An ice cube of size a = 10 cm is floatin...

An ice cube of size `a = 10 cm` is floating in a tank (base area `A = 50 cm xx 50 cm`) partially filled with water. The change in gravitational potential energy, when ice melts completely is (density of ice is `900 kg//m^(2)`)

`-0.072` J

`-0.24` J

`-0.016` J

`-0.045` J

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