Author Question: The oxygen molecules and the nitrogen molecules at any one place in our atmosphere are at the same ... (Read 118 times)

frankwu · **on:** Jul 29, 2018

The oxygen molecules and the nitrogen molecules at any one place in our atmosphere are at the same temperature. How do the root-mean-square speeds of the two molecules compare?

A) same
B) N2 > O2
C) O2 > N2

Question 2

The maximum permissible workday dose for occupational exposure to radiation is 18 mrem. A 54-kg laboratory technician absorbs 2.6 mJ of 0.30-MeV gamma rays in a work day.

The relative biological effectiveness (RBE) for gamma rays is 1.00. What is the ratio of the equivalent dosage received by the technician to the maximum permissible equivalent dosage?
A) 0.27
B) 0.29
C) 0.32
D) 0.35
E) 0.37