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jok3333 [9.3K]
3 years ago
6

Which is a characteristic of a physical change? (1 point)

Physics
1 answer:
krek1111 [17]3 years ago
6 0
The answer would be a.

a chemical change is a change to the chemical makeup of a substance so if the bonds are unchanged it would be a characteristic of a physical change
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Objects in space are moving at a constant velocity in a straight line.
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Answer:

C

Explanation:

An object in motion will stay in motion unless acted on by a net positive or negative force.

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For answer D. No energy is "required" to maintain constant motion unless the object is willingly fighting against a resistive force like friction or a graviational well.

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A wave has a wavelength of 10 mm and a frequency of 14 hertz. What is its speed?
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0.14 meters per second .
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3 years ago
Help please :pensive:
tino4ka555 [31]

Answer:

0m/s²

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Acceleration is the rate of change of velocity with time.

It is mathematically expressed as;

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u is the initial velocity

t is the time taken

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6 0
2 years ago
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