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bonufazy [111]
3 years ago
5

Hillary is dropping objects that are the same volume. She wants to investigate how an object’s mass affects the average speed at

which it travels when dropped, until it hits the ground. Which variable must Hillary change during the experiment?
A. the timer
B. the drop height
C. the mass of the object
D. the place where she drops it
Physics
1 answer:
Artemon [7]3 years ago
3 0

Answer:

letter C. The mass of the object.

Explanation:

i hope it helps.

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Answer:

F_n = -4 N

Explanation:

Net external force that exerted on the block is given as

F_{net} = (m_1 + m_2) a

here we know that

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m_2 = 2 kg

now we have

12 = (4 + 2) a

so we have

a = 2 m/s^2

now the force exerted by bigger block on smaller block is given as

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F_n = 4 N

now we know that two blocks will exert equal and opposite force on each other

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3 years ago
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Answer:

C. All planets orbit the Sun in the same direction.

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Nabr is the answer bcoz in a chemical reaction reactants react to form new substances and according to your options NaBr should be the answer

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Answer:

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Explanation:

Please mark me as brainliest!! Hope I helped

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