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Hello Could someone help me with this problem? thanks

Part

A:

A container holds 35.0 kg of water at 20.0 C. HOw much energy must be removed from the water to turn it completely into ice at 0 C?

Part

B:

The block of ice is projected a cross a surface at an initial speed of 6.50m/s. While it is sliding across the surface, the friction force casues the ice to melt. After the block has stopped sliding and come to rest, how much ice has melted? Assume that all tof the internal enrgy transformed by the frction force goes into the ice -- none goes into the surface.

C:

With the same assumptions as in part (b), with what speed would the block of ice have to be projected inorder to completely melt it due to friction?

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# Homework Help: Energy physics homework

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