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adelina 88 [10]
3 years ago
8

An ice skater is spinning about a vertical axis with arms fully extended. If the arms are pulled in closer to the body, in which

of the following ways are the angular momentum and kinetic energy of the skater affected?
SAT
1 answer:
12345 [234]3 years ago
8 0

It should be noted that the angular momentum remain constant  and kinetic energy of the skater increases.

<h3>What is Angular momentum?</h3>

Angular momentum  can be regarded as the property of any rotating object given by moment of inertia times angular velocity, since No net torque is done on the object, then  angular momentum is constant.

Kinetic Energy which is also the energy of motion in the Ice skater will increase since their is a pull.

Learn more about angular velocity and energy at:

brainly.com/question/26889176

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Answers plz i rlly need help
Anton [14]

Answer: 1. 5 feet

2. the product will be greater than the fraction and less than the mixed number.

Explanation:

1. Since Nancy needs 4 lengths of fabric that are each 7¾ feet. That means the total length will be:

= 7¾ × 4

= 31/4 × 4

= 31 feet

Since she already has a 36 foot bolt, the number of feet that will be left will be: = 36 - 31 = 5 feet

2. Since the question is about a fraction less than 1 multiplied by a mix number. Let's say the fraction less than 1 is ½ and the mixed number is 2½. Let's multiply them together. This will be:

= ½ × 2½

= ½ × 5/2

= 5/4

= 1 ¼

Base on this calculation, the correct answer is that the product will be greater than the fraction but less than the mixed number.

3. To solve this question, we need to convert 1 ⅔ hours to minutes. Since 60 minutes = 1 hour, 1⅔ hours = 1 ⅔ × 60 minutes = 5/3 × 60 = 100 minutes

Therefore, the number of minutes played before power went out will be:

= 3/4 × 100 minutes

= 75 minutes

8 0
3 years ago
Emotional responses are innate behaviors that are not influenced by the environment. Please select the best answer from the choi
Lunna [17]
That is false because the environment has a lot to do with it.
7 0
3 years ago
Read 2 more answers
Point (20, 5) is on the graph of inverse variation. Which of the following ordered pair is on the graph?.
Bess [88]

The point (10, 10) is on the graph.

<h3>Procedure - Inverse variation</h3><h3 /><h3>Inverse variation model</h3><h3 />

An <em>inverse</em> variation is represented by the following formula:

y = \frac{k}{x} (1)

Where:

  • x - Independent variable.
  • y - Dependent variable.
  • k - Proportionality constant.

We can eliminate the proportionality constant by creating the following relationship:

x_{1}\cdot y_{1} = x_{2}\cdot y_{2} (2)

<h3>Determination of another point</h3>

If we know that x_{1} = 20, y_{1} = 5 and x_{2} = 10, then the remaining variable is:

y_{2} = \left(\frac{x_{1}}{x_{2}} \right)\cdot y_{1}

y_{2} = \left(\frac{20}{10} \right)\cdot (5)

y_{2} = 10

The point (10, 10) is on the graph. (Correct choice: C) \blacksquare

To learn more on inverse variations, we kindly invite to check this verified question: brainly.com/question/4838941

<h3>Remark</h3>

The statement is incomplete. Complete form is described below:

<em>Point </em>(20, 5)<em> is on the graph of an inverse variation. Which of the following ordered pair is on the graph? </em><em>A.</em><em> </em>(4,1)<em>, </em><em>B.</em><em> </em>(2, 25)<em>, </em><em>C.</em><em> </em>(10, 10)<em>, </em><em>D.</em><em> </em>(16, 4)<em>.</em>

7 0
3 years ago
From your location, what is the best definition<br>of a celestial object?​
dybincka [34]
A celestial object is within space.
3 0
3 years ago
Using the PACED decision-making model, select the best tires for Ray?
anzhelika [568]
What are some of the tires Ray would be able to use. Then break it down to what tire would be probably be the most durable, the most long lasting, which ones are safer, and which one have the best tread. Then you would be able to make your decision.
6 0
3 years ago
Read 2 more answers
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