Identical 2.0-?C charges are located on the vertices of a square with sides that are 2.0 m in length. Determine the electric potential (relative to zero at infinity) at the center of the square
a. 38 kV
b. 51 kV
c. 76 kV
d. 64 kV
e. 13 kV
b
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Which is the smallest?
A. The distance from the Sun to its nearest neighboring star B. The distance from the Sun to the Andromeda Galaxy C. The distance from the Sun to the Virgo cluster of galaxies D. The distance from the Sun to the center of the Milky Way Galaxy E. The Solar System.
Gas that has never been cycled through a galaxy or a star is said to be ________
Fill in the blank(s) with correct word
An 80-kg football player travels to the right at 8 m/s and a 120-kg player on the opposite team travels to the left at 4.0 m/s. The total momentum is
A. 240 kg m/s to the left. B. 160 kg m/s to the right. C. zero. D. 1120 kg m/s to the right. E. 160 kg m/s to the left.
A microscope has an objective lens with an aperture diameter 0.60 cm. A monochromatic light source of wavelength 580 nm is used to illuminate the object. It is determined that the minimum angle of resolution is 1.18 × 10^-4 rad. If the present lens were replaced by one with an aperture of diameter 1.0 cm, what would the minimum angle of resolution now become? (1 nm = 10-9 m)
a. 1.5 × 10^-4 rad c. 0.71 × 10^-4 rad b. 0.79 × 10^-4 rad d. 1.8 × 10^-4 rad