You drive five blocks due north, five blocks due east, and another two blocks due north. What is the magnitude of your displacement?
A. 7 blocks
B. 12 blocks
C. 9 blocks
D. 10 blocks
E. 8.6 blocks
E. 8.6 blocks
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______ refers to the amount of vertical spacing between lines of text.
A. Leading B. Tracking C. Kerning D. Indenting
"Half-integral spin" means spin
a. 1/2 b. 1/2, 1, 3/2, 2, ... c. 1/2, 3/2, 5/2, ... d. none of the above
I am stationary in a reference system but if my reference system is not an inertial reference system, then, relative to me, a system that is an inertial reference system must
a. remain at rest. b. move with constant velocity. c. be accelerating. d. be none of the above.
Spectrographic analysis of light from a distant galaxy shows that the galaxy is receding from Earth at v = 0.384 c. Use Hubble's law with H = 17 km/s/106 lightyears to estimate the distance to the galaxy
a. 3.3 × 10^8 lightyears b. 6.8 × 10^9 lightyears c. 9.9 × 10^8 lightyears d. 2.2 × 10^9 lightyears e. 6.5 × 10^6 lightyears