Which of the following compounds should be named using the Stock system?
a. Ag2O
b. Au2S
c. ZnO
d. Al2O3
b
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The radius of a typical nucleus is about 5 × 10-15 m
Assuming this to be the uncertainty in the position of a proton in the nucleus, estimate the uncertainty in the proton's energy, in MeV. (mproton = 1.67 × 10-27 kg, h = 6.626 × 10-34 J ? s, 1 eV = 1.6 × 10-19 J) A) 0.8 MeV B) 1.0 MeV C) 0.6 MeV D) 0.4 MeV
On each given day and location, tides rise and fall at
A) about the same time. B) exactly the same time. C) different times. D) ever increasing rates daily.
Interference is a property of
A) sound waves. B) water waves. C) light waves. D) all of the above E) none of the above
Because of the great masses and speeds involved, Newton's laws are useless in measuring the mass of a galaxy
Indicate whether the statement is true or false