Physics

divide both sides of the equation by mass, it divides out.

mass*HeatFusion=mass*gh

How do you calculate the height that a block of ice at 0°C must be dropped to completely melt upon impact. Assume that all of the initial gravitational potential energy of the block goes into melting the ice.

ENergy to melt: mass*HeatofFusion
energ from falling: mass*g*h
set them equal, and solve for height h.

Yeah, but we are not given mass. And it says that it is not needed. This is what totally throws me off. I don't see how I can solve without having mass.

Allie,you should rewrite the problem at the top so he can see it because I don't think he goes down again.LOL!Also,do you go to Gateway?Becuase I think I know you!

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