A Boeing-737 airliner has a mass of 20 500 kg.The total area of the wings is 105 m2.What must be the pressure difference between the top and bottom of the wings to keep the airplane up?

A) 1.91E+3 Pa B) 1.99E+1 Pa C) 1.95E+2 Pa D) 1.92E+3 Pa E) 1.81E+3 Pa A) 1.91E+3 Pa B) 1.99E+1 Pa C) 1.95E+2 Pa D) 1.92E+3 Pa E) 1.81E+3 Pa

At a pressure of 1 atmosphere a column of mercury in a barometer is supported to the height h = 0.76 m.The density of mercury is 13.6 × 103 kg/m3.A barometer of similar design filled with water would support a column of water how high at a pressure of 1 atmosphere?

A) the same height h B) about 1.36h C) less than one tenth h D) more than ten times h A) the same height h B) about 1.36h C) less than one tenth h D) more than ten times h

A solid object is made of two materials,one material having density of 2 500 kg/m3 and the other having density of 6 500 kg/m3.If the object contains equal masses of the materials,what is its average density?

A) 3 611 kg/m3 B) 4 500 kg/m3 C) 4 611 kg/m3 D) 9 000 kg/m3 E) more information is needed A) 3 611 kg/m3 B) 4 500 kg/m3 C) 4 611 kg/m3 D) 9 000 kg/m3 E) more information is needed

Exam 9: Fluids and Solids

Water is sent from a fire hose at 34.5 m/s at an angle of 30.0° above the horizontal.What is the maximum height reached by the water,assuming the fire hose is level with the ground?

(Multiple Choice)

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Question 21

The bottom of a flat-bottomed aluminum boat has area = 4.10 m² and mass = 65.0 kg.If two fishermen and their fishing gear with total mass of 305 kg are placed in the boat,how much lower will the boat ride in the water? (H₂O density = 1.0 × 10³ kg/m³)

(Multiple Choice)

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Question 22

The quantity "stress" expressed in terms of the fundamental quantities (mass,length,time)is equivalent to

(Multiple Choice)

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Question 23

The bottom of a flat-bottomed aluminum boat has an area of 4.20 m² and the boat's mass is 63.0 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.00 × 10³ kg/m³)

(Multiple Choice)

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Question 24

A cube-shaped box is sitting on the floor.The pressure the box exerts on the floor is 235 Pa.If the density of the box is 21.0 kg/m³,what is the length of each side of the box?

(Multiple Choice)

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Question 25

A large stone is resting on the bottom of the swimming pool.The normal force of the bottom of the pool on the stone is equal to the

(Multiple Choice)

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Question 26

Consider two steel rods,A and B.B has three times the area and twice the length of A,so Young's modulus for B will be what factor times Young's modulus for A?

(Multiple Choice)

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Question 27

How much air must be pushed downward at 40.0 m/s to keep an 830-kg helicopter aloft?

(Multiple Choice)

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Question 28

Air pressure is 1.00 × 10⁵ N/m²,air density is 1.30 kg/m³,and the density of soft drinks is 1.00 × 10³ kg/m³.If one blows carefully across the top of a straw sticking up 0.10 m from the liquid in a soft drink can,it is possible to make the soft drink rise half way up the straw and stay there.How fast must the air be blown across the top of the straw?

(Multiple Choice)

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Question 29

What is the total force on the bottom of a 2.0-m-diameter by 1.5-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 × 10⁵ N/m²,the density of water is 1 000 kg/m³,and g = 9.8 m/s². )

(Multiple Choice)

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Question 30

An ideal fluid flows through a pipe made of two sections with diameters of 1.0 and 4.0 inches,respectively.The speed of the fluid flow through the 4.0-inch section will be what factor times that through the 1.0-inch section?

(Multiple Choice)

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Question 31

A 14 500-N car on a hydraulic lift rests on a cylinder with a piston of radius 0.100 m.If a connecting cylinder with a piston of 0.050-m radius is driven by compressed air,what force must be applied to this smaller piston in order to lift the car?

(Multiple Choice)

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Question 32

The spring of the pressure gauge shown in the figure has a force constant of 900 N/m,and the piston has a radius of 1.5 cm. As the gauge is lowered into water,what change in depth causes the piston to move in by 0.88 cm? The density of water is 1 000 kg/m³.

(Multiple Choice)

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Question 33

A Boeing-737 airliner has a mass of 20 500 kg.The total area of the wings is 105 m².What must be the pressure difference between the top and bottom of the wings to keep the airplane up?

(Multiple Choice)

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Question 34

When an artery gets a constricted region due to plaque,how does the pressure in this region compare to the pressure in an unconstricted region adjacent?

(Multiple Choice)

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Question 35

At a pressure of 1 atmosphere a column of mercury in a barometer is supported to the height h = 0.76 m.The density of mercury is 13.6 × 10³ kg/m³.A barometer of similar design filled with water would support a column of water how high at a pressure of 1 atmosphere?

(Multiple Choice)

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Question 36

Which of the following characterizes the net force on a particle falling through a fluid at its terminal speed?

(Multiple Choice)

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Question 37

A solid object is made of two materials,one material having density of 2 500 kg/m³ and the other having density of 6 500 kg/m³.If the object contains equal masses of the materials,what is its average density?

(Multiple Choice)

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Question 38

A block of wood has specific gravity 0.80.When placed in water,what percent of the volume of the wood is above the surface?

