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lawyer [7]
3 years ago
12

After how many seconds does the motorcycle have positive acceleratolion​

Physics
1 answer:
densk [106]3 years ago
3 0
After 4 seconds it has positive acceleration
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pashok25 [27]

Answer:

the correct answer is the 60

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3 years ago
Why do objects not cool to absolute zero by emitting all their thermal energy
iren [92.7K]

Answer:

Because the object should shrink its volume to zero, which is impossible

Explanation:

Let's talk about gases for simplicity. Ideal gases are governed by the ideal gas equation:

pV=nRT

where

p is the gas pressure

V is the volume of the gas

n is the number of moles

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T is the absolute temperature

From the formula, we see that T and V are directly proportional: therefore, in order for a gas to have an absolute temperature of zero, it must also have a volume of zero, which is impossible.

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3 years ago
"If you double the wavelength of a wave on a particular string", what happens to the wave speed v and the frequency f ? (i) v do
nadezda [96]

Answer:

v doubles and f is unchanged

Explanation:

According to the formula v = f¶

Where v is the velocity of the wave

f is the frequency

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According to the question, if the wavelength is doubled, the velocity (v) will also double while the frequency (f) remains unchanged.

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