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sesenic [268]
3 years ago
14

The speed of sound at room temperature (20 degrees Celsius) is 343 m/s. If the speed of sound in air increases about 0.60 m/s fo

r every 1 degrees Celsius increase, what is the temperature when the speed of sound is 353 m/s?
Physics
1 answer:
stepan [7]3 years ago
4 0

Answer:

36,67 degrees Celsius

Explanation:

The simplest way to approach this problem, given the information provided, is to simply start with the speed difference.

Goal: 353 m/s

Start: 343 m/s (at 20 degrees Celsius).

Difference: 10 m/s

Variation rate: 0.60 m/s/d (d = degree)

d = \frac{10 m/s}{0.60 m/s/d}  = 16,67 d

So, 16,67 degrees more than the starting point.

The temperature will then be 36.67 degrees Celsius, when the sound travels at the speed of 353 m/s.

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Solution :

Given

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The speed ball spun at the beginning = 150 rpm

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Therefore, change of speed in 5 seconds = 150 - 60

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Therefore,

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2 years ago
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Answer:

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Explanation:

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So, the least coefficient of static friction between the cat and the merry-go-round is 0.29.

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