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torisob [31]
2 years ago
6

A 0. 75-kg ball is attached to a 1. 0-m rope and whirled in a vertical circle. The rope will break when the tension exceeds 450

n. What is the maximum speed the ball can have at the bottom of the circle without breaking the rope?
SAT
1 answer:
8090 [49]2 years ago
7 0

At the bottom of the circle, the ball is being pulled upward by tension in the rope and downward by its own weight, so that the net force on it is

∑ F = 450 N - (0.75 kg) g = (0.75 kg) a

where a is centripetal acceleration. At this maximum tension, the ball has a maximum centripetal acceleration of

a = (450 N - (0.75 kg) g) / (0.75 kg) = 590.2 m/s²

Then its maximum tangential speed v is such that

a = v² / (1.0 m)

⇒   v = √((1.0 m) a) ≈ 25 m/s

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Based on your research, you need to budget $275 for insurance and gasoline if you choose to buy or lease the new car and If you choose to buy the used car, you need to budget $225 for insurance and gas.

<h3>What is budget?</h3>

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It is known to be often used by governments, businesses, and individuals and research has shown that a person needs to  budget $275 for insurance to buy or lease the new car.

See full question below.

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buy or lease the new car.

If you choose to buy the used car, you need to budget _____

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LenaWriter [7]

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I think it is either A or D

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What type of web page is classified as flat or stationary
kipiarov [429]

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The total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 is the fraction of all games at the tournament Anita plays.

<h3>How to carry out Permutation and Combination?</h3>

We are given that there are 5 girls and 5 boys in a chess club.

Thus, total games that girls play against a boy = 5×5 = 25

The number of games a girl play against another is the total number of games = 10

The number of games that are boy vs boy = 10

The number of games Boy vs Boy + Girl vs Girl + Boy vs Girl = 10 + 10 + 25 =  45

Fraction of the games that are boy vs boy = 10/45 = 2/9

If Anita is one of the club members, then Anita will have to play against 9 people at the tournament.

Total number of games = 45

Then the fraction of all games at the tournament Anita play the game.= 9/45 ⇒ 1/5

Thus, the total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 fraction of all games at the tournament Anita plays.

Read more about Permutation and Combination at; brainly.com/question/4658834

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An infant suspected of having a patent ductus arteriosus is schedule for an echocardiogram. After teaching the parents about thi
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<h3>What is a Parental Statement?</h3>

This refers to the words spoken to the parents or guardians of a child in the hospital to give them feedback about the status of their ward/child.

Hence, we can see that your question is incomplete because a list of answer choices WAS NOT given, so a general overview was given.

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