4. The head of a nail is hammered into the wooden plank becomes hot. This is because of:
options
a. Conversion of K.E into heat energy
b. Conversion of P.E into heat energy
c. Conversion of chemical energy into heat energy
d. Conversion of sound energy into heat energy
5. When ever energy gets transformed ,the total energy
a. Becomes zero b. Remain unchanged c. Changes d. None of these
Answers
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1
Answer:
answer is A
Explanation:
conversion of K.E into heat energy..
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