Are the higher-order spectra more accurate than lower-order ones in determining wavelengths of light? Why or why not?
The higher orders are more accurate because there is a greater spread of the spectrum
lines and the measurements are generally more accurate.
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What is the average kinetic energy of an oxygen molecule in a gas with a temperature of 300K?
a. 
b. 
c. 
d. 
e. 
Stable nuclei with mass numbers greater than 40 have
A) M > N + Z. B) M < N + Z. C) Z > N. D) N > M. E) N > Z.
How did Mars get its two moons? a. Mars captured asteroids from the asteroid belt
b. Mars suffered a catastrophic meteor impact, breaking a piece off the planet. c. Mars had planetary bodies near it when the solar wind blew out the nebula. d. Mars collided and fused with another planet leaving two remnants behind. e. Mars captured comets from the Kuiper belt.
According to Gwen back on Earth, about how long does it take Jackie to reach Vega?
A) about a month B) about 10 years C) about 25 years D) about 100 years E) about 1,000 years