3 years ago

Sound travels slower in colder air than it does in warmer air. why does the speed of sound depend on air temperature?

1 answer:

7 0

Heat is kinda like sound (because it's a form of kinetic energy). More energy is the effect of higher tempetures, hence they vibrate faster. Because of this sound waves can travel at a faster rate. Hope this helped :)

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What is the speed of a bobsled whose distance-time graph indicates that it traveled 100 m in 25 s?

larisa86 [58]

As per the question, the distance travelled by bobsled [s] = 100 m

The time taken by the bobsled to travel that distance [t] = 25 s

We are asked to calculate the speed of the bobsled.

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$speed\ =\ \frac{distance}{time}$

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Hence, the correct answer to the question is A. 4 m/s.

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3 years ago

A rectangular dam is 101 ft long and 54 ft high. If the water is 35 ft deep, find the force of the water on the dam (the density

blsea [12.9K]

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