A 1.00-kg duck is flying overhead at 1.50 m/s when a hunter fires straight up. The 0.0100-kg bullet is moving 200 m/s when it hits the duck and stays lodged in the duck's body. What is the speed of the duck and bullet immediately after the hit?
a. 1.49 m/s
c. 2.48 m/s
b. 1.80 m/s
d. 2.50 m/s
C
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What is the hardness of diamond on the Mohs scale?
a. 1 b. 4 c. 7 d. 10
Exhibit 12-1
The figure below shows a graph of angular velocity versus time for a woman bicycling around a circular track.
?
?
Use this exhibit to answer the following question(s).
Refer to . How many revolutions does she complete in the first 12 minutes?
a.
4
b.
8
c.
12
d.
16
e.
32
Equal-wavelength waves of amplitude 0.27 m and 0.13 m interfere with one another. What is the resulting minimum amplitude that can result?
a. 0.13 m b. 0.14 m c. 0 m d. ?0.40 m e. 0.20 m
A brass plate measures 30.0 cm by 40.0 cm. The coefficient of linear thermal expansion is 
If the temperature of the plate is increased by 10.0 K, then what is the increase in the area of the plate?
A. 0.350 cm2 B. 0.404 cm2 C. 0.456 cm2 D. 0.502 cm2 E. 0.555%