The A-bomb is based on
A) popcorn.
B) nuclear fusion.
C) radioactive decay.
D) a chemical reaction.
E) nuclear fission.
E
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A galvanometer has a coil with a resistance of 24.0 ?. A current of 180 ?A causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for 10.0 A, what shunt resistor is required?
A) 123 ?? B) 234 ?? C) 342 ?? D) 432 ?? E) 423 ??
A high-voltage transmission line carries 1 000 A at 700 kV for a distance of 200 miles. If the resistance in the wire is 1 ?/mile, what is the power loss due to resistive losses?
a. 20 kW b. 200 kW c. 20 MW d. 200 MW e. 200 W
The natural sciences are divided into physical sciences and ______________ sciences
Fill in the blank(s) with correct word
Suppose that you measure the parallax angle for a particular star to be 0.5 arcsecond. The distance to this star is
A) 0.5 light-year. B) 0.5 parsec. C) 5 light-years. D) 5 parsecs. E) 2 parsecs.