Find the tension t in each cable and the magnitude and direction of the force exerted on the strut by the pivot in each of the arrangements in fig. 11.13. in each case let w be the weight of the suspended crate full of priceless art objects. the strut is uniform and also has weight w. start each case with a free body diagram of the strut. a) t=2.6w, 3.28w, 37.6 degreesb) t=4.1w, 5.39w, 48.8 degrees

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.