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OLEGan [10]
4 years ago
7

The householder installs cavity wall insulation. What would happen to the time taken for the temperature to fall between points

A and B?
The time taken decrease
The time taken increases
The time taken stays the same
Physics
1 answer:
scoundrel [369]4 years ago
5 0

Answer:

the answers the correct one is: the time increases

Explanation:

When an insulating material is placed in the cavity of a wall the thermal conductivity of the system increases, therefore the temperature changes take longer.

             P= dQ / dt = K A dT / dx

when placing insulation the value of k is less

When reviewing the answers the correct one is: the time increases

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Answer:

22.02 m

Explanation:

given,

Force, F = 107 N

angle made with horizontal = 13.5◦

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Force along horizontal= F cos θ

          = 107 cos 13.5°= 104 N

Power = \dfrac{work\ done}{time}

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Work done= Force x displacement

displacement= \dfrac{2290.2}{104}

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3 years ago
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Answer:

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Explanation:

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3 years ago
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What effect would thick cloud cover have on the temperature of earth's surface?
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Answer:

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Explanation:

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