The energy released per reaction is smaller for fusion reactions than for the typical fission reactions. Yet fusion produces more energy per pound of fuel than fission of elements because
A. the daughter nuclei produced by fission each have excess kinetic energy.
B. the fusion fuel consists of very light elements.
C. fusion occurs in the sun.
B. the fusion fuel consists of very light elements.
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How would you include contact resistance between the two materials Derive the appropriate difference equations.
GIVEN
Interface between two materials with different thermal conductivities and contact resistance at the
interface
FIND
(a) The appropriate difference equations
SKETCH
A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on the pole, thus increasing the vertical frictional force that the pole exerts on the fireman
When the force exerted on his hands equals the force that Earth exerts on him, what happens to the fireman? A) The fireman comes to a stop. B) The fireman descends with slower and slower speed. C) The fireman descends with a smaller but non-zero acceleration. D) The fireman continues to descend, but with constant speed. E) The acceleration of the fireman is now upward.
In 400 B.C., a Greek named ______________ championed the idea that if matter were repeatedly cut into smaller divisions, eventually an indivisible particle would be reached
Fill in the blank(s) with correct word
Capacitor #1 has parallel plates of length L and width W, plate separation d, and is filled with dielectric with constant K.Capacitor #2 has parallel plates of length 2L and width 2W, plate separation 2d, and is filled with dielectric with constant 2k. If a voltage V is applied to capacitor #1 and a voltage 2V is applied to capacitor #2, which capacitor stores more energy and by what factor?
a. Capacitor #2 by a factor of 8 b. Capacitor #2 by a factor of 16 c. Capacitor #1 by a factor of 4 d. Both capacitors store the same energy.