Why do the lunar maria have a darker color than the highland regions?
A. The maria have less regolith than the highlands.
B. The maria are younger and experienced fewer impacts to weather the surface.
C. The maria are composed of different materials than the highlands.
D. The maria are sitting in the shadows of surrounding mountains.
Answer: C
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The Eiffel tower in Paris is made primarily of iron, whose coefficient of linear expansion is about 10 × 10^-6/°C. On a cold day when the temperature is –10°C the Eiffel tower is 300 meters tall. Its height on a hot day when the temperature is 40°C is
a. 300.0015 m b. 300.015 m c. 300.15 m d. 301.5 m e. 315 m
Charge: How many electrons are necessary to produce 1.0 C of negative charge? (e = 1.60 × 10-19 C)
A. 6.3 × 1018 B. 6.3 × 109 C. 1.6 × 1019 D. 1.6 × 109 E. 6.0 × 1023
Venus spins faster than any other terrestrial planet.
Answer the following statement true (T) or false (F)
If a K0 meson at rest decays in 0.80 × 10^?10 s, how far will a K0 meson moving at 0.96c travel through a bubble chamber? (c = 3.00 × 10^8 m/s)
a. 8.2E–2 m b. 2.3E–2 m c. 6.5E–3 m d. 1.2E–1 m e. 4.6E–3 m