Joey finds a treasure chest packed with metallic coins. the chest has a volume of 1.5 \text{ m}^31.5 m 3 1, point, 5, start text, space, m, end text, cubed. the coins have a total mass of 16,950\text{ kg}16,950 kg16, comma, 950, start text, space, k, g, end text. hoping to find gold, he calculates the density to determine the metal of the coins.

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?