A piston, A, as shown at right, has a diameter of 0.64 cm. A second piston, B, has a diameter of 3.8 cm. Determine the force, F, necessary to support the 500.0 N weight
in the absence of friction.

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

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?