1. A 0.175-lb ball is thrown upward with an initial velocity of 75.0 ft/s. What is the maximum height reached by the ball? 2. A pile driver falls a distance of 1.75 m before hitting a pile. Find its velocity as it hits the pile. 3. A sandbag is dropped from a hot air balloon at a height of 125 m above the ground. Find its velocity as it hits the ground. Disregard air resistance. 4. An ironworker...

1. A 10.0-kg mass has a potential energy of 10.0 J when it is at what height? 2. A 10.0-lb weight has a potential energy of 20.0 ft lb at what height? 3. At what speed does a 1.00-kg mass have a kinetic energy of 1.00 J? 4. At what speed does a 10.0-N weight have a kinetic energy of 1.00 J?

1. A 110-Ω resistance coil draws a current of 5.00 A. What power is used? 2. What power is used by a heater with resistance 19.5 Ω and that draws a current of 5.55 A? 3. Vp = 30.0V Vs = 45.0V Ns = 15.0 turns Find Np 4. Vp = 250V Np = 730 turns Ns = 275 turns Find Vs 5. Ip = 6.00A Is = 4.00A Vp = 39.0V Find Vs 6. A step-up transformer on a 115-V line provides a ...

1. A 12,000-N load is hanging from a steel cable that is 10.0 m long and 16.0 mm in diameter. Find the stress. 2. A rectangular cast-iron column 25.0 m x 25.0 cm x 5.00 m supports a weight of 6.80 x 106 N. Find the stress in pascals on the column.

1. A 3.00-m-long plank is used to raise a cooling unit 1.00 m. What is the MA of the ramp made by the plank? 2. A 2.75-m-long board is used to slide a compressor a vertical distance of 0.750 m. What is the MA of the ramp made by the board?

1. A 55,000-kg truck rounds a curve at 62.0 km/h. If the radius of the curve is 38.0 m, what is the centripetal force on the truck? 2. The radius of a curve is 27.5 m. What is the centripetal force on a 10,000-kg truck going around it at 35.0 km/h?

1. A 75 percent-owned subsidiary should not be consolidated when: a. Its operations are dissimilar from those of the parent company b. Control of the subsidiary does not lie with the parent company c. T here is a dominant noncontrolling interest in the subsidiary d. M nagement feels that consolidation would not provide the most meaningful financial statements 2. An 80 percent owned subsidiary...

A 90-N board 12 m long rests on two supports, each 1 m from the end of the board. A 360-N block is placed on the board 3 m from one end as shown in Figure. Find the force exerted by each support on the board.

1. A ball is thrown downward from the top of a building at a speed of 75 ft/s. Find its velocity as it hits the ground 475 ft below. Disregard air resistance. 2. Find the maximum height reached by a ball thrown upward at a velocity of 95 ft/s.