Two planes of a crystal are separated by 3.25 Angstroms (or 3.25 x 10-10m). How many maxima will there be in the diffraction pattern of 2.0 Angstrom X-rays from this crystal?
A. 4
B. 2
C. 3
D. an infinite number
E. 1
C. 3
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When mapping the interior of the Sun, astronomers must measure _____ as the photosphere moves up and down
a. Doppler shifts b. magnetic fields c. sunspots d. limb darkening e. supergranules
The position x, in meters, of an object is given by the equation x = A + Bt + Ct2, where t represents time in seconds. What are the SI units of A, B, and C?
A) m, m, m B) m, s, s C) m, s, s2 D) m, m/s, m/s2 E) m/s, m/s2, m/s3
The weight of air in a column 1-m2 in cross section that extends from sea level to the top of the atmosphere is
A) 101 N. B) 10,100 N. C) 101,000 N. D) 101,000,000 N.
Does a high-speed bullet's path bend more than a light beam bends as it passes near Earth?
A) Yes, because the bullet is heavier than the light beam. B) Yes, because the light beam has a greater acceleration that the bullet. C) Yes, because the bullet moves slower than the light beam. D) No, because all falling objects accelerate at the same rate. E) No, because of Einstein's equivalence principle.