Your friend Zach can inhale to create a gauge pressure of -70 mm of Hg (density of Hg = 13.6 g/cm3).The height of water (density of water = 1 g/cm3)Zach can raise in a straw is

A) 95.2 cm. B) 66.2 cm. C) 45.9 cm. D) 32.1 cm. E) 19.2 cm. A) 95.2 cm. B) 66.2 cm. C) 45.9 cm. D) 32.1 cm. E) 19.2 cm. A

Two wires of the same material are stretched by equal forces,but L1 = 2L2 and d1 = 2d2,where L and d are the lengths and diameters of the two wires.The ratio of the stresses stress1/stress2 is

A) 1. B) 2. C) 4. D) ½. E) ¼. A) 1. B) 2. C) 4. D) ½. E) ¼. E

In 1964 the freighter Al Kuwait (mass 2.02 * 106 kg)sank in Kuwait harbor.It was re-floated by filling its hull with polystyrene beads.If the density of sea water is 1025 kg/m3,the density of the beads was 28.0 kg/m3,and the average volume of the beads were 7.45 * 10-5 m3,find how many beads were required.Ignore the buoyant force of the steel in the ship.

A) 19.8 million B) 26.5 million C) 27.2 million D) 28.0 million E) 96.8 million A) 19.8 million B) 26.5 million C) 27.2 million D) 28.0 million E) 96.8 million

The Earth's atmosphere is composed (by volume)of 78.08% nitrogen (N2),20.95% oxygen (O2),0.93% argon (Ar),0.25% water vapor (H2O),and traces of other gases,most importantly,carbon dioxide (CO2).The CO2 content of the atmosphere is currently around 0.039%.The average mass of a mole of the atmosphere is 28.96 g and the molar mass of carbon dioxide is 44 g.What is the total mass of CO2 in the Earth's atmosphere?

A) 2.05·1015 kg B) 3.11·1015 kg C) 4.86·1015 kg D) 7.97·1018 kg E) 5.25·1018 kg A) 2.05·1015 kg B) 3.11·1015 kg C) 4.86·1015 kg D) 7.97·1018 kg E) 5.25·1018 kg

Exam 13: Solids and Fluids

Your friend Zach can inhale to create a gauge pressure of -70 mm of Hg (density of Hg = 13.6 g/cm³).The height of water (density of water = 1 g/cm³)Zach can raise in a straw is

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(Multiple Choice)

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Question 1

Correct Answer:

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Two wires of the same material are stretched by equal forces,but L₁ = 2L₂ and d₁ = 2d₂,where L and d are the lengths and diameters of the two wires.The ratio of the stresses stress₁/stress₂ is

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(Multiple Choice)

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Question 2

Correct Answer:

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For climbing the Sawatch range of Rocky mountains you used a 50-m nylon rope of 10 mm diameter.You noticed the rope elongated by 1.50 m when it supported your 65-kg mass on one end.The Young's modulus of the rope material is

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Question 3

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A small cube of copper (density = 8930 kg/m³)is used to support a large cube of marble (density = 2560 kg/m³).The copper cube has sides of length 2.00 cm and is carefully placed on a flat,level table under the center of the cube of marble that has sides of length 30.0 cm.Given that the Young's modulus of copper is 110 GPa,by how much is the copper compressed?

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Question 4

A 6-cm cube of plastic floats in water with 1 cm of the cube above the water.What is the density of the cube?

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Question 5

A wind turbine is used to extract power from the wind.If the speed of the wind is doubled,the maximum power extracted from the wind will increase by a factor of

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Question 6

If two objects,one of lead and the other of aluminum,weigh the same in water,then

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Question 7

In 1964 the freighter Al Kuwait (mass 2.02 * 10⁶ kg)sank in Kuwait harbor.It was re-floated by filling its hull with polystyrene beads.If the density of sea water is 1025 kg/m³,the density of the beads was 28.0 kg/m³,and the average volume of the beads were 7.45 * 10^-5 m³,find how many beads were required.Ignore the buoyant force of the steel in the ship.

(Multiple Choice)

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Question 8

A wind turbine is used to extract power from the wind.If the area of the turbine is doubled,the maximum power extracted from the wind will increase by a factor of

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Question 9

The Earth's atmosphere is composed (by volume)of 78.08% nitrogen (N₂),20.95% oxygen (O₂),0.93% argon (Ar),0.25% water vapor (H₂O),and traces of other gases,most importantly,carbon dioxide (CO₂).The CO₂ content of the atmosphere is currently around 0.039%.The average mass of a mole of the atmosphere is 28.96 g and the molar mass of carbon dioxide is 44 g.What is the total mass of CO₂ in the Earth's atmosphere?

(Multiple Choice)

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Question 10

The solid wood cylinder madder of oak with a uniform density of 750 kg/m³ is dropped in the ocean,which has a density 1027 kg/m³.The diameter of the cylinder is 0.540 m and its height is 0.240 m.Assuming that the flat ends of the cylinder are parallel to the surface of the water and that the water is calm,the top of the cylinder will

(Multiple Choice)

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Question 11

A 1.0-g balloon is filled with helium gas.When a mass of 4.0 g is attached to the balloon,it is seen to be static equilibrium in mid air.Assuming the balloon is spherical,what is its diameter?

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Question 12

"16 castaways marooned in the South China Sea!" They construct a 50-kg raft made out of Pulau Tiga wood,which Rudy has determined its specific gravity to be 0.047.If each survivor has a mass 100 kg,what is the maximum number of survivors that can ride the raft without sinking? (Rich says that the density of sea water is 1.03 * 10³ kg/m³.)

