Saturday, February 25, 2012

What prevents the pressure from increasing as a cloud contracts due to its gravity?

A) Excess pressure is released in jets of material from the young stars.

B) As the cloud becomes denser, gravity becomes stronger and overcomes the pressure buildup.

C) Once the cloud reaches a critical density, the pressure becomes degenerate and independent of temperature.

D) The pressure is transferred from the center of the cloud to its outer edges where it can dissipate.

E) Thermal energy is converted to radiative energy via molecular collisions and released as photons.What prevents the pressure from increasing as a cloud contracts due to its gravity?
B) is the only answers which is correct, the other answers seem to go against elementary physics laws.What prevents the pressure from increasing as a cloud contracts due to its gravity?
Just a note. Doing an online homework assignment and B was not right. The answer was E, Thermal Energy is converted to radiative energy via molecular collisions and released as photons. Also this answer does make sense, it's essentially saying as pressure increases nuclear fusion happens.

Report Abuse

No comments:

Post a Comment