Which Jovian moon has gotten the most attention from exobiologists?
A) Miranda B) Europa C) Ariel D) Io E) Triton
B
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A rod system with a uniform linear density of l = 4.40 kg/m has the shape shown in the figure, with rod 1 the vertical rod and rod 2 the horizontal rod. Rod 1 has length L1 = 8.00 m, and rod 2 has length L2 = 7.50 m. Neglect the diameter of the rods
?
What is the center of mass of the system?
a.
(1.29 m, 3.31 m)
b.
(2.06 m, 3.10 m)
c.
(3.31 m, 1.29 m)
d.
(3.10 m, 2.06 m)
Kinetic Energy: What is the total energy of an electron moving with a speed of 0.950c? (c = 3.0 × 108 m/s, mel = 9.11 × 10-31 kg)
A. 2.6 × 10-13 J B. 8.2 × 10-14 J C. 1.1 × 10-13 J D. 1.2 × 10-14 J
An ideal gas with ? = 1.67 is initially at 0°C in a volume of 10.0 L at a pressure of 1.00 atm. It is then expanded adiabatically to a volume of 10.4 L. What is the final temperature of the gas?
A) -7.1°C B) 2.5°C C) -23°C D) 68°C E) -20°C
Which planet can we see occasionally transit across the face of the Sun?
A) Mercury B) Mars C) Jupiter D) Uranus E) all of the above