Estimate the distance (in cm) between the central bright region and the third dark fringe on a screen 5.00 m from two double slits 0.500 mm apart illuminated by 500-nm light
a. 3.47
b. 2.15
c. 1.75
d. 1.50
e. 1.25
e
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Two charges lie on the x axis, +2q at the origin, and -3q at x = 5.0 m. The point on the x axis where the electric potential has a zero value (when the value at infinity is also zero) is
a. 1.0 m. b. 2.0 m. c. 2.5 m. d. 3.0 m. e. 4.0 m.
Newton's version of Kepler's third law states: p2 = × a3 According to this, what observational information does one need in order to calculate the combined mass of a planet and its moon?
A) the orbital period and the density of the two objects B) the average distance between the two objects and the orbital period C) the radius of the two planets in meters and the average distance between them D) It is impossible to determine the mass of any astronomical object.
For general projectile motion if we neglect air, the horizontal component of a projectile's acceleration
A) is always zero. B) remains a non-zero constant. C) continuously increases. D) continuously decreases. E) first decreases and then increases.