A system of 11 protons and 15 neutrons has a net charge of
a. 17.6 × 10^-19 C.
b. –17.6 × 10^-19 C.
c. 41.6 × 10^-19 C.
d. 11.0 × 10^-19 C.
e. –41.6 × 10^-19 C.
a
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Fissioning an iron nucleus would occur with
A) absorption of energy. B) release of energy. C) neither absorption nor release of energy
As a star's evolution approaches the Type II supernova, we find
A) photo disintegration of iron nuclei begins at 10 billion K to ignite the supernova. B) helium to carbon fusion takes at least 100 million K to start. C) the heavier the element, the higher the temperature to fuse it. D) the heavier the element, the less time it takes to make it. E) All of the above are correct.
The work done by a non-conservative force is recoverable
Indicate whether the statement is true or false
A 2.0 ?F capacitor is charged to 12. V and then discharged through 4 × 106 ?. How long will it take for the voltage across the capacitor to drop to 3.0 V?
What will be an ideal response?