What are the two major characteristics that change when air is heated and cooled? How do these characteristics change the movement of air?

A girl who is watching a plane fly tells her friend that the plane isn't moving at all. Describe a frame of reference in which the girl's description would be true

When work is done and a force is transferred which choice describes the movements of the object?

A boy of mass 60 kg stands on a boat of mass 250 kg. This system is stationary. From the boat, the boy throws a rock of mass 1 kg into the water with a velocity of 10 m/s.

True or false The Coriolis effect is caused by the jet stream.

An engine manufacturer makes the claim that the engine they have developed will, on each cycle take 100 J of heat out of boiling water at 100 °C, do mechanical work of 80J, and exhaust 20 J of heat at 10 °C.

The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m3. Convert this volume to liters and express the result in standard exponential notation?

What landform is created when magma squeezes between rock layers to form a hardened slab of rock? a. volcanic neck b. dike c. lava plateau d. sill

A 200 N wagon is to be pulled up a 30 degree incline at constant speed. how large a force parallel to the incline is needed if friction is negligible?

The temperature of 1 m^3 of water is decreased by 10°C. If this thermal energy is used to lift the water vertically against gravity, what is the change in height of the center of mass?

If the net torque is zero, what does this imply about the clockwise and counterclockwise torques.