The process of formation of the Solar System
a) involved the Sun forming from the collapse of a large planet.
b) began about 10 million years ago.
c) led to the formation of the most massive planets closest to the Sun and the least massivefarthest away.
d) involved a spinning cloud of gas that remained spherical until after the planets andSun formed.
e) took only a small fraction of the age of the Solar System.
Ans: e) took only a small fraction of the age of the Solar System.
You might also like to view...
If we could put all the asteroids in the asteroid belt together, their total mass would be
A) much less than the mass of Mercury. B) about the mass of Jupiter. C) about the mass of Earth. D) greater than the mass of Earth but less than the mass of Neptune.
After a supernova explosion, the remains of the stellar core can be
A) either a neutron star or a black hole. B) a neutron star only. C) a black hole only. D) a white dwarf, neutron star, or black hole.
What evidence suggests that long gamma ray bursts originate from supernovae of stars massive enough to form black holes?
A) Some gamma ray bursts have been found to originate with galaxies that are actively forming stars, and would thus have a few very massive (but short lived) stars. B) Rapid observations in other wavelengths show that some gamma ray bursts coincide with points showing typical supernova light curves. C) The locations of gamma ray bursts suddenly begin blocking light from more distant stars. D) A and B E) B and C
If the current increases in a solenoid, the induced emf acts to
A) decrease the flux. B) increase the flux. C) first increase then decrease the flux. D) first decrease then increase the flux. E) have no effect on the flux.