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Aneli [31]
3 years ago
9

Is fire actually hot and why do we call it hot; is it a classification for when something burns you.

Physics
1 answer:
rodikova [14]3 years ago
6 0
Yes it is classified as hot
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A 240 cm length of string has a mass of 2.5 g. It is stretched with a tension of 8.0 N between fixed supports. (a) What is the w
kotykmax [81]

Answer:

a.87.6 m/s

b.18.25 Hz

Explanation:

the equation for the wave speed is expressed as

v=\sqrt{\frac{Tl}{m}}\\

where v is the speed,

           T is the tension in Newton

           l is the length

and      m is the mass

Now since

T=8.0N\\m=2.5g=0.0025kg\\l= 240cm=2.40cm\\

by substituting values into the equation, we have

v=\sqrt{\frac{8*2.40}{0.0025} } \\v=87.6m/s\\

b. the expression for the frequency is giving as

Frequency,f=\frac{v}{2l} \\f=\frac{87.6}{2*2.40} \\f=18.25Hz\\.

Note we 2L as the wavelength because we solving for the fundamental frequency as stated in the question.

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You could use an elevator or stairs to lift a box to the tenth floor. Which has greater energy? Why?
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3 years ago
((Psychology))According to Sternberg, consummate love includes:
Anuta_ua [19.1K]
<span>According to Sternberg, consummate love includes:

This is the answer:

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What is your theory on frame of reference?
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What is your theory on frame of reference?

Answer:

It is the idea of seeing something from a different perspective

Explanation:

Hope this helps!

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Where can radiation be found in nature and how is it affected
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