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andriy [413]
3 years ago
14

Help meeeeeeeeeeeee ill mark brainlist to people

Physics
1 answer:
kvasek [131]3 years ago
5 0

Answer: question 1 , would be one question 2 , would be 1 joule and number three would be number one and number four would be , power and last one would be, number two

Explanation: sorry if its wrong

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Complete the sentences below correctly. Stunt Car A and Stunt Car B are identical cars with the same mass of 48.9 kg. They are b
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Answer:

Stunt Car A experiences a large force over a short period of time. Stunt Car B experiences a small force over a long period of time. Because of the force experienced by Stunt Car A, it will sustain more damage than Stunt Car B.

Explanation:

Both cars have the same mass and velocity, therefore they have the same momentum. During the collision, the total momentum of the car A and brick wall is conserved as well as the total momentum of the car B and the pile of leaves.

However, if we are to investigate the damage on each car, we should look at the cars not the whole system. So, the momentum difference between the cars gives us the impulse that the car felt.

\vec{J} = \Delta \vec{P}\\\vec{F}\Delta t = \vec{P}_2 - \vec{P}_1

Since the Car A will crash the wall quicker than the other car crashes through the pile of leaves,

\Delta t_1 < \Delta t_2

which gives us

F_1 > F_2

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3 years ago
Serena is a research student who has conducted an experiment on the discoloration of marble. Read about Serena’s experiment. The
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She did not have a control group, and she did not expose all three samples to wind. Because her hypothesis was a combination of things, she needed to test the different combinations.
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4 years ago
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What is the magnitude of the momentum of a 33 g sparrow flying with a speed of 8.7 m/s?
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Answer:

0.2871 kg m/s

Explanation:

p = mv

convert 33g into kg (0.033)

mulitply byt 8.7 to get 0.2871

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What is dependent variable?
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  • The variation of a dependent variable is usually the one being researched and studied between the two variable types (dependent and independent). It is done through regression and alteration of inputs and the development of regression models based on theoretical studies.
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2 years ago
How original were Newton’s contributions to science? (In what ways did Newton depend on the mechanical view?)
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3 years ago
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