Explain how the force of air resistance depends on an object speed

1 answer:

8 0

<span>for small, slower moving objects, the force of air resistance varies as the first power of v; for larger and faster objects, air resistance varies as the square of speed, or as v^2
</span>
for small, slower moving objects, the force of air resistance varies s the first power of v; for larger and faster objects, air resistance varies as the square of speed, or as v^2

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The latent heat of fusion for Aluminium is 3.97 x 105. How much energy would be required to melt 0.75 kg of it?

RoseWind [281]

Answer:

$E = 2.9775\times10^5 J$

Explanation:

Given: The latent heat of fusion for Aluminum is $L = 3.97\times10^5 J/Kg$

mass to be malted m = 0.75 Kg

Energy require to melt E = mL

$E = 3.97\times10^5\times0.75 = 2.9775\times10^5 J$

Therefore, energy required to melt 0.75 Kg aluminum

$E = 2.9775\times10^5 J$

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