Quiz5_solutions

Quiz5_solutions - Physics 2 Summer Session 2008 Quiz # 5...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 2 – Summer Session 2008 Quiz # 5 Question 1 Consider four objects A, B, C, and D. It is found that A and B are in thermal equilibrium. It is also found that C and D are in thermal equilibrium. However, A and C are not in thermal equilibrium. One can conclude that (a) B and D are in thermal equilibrium (b) B and D are not in thermal equilibrium (c) B and D could be in thermal equilibrium, but might not be (d) The zeroth law of thermodynamics does not apply here because there are more than three objects Thermal equilibrium: they have the same temperature. When expressed in these terms, it is clear that the correct answer is (b). Question 2 Six molecules have the speeds (in arbitrary units) of 2, 2, 4, 8, 4, 10. What is the rms speed (to the nearest integer) of the molecules (a) 3 (b) 19 (c) 4 (d) 5 (e) 6 (V 2 ) AV = 1/6 ( 2 2 + 2 2 +4 2 +8 2 +4 2 +10 2 ) = 34. Take the sqrt of this, obtain 5.8 Æ Correct answer is (e) Question 3 The active element of a certain laser is a glass rod 32.0 cm long by 1.75 cm in diameter.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/27/2009 for the course PHYS PHYS 2 taught by Professor Campagnari during the Summer '08 term at UCSB.

Page1 / 3

Quiz5_solutions - Physics 2 Summer Session 2008 Quiz # 5...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online