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A frictional metal of atomic weight 27 has a density of 3000kg m^-3. The heat of fusion is 4*10^5J kg^-1 at the melting point (900k), and at the boiling point (1300k) the heat of vaporization is 1.20*10^7J kg^-1. For the solid, cp can be given by 750+0.5T in J kg^-1 and in the liquid cp is 1200J kg^-1 k^-1 independent of temperature. (a) Draw a curve of temperature versus time as 10 g of this metal are heated at a constant rate of 1W from 300 to 1200k. (b) Determine the amount of heat necessary to cause this temperature change.© BrainMass Inc. brainmass.com October 16, 2018, 8:36 pm ad1c9bdddf
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Physics: Described frictional force, tension force, centripetal force, weightlessness
For each topic describe in a brief paragraph 1) Its key characteristics and 2) A personal observation, or an experience with, or an example of a real world application of the topic.
A) frictional force
b) tension force
c) centripetal force