What is the wavelength of the line in the Paschen series of hydrogen that is comprised of transitions from the n = 5 to the n = 3 levels? (R = 1.097 × 10^7 m?1 and 1 nm = 10?9 m)
a. 1406 nm
b. 1282 nm
c. 684 nm
d. 750 nm
e. 365 nm
b
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If an AC circuit consists of a 220 mH inductor in series with a 75 k
resistor and an AC generator with rms voltage of 12 V. If the frequency of the generator is 25 kHz, what is the rms voltage drop across the inductor?
A. 7.0 V B. 2.6 V C. 9.4 V D. 5.0 V
How does the density of copper at its melting point of 1356 K compare to that of copper at room temperature, 293 K? Its linear expansion coefficient is 
A. 1.054 times as large B. 1.018 times as large C. 0.946 times as large D. 0.982 times as large E. 0.947 times as large
If you toss a ball straight upward at 40 m/s with no air resistance, 6 seconds later its speed is
A) zero. B) 10 m/s. C) 20 m/s. D) 30 m/s E) 40 m/s.
On which planet (other than Earth) have air bags been deployed?
a. Venus b. Mars c. Mercury d. Saturn