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What is Power?
Power is how fast work is done or energy is used.
Example: Remember that cheeseburger (~1/4 pound) I lifted up one meter to do one joule of work? If you now lift that same burger one meter in one second, you have used one watt of power. One joule per one second is one watt of power. If it took me 2 seconds, who used more power? You did of course, you worked faster. If you and I do the same amount of work but you do it twice as fast, you have used twice the power (1 watt) I have (watt).
If P is power in watts, W is work in joules and Δt is time to do the work in seconds:
P = W / Δt
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Show that the spectrum of thermal radiation for T ¼ 300K peaks at approximately 10 microns Minimum 100 words accepted
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In the case of materials some of the atoms or ions in the material have a net magnetic due to unpaired electrons in partially filled orbits. However, the individual magnetic mome
Magnification is the ratio of size of image to the size of object. hence it is a dimensionless constant. It has no units. 1/m is not its unit.(1/m is the unit of power=DIOPTRE)
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EXPLANATION: Whenever an interaction occurs among two objects, each object exerts the similar force on the other, but in the opposite direction and for the similar length of ti
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