Why are collisions between asteroids in the asteroid belt rare?
A) The average distance between asteroids is millions of kilometers.
B) All asteroids orbit in perfect circular orbits at the same speed.
C) Jupiter's gravity keeps asteroids apart.
D) The gas surrounding the asteroids help them repel each other before colliding.
E) There are only a few asteroids in the solar system.
A) The average distance between asteroids is millions of kilometers.
You might also like to view...
A star with a parallax angle of 1/20 arcsecond is
A) 20 light-years away. B) 1/20 parsec away. C) 20 parsecs away. D) 10 parsecs away.
A substance is allowed to diffuse along a 10-cm length of tubing filled with water. The cross section of the tube is 5.3 cm2 . If the diffusion coefficient is 5.0 × 10^¯10 m2/s, and 6.5 × 10^¯14 kg is transported along the tube in 16 s, what is the difference in the concentration levels of the substance at the two ends of the tube?
a. 3.9E–1 kg/m3 b. 4.3E–2 kg/m3 c. 1.5E–3 kg/m3 d. 8.1E–4 kg/m3
How does the force of gravity between galaxies affect the recessional velocity of the galaxies? How would this affect the value of Hubble's constant? The calculated age of the universe? Explain your answers
A high tide is occurring at Charleston, South Carolina (151°W, 36°N). At approximately what other longitude is a high tide occurring?
a. 29°E b. 151°E c. 61°E d. 61°W e. 29°W