If a star orbits the MWG high above the galactic disk in the halo, what type of star is it?
A. Dark Matter Star
B. Pop II
C. That's no star!
D. Pop I
Ans: B. Pop II
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At the Earth's surface, approximately 1000 W/m2 is present due to solar radiation. If 1390 W are incident upon a 1.0 m x 1.5 m window in a vertical, south-facing wall at this time, what is the angle with respect to the vertical of the sun’s rays?
A. 
B. 
C. 
D. 
E. 
F. 
Momentum is conserved during a completely inelastic collision
Indicate whether the statement is true or false
A 55-cm brass rod has a diameter of 30 cm. The compressive strength of steel is 250 × 106 N/m2. What is the compression force that would break the rod?
A) 1.8 × 107 N B) 2.4 × 107 N C) 1.4 × 108 N D) 2.4 × 108 N E) 4.5 × 108 N
Electric potential, measured in volts, is the ratio of electric energy to the amount of electric
A) current. B) resistance. C) charge. D) voltage. E) none of the above