Which of the following materials present in the solar system had the highest condensation temperatures?
A) metals
B) rocks
C) hydrogen and helium gases
D) hydrogen compounds like water, methane, and ammonia
A
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Which of these will the Sun probably become in the very distant future?
A) Hypernova B) Supernova C) Pulsar D) Planetary nebula E) Nova
Only ________ stars have rotation periods of less than a second
Fill in the blank(s) with correct word
Air with a density of 1.20 
flows through a 75.0 cm diameter pipe with a velocity of 2.00 m/s. What is the mass flow rate?
A. 0.95 kg/s B. 1.06 kg/s C. 1.20 kg/s D. 1.26 kg/s E. 1.48 kg/s
Thermal Expansion: The coefficient of linear expansion of copper is 17 × 10-6 K-1. A block of copper 30 cm wide, 45 cm long, and 10 cm thick is heated from 0°C to 100°C What is the change in the volume of the block?
A. 2.3 × 10-5 m3 B. 4.6 × 10-5 m3 C. 5.2 × 10-5 m3 D. 6.9 × 10-5 m3 E. 14 × 10-5 m3