It can be concluded from Gauss's law for magnetism that
A)
south magnetic poles do not exist.
B)
isolated magnetic poles sometimes exist.
C)
north magnetic poles do not exist.
D)
magnetic poles are pairs of electric charges.
E)
isolated magnetic poles do not exist.
E
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Write out the number 7.35 × 10-5 in full with a decimal point and correct number of zeros
A) 0.00000735 B) 0.0000735 C) 0.000735 D) 0.00735 E) 0.0735
A proton is accelerated from rest through a potential difference of 150 V. It then enters a region of uniform magnetic field and moves in a circular path (radius = 12 cm). What is the magnitude of the magnetic field in this region?
a. 18 mT b. 12 mT c. 15 mT d. 22 mT e. 10 mT
Most stars on the H-R diagram are on the ____________________
Fill in the blank(s) with correct word
How does the axial tilt of Mars compare with our own?
A) Like Jupiter, Mars always keeps its equator pointing at the Sun. B) It is about half our own, 12 degrees. C) It is almost identical to the Earth. D) Like Saturn, it's about 27 degrees. E) Like Uranus, it is 98 degrees and flopped over on its side.