Suppose you have a spring where the wire diameter, d = 0.0638" and the coil diameter, d= 0.478”. the spring is subjected to a force, f= 10.906 lbf. a. what is the stiffness constant, c? b. what is the bergstrasser factor, kb? c. what is the shear stress, τ?

On a average work day more than work place firs are reorted

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

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