2 years ago

A mass of 2kg has a kinetic energy of 16J.what is the momentum of the body?

Chemistry

1 answer:

juin [17]2 years ago

3 0

Explanation:

mass -2kg

energy -16j

k.e -1/2mv

16j= 1/2×2×V

16× 2/2 =V

16 = V

√16= V

V= 4m/s

Then

momentum=MV

=2×4

=8kgm/s

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A beaker is filled to the 500 mL mark with alcohol. What increase in volume (in mL) does the beaker contain when the temperature

Aliun [14]

Answer:

"1.4 mL" is the appropriate solution.

Explanation:

According to the question,

$v_0=500$
$\alpha =1.12\times 10^{-4}$
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Now,

Increase in volume will be:

⇒ $\Delta V = \alpha\times v_0\times \Delta \epsilon$

By putting the given values, we get

$=1.12\times 10^{-4}\times 500\times 25$

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2 years ago

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miv72 [106K]

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