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

Physics & Space Science

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______ refers to the amount of vertical spacing between lines of text.

A. Leading B. Tracking C. Kerning D. Indenting

Physics & Space Science

"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

Physics & Space Science

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.

Physics & Space Science

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

Physics & Space Science