Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6, Problem 28SP
Suppose that a 100-kg crate is to be raised 20.0 m into the air by a crane. How much work will be done on the crate?
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Chapter 6 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 6 - 24. A force of 3.0 N acts through a distance of 12...Ch. 6 - 25. A box is pulled across a level floor a...Ch. 6 - 26. An automobile is pushed 10.0 ft by a woman...Ch. 6 - 27. A steady force of 500 N is applied...Ch. 6 - 28. Suppose that a 100-kg crate is to be raised...Ch. 6 - 29. A 10.0-kg flowerpot falls off a windowsill...Ch. 6 - 30. How much work in total must a 200-lb man do...Ch. 6 - 31. A 4.0-kg object is lifted 1.5 m. (a) How much...Ch. 6 - 32. A uniform rectangular marble slab is 3.4 m...Ch. 6 - 33. How large a force is required to accelerate a...
Ch. 6 - 34. A 1200-kg car going 30 m/s applies its brakes...Ch. 6 - 35. A proton (m = 1.67 × 10−27 kg) that has a...Ch. 6 - 36. A 200-kg cart is pushed slowly at a constant...Ch. 6 - 6.37 [II] Repeat Problem 6.36 if the distance...Ch. 6 - 38. A 50 000-kg freight car is pulled 800 m up...Ch. 6 - 39. A 60-kg woman walks up a flight of stairs that...Ch. 6 - 40. A pump lifts water from a lake to a large tank...Ch. 6 - 41. Just before striking the ground, a 2.00-kg...Ch. 6 - 42. A 0.50-kg ball falls past a window that is...Ch. 6 - 43. At sea level a nitrogen molecule in the air...Ch. 6 - 44. The coefficient of sliding friction between a...Ch. 6 - 6.45 [II] Consider the simple pendulum shown in...Ch. 6 - 46. A 1200-kg car coasts from rest down a driveway...Ch. 6 - 47. The driver of a 1200-kg car notices that the...Ch. 6 - 48. A 2000-kg elevator rises from rest in the...Ch. 6 - 49. Figure 6-8 shows a bead sliding on a wire. How...Ch. 6 - 50. In Fig. 6-8, h1 = 50.0 cm, h2 = 30.0 cm, and...Ch. 6 - 51. In Fig. 6-8, h1 = 200 cm, h2 = 150 cm, and at...Ch. 6 - 6.52 [I] Imagine a 60.0-kg skier standing still on...Ch. 6 - 53. Considering the skier in the previous problem,...Ch. 6 - 6.54 [II] Considering the skier in the previous...Ch. 6 - 55. A 10.0-kg block is launched up a 30.0°...Ch. 6 - 56. Calculate the average power required to raise...Ch. 6 - 57. Compute the power output of a machine that...Ch. 6 - 58. An engine expends 40.0 hp in propelling a car...Ch. 6 - 6.59 [II] A 1000-kg auto travels up a 3.0 percent...Ch. 6 - 60. A 900-kg car whose motor delivers a maximum...Ch. 6 - 6.61 [II] Water flows from a reservoir at the rate...Ch. 6 - 6.62 [II] Find the mass of the largest box that a...Ch. 6 - 6.63 [II] A 1300-kg car is to accelerate from rest...
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- A 0.20-kg ball is thrown upward. How much work is done on the ball by gravity as the ball rises between heights of 2.0 m and 3.0 m?arrow_forwardA rope having a total mass of 0.4 kg and total length 4 m has 0.6 m of the rope hanging vertically down off a work bench. How much work must be done to place all the rope on the bench?arrow_forwardA mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance?arrow_forward
- What is the dominant factor that affects the speed of an object that started from rest down a frictionless incline if the only work done on the object is from gravitational forces?arrow_forwardCite two examples in which a force is exerted on an object without doing any work on the object.arrow_forwardA boy throws a ball of mass 0.25 kg straight upward with an initial speed of 20 m/s When the ball returns the boy, its speed is 17 m/s How much much work does air resistance do on the ball during its flight?arrow_forward
- A 75.0-kg person climbs stairs, gaining 2.50 meters in height. Find the work done to accomplish this task.arrow_forwardA particle of mass 2.0 kg moves under the influence of the force F(x)=(5x2=7x)N . Suppose a frictional force also acts on the particle. If the particle’s speed when it starts at x=4.0 m is 0.0 m/s and when it arrives at x=4.0 m is 9.0 m/s, how much work is done on it by the frictional force between x=4.0 m and x=4.0 m?arrow_forwardA sled of mass 70 kg starts from rest and slides down a 10 incline 80 m long. It then travels for 20 m horizontally before starting back up an 8° incline. It travels 80 m along this incline before coming to rest. What is the magnitude of the net work done on the sled by friction?arrow_forward
- Compare the work required to stop a 100-kg crate sliding at 1.0 m/s and an 8.0-g bullet traveling at 500 m/s.arrow_forwardThe surface of the preceding problem is modified so that the coefficient of kinetic friction is decreased. The same horizontal force is applied to the crate, and after being pushed 8.0 m, its speed is 5.0 m/s. How much work is now done by the force of friction? Assume that the crate starts at rest.arrow_forwardA particle moving in the xy -plane is subject to a force F(x,y)=(50Nm2)(xi+yj)( x 2 + y 2 )3/2 , where x and y are in meters. Calculate the work done on the particle by this force, as it moves in a straight line from the point (3 in, 4 m) to the point (8 in, 6 in).arrow_forward
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Mechanical work done (GCSE Physics); Author: Dr de Bruin's Classroom;https://www.youtube.com/watch?v=OapgRhYDMvw;License: Standard YouTube License, CC-BY