Recent content by electrofanner

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    Temperature: Our body and the environment

    Thanks. Quoting: "When something feels warm to you, that is because heat is leaving it and entering you" Exactly. This is what perplexes me. Since the temperature of the body is higher than that of the surroundings, shouldn't heat be leaving our body - therefore, shouldn't we feel cold...
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    Temperature: Our body and the environment

    It is generally believed that the normal body temperature of a healthy human adult is around 37.0 degrees C. If the temperature of the surroundings in Singapore (tropical equatorial climate) is around 27.0 degrees C, why do humans feel warm when heat is supposed to be leaving the body. (Heat...
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    What is the value of k for which (a-3b) is a factor of a4 - 7a2b2 + kb4?

    Find the value of k for which (a-3b) is a factor of a4 - 7a2b2 + kb4. Hence, for this value of k, factorize a4 - 7a2b2 + kb4 completely. I tried to do it but my mind is not going anywhere. Any help will be greatly appreciated. :)
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    Ball released from rest at the top of slope

    Homework Statement In an experiment, a ball was released from rest at the top of a slope and rolled a distance of 2.0 m down the slope in 8.0 s. Calculate (a) its average speed in this time (b) the speed after 8.0s from rest (c) the acceleration of the ball Basically, I got the...
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