The cosmic microwave background is:
A) redshifted in the direction of Earth's motion.
B) redshifted in the direction of the Sun's motion.
C) redshifted in the direction of the center of the Milky Way.
D) blueshifted in the direction of Earth's motion.
E) blueshifted in the direction of the Virgo Cluster.
Question 2
If the Sun were replaced by a one solar mass black hole:
A) all terrestrial planets would fall in immediately.
B) we would still orbit it in a period of one year.
C) we would immediately escape into deep space, driven out by its radiation.
D) our clocks would all stop.
E) life here would be unchanged.
Range of Motion of the Shoulder Joint, Abduction, Adduction
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
Spectral Line Motion in Binary Star Systems
Escape Speed from Earth
Gravitational Potential Energy for the Earth problem
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...