Based on the law of conservation of angular momentum, what would happen to a collapsing cloud of gas and dust--isolated in space with no external forces--as its size decreases?
Choose one:
A. The cloud will gain mass.
B. The cloud will spin more slowly.
C. The cloud will lose mass.
D. The cloud will not be able to collapse at all.
E. The cloud will spin faster.
E. The cloud will spin faster.
You might also like to view...
Say you are on the top of Mount Nittany. How does the force of gravity compare to what it would be at the bottom of Happy Valley?
A) two times greater on Mount Nittany than in Happy Valley B) exactly equal on Mount Nittany and in Happy Valley C) two times less on Mount Nittany than in Happy Valley D) slightly less on Mount Nittany than in Happy Valley E) slightly greater on Mount Nittany than in Happy Valley
What do we mean by "The Oxygen Crisis" in relation to the evolution of life on Earth?
A) the extinction of older anaerobic life as oxygen builds up in the atmosphere B) the time period before the development of the ozone layer C) a period when evolution accelerated so rapidly that there was insufficient oxygen available D) the destruction of oxygen in the early atmosphere
Surrounding every moving electron is
A) a magnetic field. B) an electric field. C) both of these D) neither of these
Identical point charges (+50 ?C) are placed at the corners of a square with sides of 2.0-m length. How much external energy is required to bring a fifth identical charge from infinity to the geometric center of the square?
a. 41 J b. 16 J c. 64 J d. 10 J e. 80 J