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5. A 25 kg box is pushed across the floor at a constant
5. A 25 kg box is pushed across the floor at a constant velocity. If the pushing force is 61 N, what is the coefficient of friction, µ?6. A 15 kg sled is dragged from rest across the snow with a pulli… read more
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1. Imagine you are pushing a cardboard box across the floor
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I have a seven part physics question I am struggling with.
I have a seven part physics question I am struggling with. An 11 kg box is at rest on a level floor. The coefficient of static friction = 1.5 and the coefficient of kinetic friction = 1.4 A) What is t… read more
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4.80 Two blocks M1 and M2 are connected by a mass-less string
4.80 Two blocks M1 and M2 are connected by a mass-less string that passes over a massless pulley (Figure 4.46). M2, which has a mass of 20 kg, rests on a long ramp of angle θ equal to 30°. Friction ca… read more
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A force of 50.0 N is required to start a 7.0 kg box moving
A force of 50.0 N is required to start a 7.0 kg box moving across a horizontal concrete floor. What is the coefficient of static friction? If the same force 50.0 N continues, the box accelerates at 0.… read more
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What force is required to move a 68.4 kg portable ultrasound
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A flywheel, mass 3 kg, outside radius 300 mm, radius of gyration
A flywheel, mass 3 kg, outside radius 300 mm, radius of gyration 212 mm. suspended mass 0.5 kg. The mass is released and falls 0.5 m in 1.5 seconds. calculate: a). tension in the rope. b). frictional … read more
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A horizontal force 70 N acts on mass 5 kg. From rest the distance
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2) a) Consider two forces, one having a magnitude of 10 N,
2) a) Consider two forces, one having a magnitude of 10 N, and the other having a magnitude of 15 N. What maximum net force is possible when combining these two forces? What is the minimum net force p… read more
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1. A Merry-go-Round in an amusement park makes 4 revolutions
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A car accelerates from 30mph to 40mph give an expression for
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........A charge lies of -5 micro-Coulomb with a mass of 20.8
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A charge lies of -7.3 micro-Coulomb with a mass of 16 kg lies
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1. A 1.0 kg mass (mA) and a 4.0 kg mass (mB) are attached to
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a 10kg mass is on an incline of 35 degrees and it is connected
a 10kg mass is on an incline of 35 degrees and it is connected to a pulley that has a 20 kg mass hanging straight down. A) determine the acceleration of the system and the tension in the rope for the … read more
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Imagine that the coefficient of static friction s between ...
Imagine that the coefficient of static friction µs between a 25-kg box and the floor is .55. How hard would you have to push on the box to get it moving? Imagine that you have to exert a horizontal fo… read more
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1. A net force of 3.50 N acts on a 2.75 kg object. What is
1. A net force of 3.50 N acts on a 2.75 kg object. What is the acceleration of the object? 2. Describe the basic concept of Atwood machine. What is the net applied force? What is the mass to which thi… read more
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33.) 1.)A horizontal force of 12N acts on an object that ...
33.) 1.)A horizontal force of 12N acts on an object that rests on a level, frictionless surface on the earth, where the object has a weight of 98N. (a.) what is the magnitude of the acceleration of th… read more
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