In 1919 Rutherford performed the first historic artificial transmutations of
A) hydrogen to helium.
B) nitrogen to oxygen.
C) carbon 12 to carbon 14.
D) none of the above
Answer: B
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Ancient astronomers called the brightest stars in a constellation sixth-magnitude stars
Indicate whether the statement is true or false
A prankster drops a water balloon from the top of a building. If the balloon is traveling at 29.1 m/s when it strikes a window ledge that is 1.5 m above the ground, how tall is the building? Neglect air resistance
A) 45 m B) 43 m C) 46 m D) 47 m
A single-turn loop of wire, having a resistance of 8.00 ? and a cross-sectional area 200 cm2, is perpendicular to a uniform magnetic field that increases steadily from 0.200 T to 2.800 T in 2.20 seconds
What is the magnitude of the induced current in the loop? A) 2.95 A B) 3.18 A C) 0 A D) 3.18 mA E) 2.95 mA
The diagram below shows the position of a long straight wire perpendicular to the page and a set of directions labeled A through H
When the current in the wire is directed up out of the page, the direction of the magnetic field at point P is
a.
A.
b.
B.
c.
C.
d.
D.
e.
E.