Chapter 18: Q. (page 511)
A hollow aluminum sphere with outer diameter 10.0 cm has a
mass of 690 g. What is the sphere’s inner diameter?
The solution gives the aluminium sphere and its inner diameter.
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The cylinder in FIGURE Q18.4 is divided into two compartments by a frictionless piston that can slide back and forth. If the piston is in equilibrium, is the pressure on the left side greater than, less than, or equal to the pressure on the right? Explain.
FIGURE Q18.4
The atomic mass number of copper is . Assume that atoms in solid copper form a cubic crystal lattice. To envision this, imagine that you place atoms at the centers of tiny sugar cubes, then stack the little sugar cubes to form a big cube. If you dissolve the sugar, the atoms left behind are in a cubic crystal lattice. What is the smallest distance between two copper atoms?
A concrete bridge is built of 325-cm-long concrete slabs with an expansion joint between them. The slabs just touch on a day, the hottest day for which the bridge is designed. What is the gap between the slabs when the temperature is ?
The U-shaped tube in FIGURE P18.57 has a total length of . It is open at one end, closed at the other, and is initially filled with air at pressure.
Mercury is poured slowly into the open end without letting any air escape, thus compressing the air. This is continued until the open side of the tube is completely filled with mercury. What is the length of the column of mercury?
How many atoms are in a 2.0 cm * 2.0 cm * 2.0 cm cube of
aluminum?
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