Listed following are characteristics that can identify a planet as either terrestrial or jovian. Match these to the appropriate category. Consider only the planets of our own solar system.
What will be an ideal response?
Answer:
-terrestrial planets: small size, solid, rocky surface, locate within the inner solar system
-jovian planets: primarily composed of hydrogen, helium, and hydrogen compounds, numerous orbiting moons, low average density, extensive ring systems
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In our galaxy, once we look outside the inner regions, the disk rotates at
A: a much faster speed in the outer regions than in the inner regions. B: a much slower speed in the outer regions than in the inner regions. C: about the same speed at various distances from the center of the galaxy
Lillian safely touches a 100,000-volt Van de Graaff generator. Although the voltage is high, the relatively small amount of charge means a relatively small amount of
A) energy transfer. B) electric field. C) polarization. D) conduction.
Which of the following is a unit of energy:
a. watt b. ft—lb/sec c. newton/sec. d. horsepower e. joule
Which of the following compounds would best serve as a starting point for its production?
Formaldehyde is a toxic preservative with the following chemical formula: H2C=O A) H3COH B) H2C=CH2 C) H2O D) CH3CH2OH E) none of the above