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Question 13

A cube is 10 cm on an edge is suspended in water.The pressure

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Question 14

A supertanker filled with oil has a total mass of 14.5 * 10⁸ kg.If the dimensions of the ship are those of a rectangular box 275 meters long,90 meters wide,and 60 meters high,determine how far the bottom of the ship is below sea level.( $\rho$ _sea = 1020 kg/m³)

(Multiple Choice)

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Question 15

A plastic cup,15.0 cm in height,is filled to the rim with water and is resting on a table.A small hole is punctured in the cup at a height 9.00 cm above the bottom of the cup and is allowing water to spew out.What is the speed of the water when it strikes the table?

(Multiple Choice)

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Question 16

A solid object weighs 15.70 N in air.When it is suspended from a scale and submerged in water,the scale reads 5.30 N.Find the density of the object.(Use 1000.0 kg/m³ for the water density.)(in kg/m³)

(Multiple Choice)

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Question 17

A piece of cork (density = 0.33 g/cm³)with a mass of 10 g is held in place by a string attached to the bottom of the cork.If the cork is completely underwater in distilled water,what is the tension in the string?

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Question 18

The Earth's atmosphere is composed nitrogen (N₂),oxygen (O₂),argon (Ar),water vapor (H₂O),and traces of other gases.There are 6.74·10¹⁶ kg of argon in earth's atmosphere.The average mass of a mole of the atmosphere is 28.96 g and the molar mass of argon is 40 g.What is the percentage,by volume of argon in the Earth's atmosphere?

(Multiple Choice)

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Question 19

Find the pressure difference (in N/m²)between the inside and outside of a window which looks into a swimming pool 12 m below the surface.(The density of water is 1000 kg/m³.)

(Multiple Choice)

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Question 20

Showing 1 - 20 of 81

Exam 13: Solids and Fluids

Your friend Zach can inhale to create a gauge pressure of -70 mm of Hg (density of Hg = 13.6 g/cm3).The height of water (density of water = 1 g/cm3)Zach can raise in a straw is

Two wires of the same material are stretched by equal forces,but L1 = 2L2 and d1 = 2d2,where L and d are the lengths and diameters of the two wires.The ratio of the stresses stress1/stress2 is

For climbing the Sawatch range of Rocky mountains you used a 50-m nylon rope of 10 mm diameter.You noticed the rope elongated by 1.50 m when it supported your 65-kg mass on one end.The Young's modulus of the rope material is

A 6-cm cube of plastic floats in water with 1 cm of the cube above the water.What is the density of the cube?

A wind turbine is used to extract power from the wind.If the speed of the wind is doubled,the maximum power extracted from the wind will increase by a factor of

If two objects,one of lead and the other of aluminum,weigh the same in water,then

A wind turbine is used to extract power from the wind.If the area of the turbine is doubled,the maximum power extracted from the wind will increase by a factor of

A 1.0-g balloon is filled with helium gas.When a mass of 4.0 g is attached to the balloon,it is seen to be static equilibrium in mid air.Assuming the balloon is spherical,what is its diameter?

A cube is 10 cm on an edge is suspended in water.The pressure

A supertanker filled with oil has a total mass of 14.5 * 108 kg.If the dimensions of the ship are those of a rectangular box 275 meters long,90 meters wide,and 60 meters high,determine how far the bottom of the ship is below sea level.( ρ\rhoρ sea = 1020 kg/m3)

A plastic cup,15.0 cm in height,is filled to the rim with water and is resting on a table.A small hole is punctured in the cup at a height 9.00 cm above the bottom of the cup and is allowing water to spew out.What is the speed of the water when it strikes the table?

A solid object weighs 15.70 N in air.When it is suspended from a scale and submerged in water,the scale reads 5.30 N.Find the density of the object.(Use 1000.0 kg/m3 for the water density.)(in kg/m3)

A piece of cork (density = 0.33 g/cm3)with a mass of 10 g is held in place by a string attached to the bottom of the cork.If the cork is completely underwater in distilled water,what is the tension in the string?

Find the pressure difference (in N/m2)between the inside and outside of a window which looks into a swimming pool 12 m below the surface.(The density of water is 1000 kg/m3.)

Overview

Motion in a Straight Line

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Your friend Zach can inhale to create a gauge pressure of -70 mm of Hg (density of Hg = 13.6 g/cm³).The height of water (density of water = 1 g/cm³)Zach can raise in a straw is

Two wires of the same material are stretched by equal forces,but L₁ = 2L₂ and d₁ = 2d₂,where L and d are the lengths and diameters of the two wires.The ratio of the stresses stress₁/stress₂ is

A supertanker filled with oil has a total mass of 14.5 * 10⁸ kg.If the dimensions of the ship are those of a rectangular box 275 meters long,90 meters wide,and 60 meters high,determine how far the bottom of the ship is below sea level.( $\rho$ _sea = 1020 kg/m³)

A solid object weighs 15.70 N in air.When it is suspended from a scale and submerged in water,the scale reads 5.30 N.Find the density of the object.(Use 1000.0 kg/m³ for the water density.)(in kg/m³)

A piece of cork (density = 0.33 g/cm³)with a mass of 10 g is held in place by a string attached to the bottom of the cork.If the cork is completely underwater in distilled water,what is the tension in the string?

Find the pressure difference (in N/m²)between the inside and outside of a window which looks into a swimming pool 12 m below the surface.(The density of water is 1000 kg/m³.)