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3 years ago

Help on finding kinetic energy??

2 answers:

8 0

Trick question? In order to have kinetic energy, an object must be moving. Therefore, in this case, kinetic energy would be 0. If it were asking about potential energy, it would be a different story.

goblinko [34]3 years ago

3 0

The equation for finding KE is :
KE=m•v^2/2
M=mass
V=velocity

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A Carnot air conditioner takes energy from the thermal energy of a room at 63°F and transfers it as heat to the outdoors, which

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For the Carnot air conditioner working as a heat pump between 63 and 100°F , It would transfer 3.125 Joules of heat for each Joule of electric energy supplied.

Explanation:

The process described corresponds to a Carnot Heat Pump. A heat pump is a devices that moves heat from a low temperature source to a relative high temperature destination. <em>To accomplish this it requires to supply external work</em>.

For any heat pump, the coefficient of performance is a relationship between the heat that is moving to the work that is required to spend doing it<em>.</em>

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$COP_{HP}=\frac{T_H}{T_H-T_L}$ Where:

T is the temperature of each heat deposit.

The subscript H refers to the high temperature sink(in this case the outdoors at 100°F)

The subscript L refers to the low temperature source (the room at 63°F)

Then, for this Carnot heat pump:

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