The thermonuclear process in solar and less massive stars which produces one atom of helium from four of hydrogen is the ________
Fill in the blank(s) with correct word
proton-proton chain
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The two ends of a 6.60-? resistor are connected to a 14.2-V battery. What is the total power delivered by the battery to the circuit?
a. 0.326 W b. 30.6 W c. 2.15 W d. 619 W
What did Becquerel discover about uranium?
a. That some uranium salts fluoresced in sunlight. b. That all uranium salts fluoresced in sunlight. c. That X rays striking some uranium salts produced visible light. d. That fluorescent light can pass right through the light proof covering used then for photographic plates. e. That all uranium salts would expose photographic film with or without exposure to light.
If C = 10 ?F, what is the equivalent capacitance for the combination shown?
a.
7.5 ?F
b.
6.5 ?F
c.
7.0 ?F
d.
5.8 ?F
e.
13 ?F
A conducting sphere of radius 20 cm is charged to a potential of 
volts. What is the charge on its surface?
A. 22 
C
B. 4.4 C
C. 4.7 mC
D. 9.0 nC
E. 16 mC