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6.4) Review. Three forces acting on an object are given by
6.4) Review. Three forces acting on an object are given by F: 1 5 (22.00iˆ 1 2.00jˆ) N, F: 2 5 (5.00iˆ 2 3.00jˆ) N, and F: 3 5 (245.0iˆ) N. The object experiences an acceleration of magnitude 3.75 m/s… read more
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A weather balloon is floating at a constant height above
A weather balloon is floating at a constant height above Earth when it releases a pack of instruments.a. If the pack hits the ground with a velocity of 73.5 m/s downward, what distance did the pack fa… read more
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Part (c) Supposed that the floors are evening spaced (with
Part (c) Supposed that the floors are evening spaced (with the ground = 0th floor). At what time does the elevator passes the 9th floor? Part (d) You also happen to have a scale with you for the durat… read more
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Gandalf the wizard throws a palantir (essentially a crystal
Gandalf the wizard throws a palantir (essentially a crystal ball) with a speed of 15 m/s, at an angle of 52.7 degrees. At some time 't' Frodo the hobbit observers the speed of the palantir has slowed … read more
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Inside an elevator, a 63kg student stands on a bathroom
Hi, inside an elevator, a 63kg student stands on a bathroom spring scale that displays its readings in Newtons What magnitude and direction would be needed in order to produce a scale reading of 542N?… read more
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A man of mass = 81 kg steps on a bathroom scale inside an
A man of mass = 81 kg steps on a bathroom scale inside an elevator. The scale reads 399 N. What is the magnitude and direction of the elevator's acceleration (in m/s2)?… read more
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I have a few questions of general physiscs need answering. A
i have a few questions of general physiscs need answering … read more
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A student stands on a bathroom scale in an elevator at rest
A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 836 N. A) As the elevator moves up, the scale reading increases to 935 N, then decreases ba… read more
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A person with a mass of 95 kg is standing on a scale that reads
A person with a mass of 95 kg is standing on a scale that reads weight in newtons inside of an elevator. If the elevator accelerates upward at 3.7 m/s2 , what does the scale read?… read more
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A 160 lb person stands on a bathroom scale in a moving elevator.
A 160 lb person stands on a bathroom scale in a moving elevator. (a) If the reading on the scale is 175 lb, what is magnitude and the direction of the acceleration of the elevator? (b) If the elevator… read more
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Two crates are on the floor next to each other. A man ...
Two crates are on the floor next to each other. A man pushes with a horizontal force of 400 N on the larger crate (mass=50.0kg), which in turn pushes on the smaller crate (mass=25.0kg) so that both sl… read more
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Two ropes are attached to a block with a mass of 75 kg.
Two ropes are attached to a block with a mass of 75 kg. One rope pulls on the block at an angle of 30 degrees to the north of east and exerts a force of 200 N. The second rope pulls an angle of 15 deg… read more
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Consider two blocks pushed along a frictionless surface by
Consider two blocks pushed along a frictionless surface by someone who exerts a constant force with his or her hand. Imagine that block A has a mass of 4.o kg block B has a mass of 2.0 kg and the hand… read more
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A student stands on a bathroom scale in an elevator at ...
A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 836 N. As the elevator moves up, the scale reading increases to 936 N, then decreases back … read more
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A 233 N force is exerted on a crate toward the north and ...
A 233 N force is exerted on a crate toward the north and the 143 N force is exerted toward the east. Find the magnitude and direction of the net force. ______N ______° north of east Calculate the forc… read more
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Your hand exerts a 6.4 N upward force on a pound of sugar.
Your hand exerts a 6.4 N upward force on a pound of sugar. Considering the force of gravity on the sugar, what is the net force on the sugar? Give the magnitude and direction. _____N A 68 kg swimmer s… read more
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The instruments attached to a weather balloon have a mass ...
The instruments attached to a weather balloon have a mass of 4.6 kg. The balloon is released and exerts an upward force of 100 N on the instruments. (a) What is the acceleration of the balloon and ins… 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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