An airplane travels 8 km in 10 minutes and then 100 km in 20 minutes. What is the average speed?

What is a pulley system?

If the force of gravity changes, what happens to the weight of an object?

Car drag racing takes place over a distance of a mile (402 m) from a standing start. If a car (mass 1600 kg) could be propelled forward with a pulling force equal to that of gravity, what would be the change in kinetic energy and the terminal speed

Which of these are made up of matter? Check all that apply.

Which of the following types of pollution is NOT linked to coal-burning power plant emissions? A) acid rain B) global warming C) ozone hole D) smog

Which vocabulary term is survival of the fittest

An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s2?

At what stage of a reaction do atoms have the highest energy? a. reactant stage b. product stage c. transition state stage d. The stage of highest energy depends on the atom.

A moon with a mass of 6.0 x 10 kg orbits about a planet with a mass of 5.0x 10^24 kg. They are 4.0 x 10^8 meters apart What is the gravitational force between them? The answer is 1.

What is the expression of the chemical composition of a compound?