What is the kinetic energy of a 0.5-kg ball traveling at a speed of 300 m/sec?

Answers

Answer 1
Answer:

The kinetic energy 22,500 joules

The calculation can be done as follows

mass= 0.5 kg

time= 300 m/s

Kinetic energy= 1/2mv²

= 1/2 × 0.5 × 300²

= 0.5 × 0.5 × 90,000

= 22,500

Hence the Kinetic Energy is 22,500 joules

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Answer 2
Answer:

KE = 22500 J

KE= 1/2mv^2

1/2*.5*300^2

that's your answer AND formula.


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What personal touches can you add to your outlines which make creating and studying from them easier?

Answers

You can add pictures to help understand more easily.

Answer:

Personal touches you can add to outlines would be, highlighting or underlining key points. As well as keeping your outlines organized. You could do that by making sure you have headings of your main ideas or subject.

Explanation:

thats what i put got a 100

What can you conclude about the area groundwater supply

Answers

An areas rate of the groundwater recharge its rate of discharge

The distribution of random variable R has mean 10 and standard deviation 4. The distribution of random variable S has mean 7 and standard deviation 3. If R and S are independent, what are the mean and standard deviation of the distribution of R−S ?A) Mean 3 and standard deviation 1

B) Mean 3 and standard deviation 5

C) Mean 3 and standard deviation 7

D) Mean 17 and standard deviation 1

E) Mean 17 and standard deviation 5

Answers

The mean and standard deviation of the distribution of R−S is;

Option B; Mean 3 and standard deviation 5

We are given details of two random variables R and S.

RandomVariableR;

- Mean; μ_R = 10

- Standard deviation; σ_R = 4

RandomVariable S;

- Mean; μ_S = 7

- Standard Deviation; σ_S = 3

We want to carry out R - S for both mean and standard deviation

1) For Mean; R - S would simply be done by subtracting normally as done in arithmetic operations.

Thus;  μ_R -   μ_S = 10 - 3

μ_R -   μ_S = 7

2) For standard deviation;

We know that standard deviation is not independent as it is the square root of variance.

Therefore, if we want to add or subtract standard deviations, it means that the variation will increase.

Thus, the difference in standard deviation is;

σ_R - σ_S = √((σ_R)² + (σ_S)²)

σ_R - σ_S = √((4)² + (3)²)

σ_R - σ_S = √25

σ_R - σ_S = 5

In conclusion, the distribution of R - S gives;

Mean = 3 and Standard deviation = 5

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Answer: B

Mean of 3 and Standard deviation of 5

Explanation:

Performing operations on means of independent variables is similar to performing arithmetic operations on natural numbers.

Subtracting the mean of S from R is 10 - 7 = 3

For the difference in standard deviation. It should be noted that when combining variables, the variation within the distribution. So therefore, adding or subtraction of variables, the variation will increase and will yield same answer.

To obtain the difference in standard deviation, the variances of the random variables has to be added and then the square root will be taken to return back to standard deviation.

SD(R-S)=sqrt(R²+S²)

SD=sqrt(4²+3³)

SD=sqrt(25)

SD=5

ITS FOR PHOTOGRAPHY NOT NOT NOT ADVANCED PLACEMENTITS FOR PHOTOGRAPHY AS THE SUBJECT

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REQUIREMENTS

3. scientific photographer concentrates on which subject?
A. SOCIAL ISSUES. B. DISEASE. C. CRIME SCENES. D. FASHION

4. A commercial photographer concentrates on which subject?
A. DISEASE. B. CRIME SCENES. C. FASHION. D. SOCIAL ISSUES

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6. A photojournalist would be most likely to be employed by which of the following?
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8. What is the first step in becoming a professional photographer?
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A. TRUE. B. FALSE

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14. Freelance photographers often have greater flexibility in the hours they work and
the types of photographs that they can take.
A. TRUE. B. FALSE

15. Many photographers work non-traditional hours, such as weekends.
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IT IS NOT ADVANCED PLACEMENT ITS PHOTOGRAPHY
ITS PHOTOGRAPHY
ITS PHOTOGRAPHY

Answers

PHOTOGRAPHY AS THE SUBJECT IS NOT ADVANCED PLACEMENT subject

Answer:B A B C A B B B A A B B

Explanation:

Whats junior marshall?

Answers

Answer:

Explanation:

A junior marshal is an honor bestowed on the top academic students from the high school junior class.

These students help at Graduation, Senior Awards, the Baccalaureate service, etc. How junior marshals are selected will vary by school.

So this falls under the education system that that the government always follow when doing employments.Junior of Marshall is important because it is a bridge to success  

What are metaphor on this paragraph every morning at my house,we eat breakfast at the crack of dawn. My mom likes to cook big breakfast. Then scrambled eggs are a mountain on the platter. The pancakes are fluffy and sweet. I soak them in strawberry syrup. With food like this, who wouldn't want to get up early?

Answers

The metaphor exists "Then scrambled eggs exist a mountain on the platter." Analogizing scrambled eggs to a mountain.

What is metaphor?

A metaphor exists as a figure of speech that, for rhetorical influence, directly guides one thing by mentioning another. It may furnish clarity or recognize hidden similarities between two various ideas.

At their most basic, metaphors exist utilized to create a direct comparison between two separate things, to ascribe a particular quality to the first.

The word metaphor can be outlined from the Greek word metaphor, suggesting transfer. A metaphor exists as a figure of speech utilized to describe or creatively correspond to different things that are not identical but has similarity. Sometimes, a sentence may sound awkward utilizing metaphors, but it exists a unique method of comparing things.

From the given, The metaphor exists "Then scrambled eggs exist a mountain on the platter." Analogizing scrambled eggs to a mountain.

Common metaphor examples are Life exists a highway. Her eyes existed as diamonds. He exists as a shining star. The snow exists as a white blanket. She exists as an early bird.

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The metaphor is "Then scrambled eggs are a mountain on the platter."

Comparing scrambled eggs to a mountain.