- Calculate the buoyancy force acting on a partially
immersed boat (V2.0 m
3
). The density of water is
1000 kg /m
3
.
- Calculate the buoyancy force acting on a partially
- 4 0. How many 5-in.-diameter, 1/4-in.-thick disks can be
fitted into a 4-ft long, 5 1/4-diameter cylindrical
container? - 4 1. In the U.S., the fuel consumption of an automobile is
expressed in Xmiles per gallon. Obtain a single factor
that could be used to convert the Xmiles per gallon to
km per liter. - 4 2. Calculate the arc length S 1 in the accompanying figure.
R 2 8 cm, R 1 5 cm, and S 2 6.28 cm. - 4 3. A 10-cm-long rectangular bar (when subjected to a ten-
sile load) deforms by 0.1 mm. Calculate the normal
strain. - 4 4. Calculate the volume of material used in making 100 ft
of 4-in. type K copper tubing. - 4 5. Calculate the volume of material used in making 100 ft
of 4-in. type L copper tubing.
7.46. Calculate the volume of material used in making 100 ft
of 4-in. type M copper tubing.
- By what factor do you increase the resistance to bend-
ing (about x–xaxis) if you were to use W18 76
beam over W831?
- By what factor do you increase the resistance to bend-
- 4 8. By what factor do you increase the resistance to bend-
ing (about y–yaxis) if you were to use W18 76
beam over W831? - 4 9. Estimate the frontal area (excluding the display
panel) of the cell phone shown in the accompanying
figure.
7.50. Estimate the frontal area of the car shown in the
accompanying figure.
R 1
S 1
S 2
θ
R 2
8 cm
13 cm
Problem 7.42
Problem 7.49
68.5 in.
50.9 in.
Problem 7.50
Problems 195
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