt water a better conductor of electricity than river water?

At the highest price you would expect the demand for service goods and service to be the

What practical function is provided by the ionosphere? Produces auroras charges atoms heats oxygen and nitrogen permits worldwide radio communication

A rock is shot vertically upward from the edge of the top of a tall building. The rock reaches its maximum height above the top of the building 1.60 s after being shot.

Which of the following effects does low nitrogen availability most likely have on the carbon cycle? a. more carbon dioxide is taken up by plants b. carbon dioxide is trapped in the soil around plants c.

If the mass of an object is 300kg and the applied force is 3900N, calculate the acceleration

If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them? A. from the hand to the cup B. from the cup to the hand C. from the cup to the surrounding air D.

Big Al stands on a skateboard at a rest and throws a 0.5-kilogram rock at a velocity of 10.0 m / sec. Big Al moves back at 0.05 m/sec. What is the combined mass of Big Al and the skateboard?