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never [62]
2 years ago
12

An object is moving at a velocity of 14 m/s. It accelerates to a velocity of 48 m/s over a time

Physics
1 answer:
Tju [1.3M]2 years ago
5 0

Answer:

.

Explanation:

..

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A 1.0 m string with a 5 g stopper on the end is whirled in a vertical circle. The speed of the stopper is 8 m/s at the top of th
Andrew [12]

Answer:

Explanation:

A )

At the bottom of the circle , the potential energy of the stopper is converted into kinetic energy

1/2 m V² = mg x 2r + 1/2 mv²

m is mass of stopper , V is velocity at the bottom , r is radius of the circular path which is length of the string , v is velocity at the top

1/2  V² = g x 2r + 1/2 v²

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B )

If T be the tension at the top

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mg +T = mv² / r

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= .27 N .

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Net force = T  - mg , T is tension at the bottom , V is velocity at bottom

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3 years ago
A motorist inflates the tires of her car to a pressure of 180 kPa on a day when the temperature is -8.0° C. When she arrives at
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Apply Gay-Lussac's law:

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