. A pencil standing upright on its eraser end falls over and lands on a table. As the pencil falls, its eraser does not slip. The following questions refer to the contact force exerted on the pencil by the table. Let the positive x direction be in the direction the pencil falls, and the positive y direction be vertically upward. (a) During the pencil’s fall, is the x component of the contact force positive, negative, or zero? Explain. (b) Is the y component of the contact force greater than, less than, or equal to the weight of the pencil? Explain and labled the problem.

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A: Draw the components of the forces F1  and F2.

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Q: ng on the 2.0 kg block. ce F. by the 5.0 kg block on the 2.0 kg block.

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Q: A person with a mass of m balances on a rope, standing still. The rope is inclined at an angle of…

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Q: The figure below shows a bird feeder that weighs 152.3 N. The feeder is supported by a vertical…

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Q: A 7 kg block is resting on a horizontal tabletop. A 3 kg block is on top of the 7 kg block. An…

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Q: The figure below shows an overhead view of a lemon half and two of the three horizontal forces that…

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Q: A 1.90 kgkg textbook rests on a frictionless, horizontal surface. A cord attached to the book passes…

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Q: A new Dutchman Day activity allows people to leap from the top of the Humanities building onto a…

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.