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17 September, 03:16

A 3-kg plastic tank that has a volume of 0.2 m3 is filled with liquid water. Assuming the density of water is 1000 kg/m3, determine the weight of the combined system.

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  1. 17 September, 03:58
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    1989.4 N

    Explanation:

    Volume of tank, V = 0.2 m^3

    density of water, d = 1000 kg/m^3

    mass of tank, m = 3 kg

    Mass of water in the tank, M = Volume of tank x density of water

    M = V x d

    M = 0.2 x 1000 = 200 kg

    Total mass = M + m = 200 + 3 = 203 kg

    total weight, W = total mass x g

    W = 203 x 9.8 = 1989.4 N

    Thus, the total weight of the combined system is 1989.4 N.
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