Answer the following qs in full sentence:
1. Give reason why a steel chair feels cooler than a wooden one. (both having same temperature)
2. Give reason why sound travels faster on a hotter summer day than a cooler winter day.
3. Give reason why petrol storage tank surfaces are made up of aluminum.
4. A dog is 140 m away from a man. If the whistle takes 0.42 s to travel from the man to dog, calculate the speed of sound.
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Explanation:
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Answer:
1)because of it is metal
2)because in summer it will be hot
3) because if it was made of plastic it will burn at any time
4)140/0.42=338.0952381 it because of speed formula = distance/time=d/t
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