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2 years ago

6

Which action best demonstrates the transformation of mechanical energy to heat energy? Select one: a. Digesting a meal b. Burnin

g a candle c. Rubbing hands vigorously d. Melting a piece of ice in sunlight

1 answer:

Anton [14]2 years ago

4 0

<em>(c). </em>Rub vigorously (mechanical) ===> hands get hot (heat energy).

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Question 10 (2 points)

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The length of the tube is 3.92 m.

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Put the value into the formula

$1.6\times10^{-15}= 9.1\times`10^{-31}\times9\times10^{16}(\dfrac{1}{\sqrt{1-\dfrac{v^2}{c^2}}}-1)$

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Here, $\gamma-1=(\dfrac{1}{\sqrt{1-\dfrac{v^2}{c^2}}}-1)$

$\gamma-1=0.01953$

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Using formula of length

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2 years ago