What is the angle between the noon sun on the winter solstice and the southern horizon for an observer at a latitude of 38° N?
a. 38°
b. 52°
c. 75.5°
d. 28.5°
e. 14.5°
D
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A 6.00 kg mass is located at (2.00 m, 2.00 m, 2.00 m) and a 5.00 kg mass is located at (–1.0 m, 3.00 m,–2.00 m). If this system of masses rotated about the Y-axis perpendicular to the Z-X plane, then the moment of inertia of this system is
A. 73 kg 
B. 66 kg
C. 60 kg
D. 55 kg
E. 48 kg
A bullet fired horizontally over level ground hits the ground in 0.5 second. If it had been fired with twice the speed it would have hit the ground in
A) less than 0.5 s. B) 0.5 s. C) more than 0.5 s.
Find the orbital speed of an ice cube in the rings of Saturn
The mass of Saturn is 5.68 × 1026 kg and the rings have an average radius of 100,000 km. (G = 6.67 × 10-11 N ? m2/kg2) A) 27.5 km/s B) 13.8 km/s C) 1.95 km/s D) 19.5 km/s
A rectangular loop of wire measures 1.0 m by 1.0 cm. If a 7.0-A current flows through the wire, what is the magnitude of the magnetic force on the centermost 1.0-cm segment of the 1.0-m side of the loop? (?0 = 4? × 10-7 T ? m/A)
A) 4.9 × 10-6 N B) 9.8 × 10-8 N C) 9.8 × 10-6 N D) 7.8 × 10-7 N