Ch09 - Chapter 9 Solids and Fluids CHAPTER 9 1 Which state of matter is associated with the very highest of temperatures a liquid b plasma c gas d

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 9, Solids and Fluids C HAPTER 9 1. Which state of matter is associated with the very highest of temperatures? a. liquid b. plasma c. gas d. solid 2. A copper wire of length 2.0 m, cross sectional area 7.1 × 10 6 m 2 and Young’s modulus 11 × 10 10 N/m 2 has a 200-kg load hung on it. What is its increase in length? ( g = 9.8 m/s 2 ) a. 0.50 mm b. 1.0 mm c. 2.5 mm d. 5.0 mm 3. What is the total force on the bottom of a 2.0-m-diameter by 1.0-m-deep round wading pool due to the weight of the air and the weight of the water? (Note the pressure contribution from the atmosphere is 1.0 × 10 5 N/m 2 , the density of water is 1 000 kg/m 3 , and g = 9.8 m/s 2 .) a. 3.4 × 10 5 N b. 2.4 × 10 6 N c. 3.2 × 10 6 N d. 6.0 × 10 6 N 5. A piece of aluminum has density 2.70 g/cm 3 and mass 775 g. The aluminum is submerged in a container of oil (oil’s density = 0.650 g/cm 3 ). How much oil does the metal displace? a. 287 cm 3 b. 309 cm 3 c. 232 cm 3 d. 1 125 cm 3 104
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 9, Solids and Fluids 6. A piece of aluminum has density 2.70 g/cm 3 and mass 775 g. The aluminum is submerged in a container of oil of density 0.650 g/cm 3 . A spring balance is attached with string to the piece of aluminum. What reading will the balance register in grams (g) for the submerged metal? a. 960 g b. 775 g c. 588 g d. 190 g 7. A block of wood has density 0.50 g/cm 3 and mass 1 500 g. It floats in a container of oil (the oil’s density is 0.75 g/cm 3 ). What volume of oil does the wood displace? a. 3 000 cm 3 b. 2 000 cm 3 c. 1 500 cm 3 d. 1 000 cm 3 11. In a large tank of liquid, the hydrostatic pressure at a given depth is a function of: a. depth b. surface area c. liquid density d. choices a and c are both valid 14. A 15 000-N car on a hydraulic lift rests on a cylinder with a piston of radius 0.20 m. If a connecting cylinder with a piston of 0.040-m radius is driven by compressed air, what force must be applied to this smaller piston in order to lift the car? a. 600 N b. 1 500 N c. 3 000 N d. 15 000 N 15. By what factor is the total pressure greater at a depth of 850 m in water than at the surface where pressure is one atmosphere? (water density = 1.0 × 10 3 kg/m 3 , 1 atmosphere pressure = 1.01 × 10 5 N/m 2 and g = 9.8 m/s 2 ) a. 100 b. 83 c. 74 d. 19 16. What volume of water is displaced by a submerged 2.0-kg cylinder made of solid aluminum? (aluminum density = 2.7 × 10 3 kg/m 3 and water density = 1.0 × 10 3 kg/m 3 ) a. 7.4 × l0 4 m 3 b. 1.4 × 10 3 m 3 c. 9.9 × 10 3 m 3 d. 6.0 × 10 2 m 3 105
Background image of page 2
Chapter 9, Solids and Fluids 17. A ping-pong ball has an average density of 0.0840 g/cm 3 and a diameter of 3.80 cm. What force would be required to keep the ball completely submerged under water? a. 1.000 N
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/25/2008 for the course PHY 231C taught by Professor Pratt during the Spring '06 term at Michigan State University.

Page1 / 11

Ch09 - Chapter 9 Solids and Fluids CHAPTER 9 1 Which state of matter is associated with the very highest of temperatures a liquid b plasma c gas d

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online