Asteel pipe of 3.5-in. outer diameter is to be used to transmit a torque of 2970 lb·ft without exceeding an allowable shearing stress of 8 ksi. a series of 3.5-in.-outer-diameter pipes is available for use. knowing that the wall thickness of the available pipes varies from 0.25 in. to 0.50 in. in 0.0625-in. increments, choose the lightest pipe that can be used.

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Avalue that describes how heavy an object is and is related to the force of gravity is