What technology do you think is responsible for giving us these bountiful appliance as well as your handheld gadgets?

Diamond will scratch quartz. true or false

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?

Often called simply "velocity," this is the velocity of an object at a particular moment in time.