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Sidana [21]
3 years ago
7

Which factors affect the gravitational force between objects? Check all that apply.

Physics
2 answers:
storchak [24]3 years ago
6 0

Answer:

the answer is C and D

Explanation:

did it on edge

hope u have better day than me

hope this helps

drek231 [11]3 years ago
4 0

Explanation:

distance between both objects and masses of the objects

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Speed= distance/time
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You need a 450 microgram sample of gold, but you only have a mass balance that measures in decigrams. Convert the amount of gold
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The amount of gold in decigrams if 450 micrograms is needed is 4.5 × 10-³ decigrams.

<h3>How to convert micrograms to decigrams?</h3>

According to this question, 450 micrograms of a sample of gold is needed but we only have a mass balance that measures in decigrams.

This means that we are to convert the amount of gold you need to decigrams by comparing the exponents.

The conversion factor of micrograms to decigrams is as follows:

1 micrograms = 1 × 10-⁵ decigrams

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Therefore, the amount of gold in decigrams if 450 micrograms is needed is 4.5 × 10-³ decigrams.

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The aeroplane lands at a speed of 80 m/s
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The mass of the aeroplane is 300,000 kg.

<h3>What is Newton's second law of motion?</h3>

It states that the force F is directly proportional to the acceleration a of the body and its mass.

The law is represented as

F =ma

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Given is the aeroplane lands at a speed of 80 m/s. After landing, the aeroplane takes 28 s to decelerate to a speed of 10 m/s. The mean resultant force on the aeroplane as it decelerates is 750 000 N.

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Substitute the values and we have

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Thus, the mass of the aeroplane is 300,000 kg.

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