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Molten steel "glows" or emits visible light. Its spectrum is a perfect thermal radiation spectrum that peaks in the infrared, at 1764 nm.
From this information, what is the temperature of molten steel?
1. 700k
2. 1644k
3. no answer
4. 6083k
5. 5226k
Two sinusoidal waves of the same frequency are to be sent in the same direction along a taut string. One wave has amplitude of 5.0 mm, the other 10.6 mm. What is the resultant amplitude
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