A water park rider (mass = 42.0 kg) starts from rest at the top of a 54.0-m tall water slide (A). The height at B is 24.0 m. Assuming mechanical energy conservation, determine the potential energy (PE) and kinetic energy (KE) values at locations A, B, and C.

Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.