A 5.0-liter gas tank holds 1.7 moles of monatomic helium (He) and 1.10 mole of diatomic oxygen (O2), at a temperature of 260 K
The ATOMIC masses of helium and oxygen are
4.0 g/mol and 16.0 g/mol, respectively. What is the ratio of the root-mean-square (thermal) speed of helium to that of oxygen?
A) 1.4
B) 2.0
C) 2.8
D) 4.0
E) 5.6
Answer: C
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The SAE grade (e.g. SAE 20W) is an indicator of oil
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If body M, with a positive charge, is used to charge body N by induction, what will be the nature of the charge left on the latter?
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