3 1. The density of mercury is 1.36 × 10¹ kg/m³. What is the mass of a 2.16 × 10-m³ sample of mercury? A) 0.0343 kg B) 0.002 94 kg C) 2.94 kg D) 5.44 kg E) 6.29 kg

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Chapter1: Units, Trigonometry. And Vectors
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1. The density of mercury is 1.36 × 10¹ kg/m³. What is the mass of a 2.16 × 10^-m³ sample of
mercury?
A) 0.0343 kg
B) 0.002 94 kg
C) 2.94 kg
D) 5.44 kg
E) 6.29 kg
2. In the produce section of a supermarket, five pears are placed on a spring scale. The
placement of the pears stretches the spring and causes the dial to move from zero to a reading of
2.0 kg. If the spring constant is 450 N/m, what is the displacement of the spring due to the
weight of the pears?
2
0
kg
00
A) 0.0044 m
B) 0.0088 m
C) 0.018 m
D) 0.044 m
E) 0.088 m
-27
24
3
3. The average density of the material in intergalactic space is approximately 2.5 × 10²7 kg/m².
What is the volume of a lead sample, = 11 300 kg/m³, that has the same mass as 8.0 × 10²4 m³
of intergalactic space?
3
A) 1.0 × 10 m
3
B) 2.2 x 10 m
-6 3
C) 5.4 x 10 m
-5 3
D) 3.6 107 m
E) 1.8 x 10
3
m
Transcribed Image Text:3 1. The density of mercury is 1.36 × 10¹ kg/m³. What is the mass of a 2.16 × 10^-m³ sample of mercury? A) 0.0343 kg B) 0.002 94 kg C) 2.94 kg D) 5.44 kg E) 6.29 kg 2. In the produce section of a supermarket, five pears are placed on a spring scale. The placement of the pears stretches the spring and causes the dial to move from zero to a reading of 2.0 kg. If the spring constant is 450 N/m, what is the displacement of the spring due to the weight of the pears? 2 0 kg 00 A) 0.0044 m B) 0.0088 m C) 0.018 m D) 0.044 m E) 0.088 m -27 24 3 3. The average density of the material in intergalactic space is approximately 2.5 × 10²7 kg/m². What is the volume of a lead sample, = 11 300 kg/m³, that has the same mass as 8.0 × 10²4 m³ of intergalactic space? 3 A) 1.0 × 10 m 3 B) 2.2 x 10 m -6 3 C) 5.4 x 10 m -5 3 D) 3.6 107 m E) 1.8 x 10 3 m
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