In the NASCAR video you learned that race teams try to reduce drag by adding removing all objects that allow air to flow over the car instead of
going through the car. The negative trade off of forcing the air over the car
is that it creates more
to build up in the engine.

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?