Pluto is both a KBO and a dwarf planet
a. True
b. False
Indicate whether the statement is true or false
True
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Sunlight takes about 8.4 minutes to travel from the Sun to Earth. When NASA's New Horizons Spacecraft passed Pluto in 2015, it was about 32 AU from Earth. About how long did it take for transmitted images of Pluto to travel from the spacecraft to Earth?
A) one Plutonian year B) 4-1/2 hours C) 2-1/4 days D) 3 weeks E) They arrived almost instantaneously.
What scattering angle in the Compton effect produces the minimum change in frequency?
A) 45° B) 90° C) 0° D) 180° E) 270°
The bulk modulus of aluminum is
If the density of aluminum is
then what is the speed of sound in aluminum?
A. 4,500 m/s B. 4,700 m/s C. 4,900 m/s D. 5,100 m/s E. 5,500 m/s
Two important properties of young neutron stars are
A) extremely rapid rotation and a weak magnetic field. B) extremely slow rotation and a strong magnetic field. C) extremely rapid rotation and a strong magnetic field. D) no rotation and a weak magnetic field. E) no rotation and no magnetic field.