Energy ()

- potential energy

total energy

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1.5

no, the total energy is not conserved. time (s)

yes, the total energy is conserved.

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The metric unit of electrical power is the watt volt ampere ohm

How many times did thomas edison mess up the light bulb

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.