What do asteroids and comets have in common
A) Most are unchanged since their formation in the solar nebula.
B) They have similar densities.
C) They have similar orbital radii.
D) They have a similar range of orbital inclinations.
E) They have nothing in common with each other.
A
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How many nodes does a standing wave in a string have at the frequency of the sixth harmonic?
a. 12 c. 3 b. 6 d. The answer is not given.
A +4.0-mC charge is placed on the x axis at x = +3.0 m, and a -2.0-mC charge is located on the y axis at y = -1.0 m. Point A is on the y axis at y = +4.0 m. Determine the electric potential at point A (relative to zero at the origin)
a. 6.0 kV b. 8.4 kV c. 9.6 kV d. 4.8 kV e. 3.6 kV
Vision Problems: If the back of a person's eye is too close to the lens, this person is suffering from
A. nearsightedness. B. spherical aberration. C. astigmatism. D. chromatic aberration. E. farsightedness.
How much current will be flowing through a 40.0 m length of cylindrical metal wire with radius 0.0 mm if it is connected to a source supplying 16.0 V? The resistivity of this metal is 1.68 × 10-8 ? ? m
A) 1200 A B) 9.5 × 108 A C) 68 nA D) 710 A