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9 July, 10:48

How much heat is absorbed by 20g granite boulder as enegry from the sun causes its temperature to change from 10 celsius to 29 celsius?

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  1. 9 July, 14:29
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    m = mass of granite boulder = 20 g

    c = specific heat of granite boulder = 0.79 J/gC

    T₀ = initial temperature of granite boulder = 10 °C

    T = final temperature of granite boulder = 29 °C

    Q = heat gained by granite boulder as energy from the sun

    heat gained by granite boulder is given as

    Q = m c (T - T₀)

    inserting the values

    Q = (20) (0.79) (29 - 10)

    Q = 300.2 J
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