Which spectral type represents stars with spectra that peak at the shortest ultraviolet wavelengths?
A) O
B) B
C) G
D) K
E) M
A) O
Physics & Space Science
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What is the self-inductance of a solenoid 30.0 cm long having 100 turns of wire and a cross-sectional area of 1.00 × 10-4 m2? (?0 = 4? × 10-7 T ? m/A)
A) 4.19 µH B) 4.19 nH C) 4.19 mH D) 4.19 H E) 4.19 pH
Physics & Space Science
The light bulbs in this circuit are connected in
a.
parallel.
b.
series.
c.
neither parallel nor series.
d.
a short circuit.
Physics & Space Science
Which of the following is a eutectoid reaction?
Physics & Space Science
A kilometer contains 1 million meters
a. True b. False Indicate whether the statement is true or false
Physics & Space Science