Which of the following is true of the star clusters in the Milky Way?
A) Open clusters are concentrated along the disk of the Milky Way.
B) Globular clusters are concentrated along the disk of the Milky Way.
C) Open clusters are more common toward the constellation Sagittarius.
D) Globular clusters are more common toward the constellation Aquarius.
A
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Of the temperature ranges below, which range represents the smallest range of actual temperature?
A) 50-100° Kelvin B) 50-100° Celsius C) 50-100° Fahrenheit D) They all represent the same change in temperature.
A 4.00-kg block slides down a frictionless inclined plane with an acceleration 3.00 m/s2. What is the angle of the incline above horizontal?
A) 35.3° B) 45.2° C) 17.8° D) 23.6° E) 53.7°
The element ______________ was the gas used in the Hindenburg
Fill in the blank(s) with correct word
What is the energy of a photon emitted in a transition from the n = 3 state to the n = 2 state in He+?
A. 15.1 eV B. 7.56 eV C. 3.78 eV D. 2.12 eV E. 1.89 eV