An airplane travels from st louis to portland, oregon in 4.33 hours. if the distance traveled is 2,742 kilometers, what is the airplanes average speed

If the temperature at the surface of earth (at sea level) is 40°c, what is the temperature at 2000 m if the normal lapse rate is 6.4°c/1000 m?

What factors affect kinetic energy?

Superman must stop a 115-km/h train in 160 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 * 105 kg. Determine the force that must be exerted on the train.

How did Andersonville play a role in the civil war?

A kicker punts a football from the very center of the field to the sideline 39 yards downfield. What is the magnitude of the net displacement of the ball?

Which of the following describes subatomic particles? carbon and nitrogen solids, liquids, gases larger than atoms protons, neutrons, and electrons

What is the difference between speed and velocity? A) velocity describes speed with direction. B) there is no difference. C) Velocity describes direction with position. D) Velocity is used in space, while speed is used on earth.

How do you calculate resistance with coulombs, time and J's?

Difference between specific heat capacity and latent heat?

What are artificial magnets and natural magnets? examples