Jack D. Ripper flipped out after missing a Must-Do-It question for the third time on his Minds On Physics assignment. Outraged by the futility of his efforts, he flings a 4.0-gram pencil across the room. The pencil lodges into a 221.0-gram Sponge Bob doll which is at rest on a countertop. Once in motion, the pencil/doll combination slide a distance of 11.9 cm across the countertop before stopping. The coefficient of friction between the doll and the countertop is 0.325. Determine the speed at which the pencil is moving prior to striking Sponge Bob.

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A: Mass of the arrow is m = 0.01 kg Mass of the wooden block is M = 8.6 kg Length of the string is h =…

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A: Given: The mass of the blue ball is 1024 kg. The position is 2.1x106 m. The radius of the planet is…

Q: 1a. Johnny is pulling a cart (10 kg) to the left with a force of 50 N. There is a force of friction…

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Q: are

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Q: cat of 20 kg mass is running at 8.0 m/s toward a stationary skateboard with a mass of 2 kg. The cat…

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Q: A hockey puck (mass = 1 kg) leaves the players stick with a speed of 30 m/s and slides on the ice…

A: Magnitude of acceleration is, a=v22s=30 m/s22100 m=4.5 m/s2

Q: In figure 198, four charges, q each, are kept fixed on the vertices of a square of side la√2 cm. A…

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Q: The highest spot on Earth is Mt. Everest, which is 8850 m above sea level. If the radius of the…

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A: M=70kgm=3 kgu2=8 m/s let the speed attained by the skater be u1

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Q: A 0.06kg bullet has a speed of 800m/s before it strikes a 1.06kg wooden block that is stationary on…

A: Given data The mass of the bullet is m=0.06 kg The mass of the block is M=1.06 kg The initial speed…

Q: A team of astronauts is on a mission to land on and explore a large asteroid. In addition to…

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Q: -speed winds around a tornado can drive projectiles into trees, building walls, and even metal…

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Q: The figure below shows four spheres at the corners of a rectangle, connected by rods of negligible…

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Q: At what speed does an object move so that its mass is 10% greater?

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Q: 134. Astronomy About 65 million years ago an aster- oid struck Earth in the area of the Yucatan…

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A: why the grain of pollen will reach a limiting speed in its free fall.

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A: mass of Barbara (m) = 49 kg mass of James (M) = 83 kg Length of rope (L) = 24 m

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Q: Problem 1. Part (a) You are in deep outer space, far away from any massive objects. You have two…

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Q: A 791 N man stands in the middle of a frozen pond of radius 9.0 m. He is unable to get to the other…

A: From conservation of momentum, the speed of the person,

Q: Suppose that you plot the mass (y-axis, in g) versus volume (x-axis, in cm3) of 4 different…

A: The plot for slope of above data is shown below,

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.