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An aluminum rod at a temperature of 100o Celsius radiates energy at a rate of 10 watts. If its temperature is enhanced to 200o Celsius, at approximately what rate will it radiate energy?
a) 15 watts
b) 20 watts
c) 26 watts
d) 80 watts
Ans- 26 WATTS
the principle
A rocket weighs 9800N. What applied force gives it a vertical acceleration of 4m/sec/sec?
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