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Zielflug [23.3K]
3 years ago
10

A pulley with a mechanical advantage of 5 will require you to pull _____ times the amount of rope.

Physics
1 answer:
Marat540 [252]3 years ago
6 0

Answer:

It will require a force of 1/5, answer A.

Explanation:

In the attached image we can see an example of an array of pulleys that will lift a 100 kg-f load.

If we analyze pulleys A,B, and C as in the image we can check a force in the cable of 20kg-f.

In the pulley D we have three forces of 20 kg-f each and those forces plus the forces in the pulley B, sum a total of 100 kg-f (60+40). This matches the mechanical advantage (100/5) = 20 kg-f

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Answer:

The weight of an object is the force on it caused by the gravity due to the planet. The weight of an object and the gravitational field strength are directly proportional. For a given mass, the greater the gravitational field strength of the planet, the greater its weight.

Weight can be calculated using the equation:

weight = mass × gravitational field strength

This is when:

weight (W) is measured in newtons (N)

mass (m) is measured in kilograms (kg)

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3 years ago
Define scalar and vector
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2 years ago
What is the magnitude of the velocity of a 25 kg mass that is moving with a momentum of 100 kg*m/s?
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Answer:

v= 4 m/s

Explanation:

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Let's replace what we know and solve for whatever's left

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7 0
3 years ago
After washing lettuce, you can dry the water from it using a salad spinner. You put the lettuce in the bowl, and then crank the
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A. The force that causes the water on the lettuce to come off the lettuce and go to the walls of the bowl is centrifugal force.

<h3>What is centrifugal force?</h3>

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This is force that acts on a body moving in a circular path and is directed towards the center around which the body is moving.

While centripetal force is directed towards to the center, the centrifugal force is directed away.

Thus, the force that causes the water on the lettuce to come off the lettuce and go to the walls of the bowl is centrifugal force.

Learn more about centrifugal force here: brainly.com/question/20905151

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6 0
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Answer:

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Explanation:

5 0
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