At point P the magnetic field due to a long straight wire carrying a current of 2.0 A is 1.2 µT. How far is P from the wire? (?0 = 4? × 10-7 T ? m/A)
A) 33 cm B) 22 cm C) 11 cm D) 55 cm E) 44 cm
A
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A monatomic ideal gas is cooled to one-half its original temperature during an isometric process. The final pressure of the gas
A) does not change. B) decreases to half its original value. C) increases to more than twice its original value. D) increases to twice its original value.
Which one of the following is not a type of plate collision?
A) continental divergence B) oceanic-continental C) continental-continental D) oceanic-oceanic
Nellie runs the length of a 100-yard football field in a time of 20 seconds. Her average running speed is
A) 1/2 yard/second. B) 5 yards/second. C) 50 yards/second. D) not enough information
Lithium, Li-7, contains three protons and four neutrons and has a mass of 7.01600 u. What is the mass defect for this nucleus in atomic mass units?