A cube of aluminum is at a depth of 1.00 km under water whose density is 
The bulk stress on the cube due to the water is
a. 
b. 
c. 
d. 
e. 
b.
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Indicate whether the statement is true or false
Capacitors in Combination: A potential difference of V = 100 V is applied across two capacitors in series, as shown in the figure. If C1 = 10.0 ?F and the voltage drop across it is 75 V, what is the capacitance of C2? 
A. 30 ?F B. 2.5 ?F C. 7.5 ?F D. 3.3 ?F
In constructing a thermometer it is NECESSARY to use a substance that:
A. expands with rising temperature B. expands linearly with rising temperature C. will not freeze D. will not boil E. undergoes some change when heated or cooled
A heavy neutral atom, such as iron, produces many spectral lines compared to light elements like hydrogen and helium. Why?
A) Because of the larger number of electrons and corresponding energy levels, more transitions are possible. B) Because of the larger number of electrons, there are many ionization levels possible. C) Because of the larger number protons, the amount of force holding the electrons to the atom can vary between different iron atoms. D) Because of the atom's larger size, it will be hit by more photons in a beam of light.