The Fermi energy of a metal at a temperature T is 7.0 eV. What is the average energy (in eV) of a conduction electron at that temperature?
a. 2.8
b. 7.0
c. 3.5
d. 4.2
e. 4.7
d
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What will be an ideal response?
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A. 26/11 B. 11/15 C. 15/26 D. 11/26 E. 26/15 F. 15/11
While running, a person dissipates about 0.6 J of mechanical energy per step per kilogram of body mass. If a 60-kg person runs with a power of 70 watts during a race, how fast is the person running? Assume a running step is 1.5 m long.
What will be an ideal response?
An emf is induced in a wire by changing the current in that wire
Indicate whether the statement is true or false