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carpelumen
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Homework Statement
A magnet of mass 0.10 kg is dropped from rest and falls vertically through a 35.0 cm copper tube. Eddy currents are induced, causing the copper to warm up. The speed of the magnet as it emerges from the tube is 1.50 m/s. How much heat energy is dissipated to the environment?
Homework Equations
E = mgh
The Attempt at a Solution
h = 35 cm --> .35 m
E = (.10 kg) * (9.81) * (.35 m) = .3433 J
Is the equation incorrect?