(Multiple Choice)

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Question 39

Legend says that Archimedes,in determining whether or not the king's crown was made of pure gold,measured its volume by the water displacement method.If the density of gold is 19.3 g/cm³,and the crown's mass is 600 g,what volume would be necessary to prove that it is pure gold?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 95

Exam 9: Fluids and Solids

Water is sent from a fire hose at 34.5 m/s at an angle of 30.0° above the horizontal.What is the maximum height reached by the water,assuming the fire hose is level with the ground?

The bottom of a flat-bottomed aluminum boat has area = 4.10 m2 and mass = 65.0 kg.If two fishermen and their fishing gear with total mass of 305 kg are placed in the boat,how much lower will the boat ride in the water? (H2O density = 1.0 × 103 kg/m3)

The quantity "stress" expressed in terms of the fundamental quantities (mass,length,time)is equivalent to

The bottom of a flat-bottomed aluminum boat has an area of 4.20 m2 and the boat's mass is 63.0 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.00 × 103 kg/m3)

A cube-shaped box is sitting on the floor.The pressure the box exerts on the floor is 235 Pa.If the density of the box is 21.0 kg/m3,what is the length of each side of the box?

A large stone is resting on the bottom of the swimming pool.The normal force of the bottom of the pool on the stone is equal to the

Consider two steel rods,A and B.B has three times the area and twice the length of A,so Young's modulus for B will be what factor times Young's modulus for A?

How much air must be pushed downward at 40.0 m/s to keep an 830-kg helicopter aloft?

What is the total force on the bottom of a 2.0-m-diameter by 1.5-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 × 105 N/m2,the density of water is 1 000 kg/m3,and g = 9.8 m/s2. )

An ideal fluid flows through a pipe made of two sections with diameters of 1.0 and 4.0 inches,respectively.The speed of the fluid flow through the 4.0-inch section will be what factor times that through the 1.0-inch section?

A 14 500-N car on a hydraulic lift rests on a cylinder with a piston of radius 0.100 m.If a connecting cylinder with a piston of 0.050-m radius is driven by compressed air,what force must be applied to this smaller piston in order to lift the car?

The spring of the pressure gauge shown in the figure has a force constant of 900 N/m,and the piston has a radius of 1.5 cm. As the gauge is lowered into water,what change in depth causes the piston to move in by 0.88 cm? The density of water is 1 000 kg/m3.

A Boeing-737 airliner has a mass of 20 500 kg.The total area of the wings is 105 m2.What must be the pressure difference between the top and bottom of the wings to keep the airplane up?

When an artery gets a constricted region due to plaque,how does the pressure in this region compare to the pressure in an unconstricted region adjacent?

At a pressure of 1 atmosphere a column of mercury in a barometer is supported to the height h = 0.76 m.The density of mercury is 13.6 × 103 kg/m3.A barometer of similar design filled with water would support a column of water how high at a pressure of 1 atmosphere?

Which of the following characterizes the net force on a particle falling through a fluid at its terminal speed?

A solid object is made of two materials,one material having density of 2 500 kg/m3 and the other having density of 6 500 kg/m3.If the object contains equal masses of the materials,what is its average density?

A block of wood has specific gravity 0.80.When placed in water,what percent of the volume of the wood is above the surface?

Legend says that Archimedes,in determining whether or not the king's crown was made of pure gold,measured its volume by the water displacement method.If the density of gold is 19.3 g/cm3,and the crown's mass is 600 g,what volume would be necessary to prove that it is pure gold?

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The bottom of a flat-bottomed aluminum boat has area = 4.10 m² and mass = 65.0 kg.If two fishermen and their fishing gear with total mass of 305 kg are placed in the boat,how much lower will the boat ride in the water? (H₂O density = 1.0 × 10³ kg/m³)

The bottom of a flat-bottomed aluminum boat has an area of 4.20 m² and the boat's mass is 63.0 kg.When set afloat in water,how far below the water surface is the boat bottom? (water density = 1.00 × 10³ kg/m³)

A cube-shaped box is sitting on the floor.The pressure the box exerts on the floor is 235 Pa.If the density of the box is 21.0 kg/m³,what is the length of each side of the box?

What is the total force on the bottom of a 2.0-m-diameter by 1.5-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 × 10⁵ N/m²,the density of water is 1 000 kg/m³,and g = 9.8 m/s². )

The spring of the pressure gauge shown in the figure has a force constant of 900 N/m,and the piston has a radius of 1.5 cm. As the gauge is lowered into water,what change in depth causes the piston to move in by 0.88 cm? The density of water is 1 000 kg/m³.

A Boeing-737 airliner has a mass of 20 500 kg.The total area of the wings is 105 m².What must be the pressure difference between the top and bottom of the wings to keep the airplane up?

At a pressure of 1 atmosphere a column of mercury in a barometer is supported to the height h = 0.76 m.The density of mercury is 13.6 × 10³ kg/m³.A barometer of similar design filled with water would support a column of water how high at a pressure of 1 atmosphere?

A solid object is made of two materials,one material having density of 2 500 kg/m³ and the other having density of 6 500 kg/m³.If the object contains equal masses of the materials,what is its average density?

Legend says that Archimedes,in determining whether or not the king's crown was made of pure gold,measured its volume by the water displacement method.If the density of gold is 19.3 g/cm³,and the crown's mass is 600 g,what volume would be necessary to prove that it is pure gold?