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Unformatted text preview: 7.4 × 104 N
d. 7.4 × 104 Pa
72. Find the maximum compressive force that can
be withstood by the bone.
a. 1.05 × 105 N
b. 1.05 × 105 Pa
c. 7.4 × 104 N
d. 7.4 × 104 Pa
73. Examine figure 1: find the maximum
compressive stress that can be withstood by
the bone.
a. 1.05 × 105 N
b. 17 × 107 Pa
c. 7.4 × 104 N
d. 11 × 107 Pa
74. Examine figure 1: at which of the 4 points
highlighted along the curve does Hooke’s law
not apply?
a. only i)
b. only iii)
c. both i) and ii)
d. both iii) and iv) Page 11 of 15 ©Prep101
75. Examine figure 1: you conduct a 2 point
experiment to determine the youngs modulus
of bone. If you test the stress strain
realationship on just 2 of the four points
highlighted in figure one, which pair of points
will give you the lowest youngs modulus?
a. i) and ii)
b. ii) and iii)
c. iii) and iv)
d. i) and iv) 78. A stationary 4 kg shell explodes into three
peaces. Two of the fragments have a mass of
1 kg each and move along the paths shown
with speed 10 m/s. The third fragment moves
upwards as shown. What is the speed of the
third fragment immediately after explosion? 76. Fire engine approaches a wall at 5.00 m/s while its siren emits a tone whose
frequency is 500 Hz. The speed of sound
in air is 340 m/s. How many beats per
second do the people on the fire engine
hear?
a.
b.
c.
d. 0.00
15.0
29.0
63.0 a. 0 m/s
b. 5 m/s
c. 10 m/s
d. 20 m/s 77. The water level in a vertical glass tube, of
length 1.00 meter, can be adjusted to any
position in the tube. A tuning fork vibrating at
660 Hz is held just over the open end of the
tube. At what positions of the water level will
there be a loud resonance for air at 30°C,
given that the speed of sound in air at 30°C is
349 m/s?
a. 5 cm
b. 7.5 cm
c. 10 cm
d. 12.5 cm 79. A 1000 kg motorboat traveling at 5 m/s strikes
a 5000 kg ship at rest. Both vessels dock
together after collision. What will be the speed
of both vessels just after the collision?
77. 0.63 m/s
78. 0.73 m/s
79. 0.83 m/s
80. 0.93 m/s
80. A wire has a resistance of 3...
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This note was uploaded on 03/23/2011 for the course CHEM 100 taught by Professor Vallis during the Spring '11 term at Dalhousie.
 Spring '11
 Vallis
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