The disk component of the Milky Way Galaxy has an overall relatively _____ color
A) red
B) orange
C) yellow
D) blue
D
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How do comets differ from asteroids?
A) Comets contain much larger proportions of ice than asteroids. B) Comets contain much smaller proportions of ice than asteroids. C) Comets are much larger in size than asteroids. D) Comets are much smaller in size than asteroids.
What is the power output of a hot air furnace that produces heat at the rate of 160,000. BTU/hr?
A) 22 kW B) 80 kW C) 47 kW D) 7.6 kW E) 1.6 kW
The molecular mass for chlorine is not an integer multiple of the molecular mass of hydrogen but is about 35.5 times the molecular mass of hydrogen. This is primarily because
a. the proton and neutron have different masses. b. there are different isotopes of chlorine. c. of the binding energy of the chlorine nucleus. d. the chlorine nucleus has 35.5 nucleons.
The Moon always presents the same face to Earth because
a. the Moon does not rotate on its axis. b. the Moon rotates on its axis at same rate at which it revolves around Earth. c. the Moon revolves around the Sun in one month. d. none of these