Water is streaming downward from a faucet opening with an area of 3.0 *10-5 m2. It leaves the faucet with a speed of 5.0 m/s. The cross sectional area of the stream 0.50 m below the faucet is:

A) 1.5 * 10-5 m2 B) 2.0 * 10-5 m2 C) 2.5* 10-5 m2 D) 3.0 * 10-5 m2 E) 3.5 *10-5 m2 A) 1.5 * 10-5 m2 B) 2.0 * 10-5 m2 C) 2.5* 10-5 m2 D) 3.0 * 10-5 m2 E) 3.5 *10-5 m2

A) gases B) liquids C) gases or liquids D) non-metallic E) transparent A) gases B) liquids C) gases or liquids D) non-metallic E) transparent

Exam 14: Fluids

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Water is streaming downward from a faucet opening with an area of 3.0 *10^-5 m². It leaves the faucet with a speed of 5.0 m/s. The cross sectional area of the stream 0.50 m below the faucet is:

(Multiple Choice)

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Question 61

A U-tube has dissimilar arms, one having twice the diameter of the other. It contains an incompressible fluid and is fitted with a sliding piston in each arm, with each piston in contact with the fluid. When the piston in the narrow arm is pushed down a distance d, the piston in the wide arm rises a distance:

(Multiple Choice)

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Question 62

The diagram shows a U-tube having cross-sectional area A and partially filled with oil of density $\rho$ . A solid cylinder, which fits the tube tightly but can slide without friction, is placed in the right arm. The system reaches equilibrium. The weight of the cylinder is: $The diagram shows a U-tube having cross-sectional area A and partially filled with oil of density \rho . A solid cylinder, which fits the tube tightly but can slide without friction, is placed in the right arm. The system reaches equilibrium. The weight of the cylinder is:$

(Multiple Choice)

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Question 63

The apparent weight of a steel sphere immersed in various liquids is measured using a spring scale. The greatest reading is obtained for that liquid:

(Multiple Choice)

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Question 64

A person blows across the top of one arm of a U-tube partially filled with water. The water in that arm:

(Multiple Choice)

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Question 65

Water (density = 1.0 * 10³ kg/m³) flows through a horizontal tapered pipe. At the wide end its speed is 4.0 m/s. The difference in pressure between the two ends is 4.5 *10³ Pa. The speed of the water at the narrow end is:

(Multiple Choice)

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Question 66

The hydraulic automobile jack illustrates:

(Multiple Choice)

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Question 67

Gases may be distinguished from other forms of matter by their:

(Multiple Choice)

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Question 68

Water is pumped through the hose shown below, from a lower level to an upper level. Compared to the water at point 1, the water at point 2:

(Multiple Choice)

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Question 69

Two identical blocks of ice float in water as shown. Then:

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Question 70

To obtain the absolute pressure from the gauge pressure:

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Question 71

Several cans of different sizes and shapes are all filled with the same liquid to the same depth. Then:

(Multiple Choice)

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Question 72

A small steel ball floats in a half-full container of mercury. When water is added:

(Multiple Choice)

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Question 73

Consider a pipe containing a fluid, with the fluid being at rest. To apply Bernoulli's equation to this situation:

(Multiple Choice)

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Question 74

A steel ax and an aluminum piston have the same apparent weight in water. When they are weighed in air:

(Multiple Choice)

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Question 75

A cork floats in water in a bucket resting on the floor of an elevator. The elevator then accelerates upward. During the acceleration:

(Multiple Choice)

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Question 76

An object hangs from a spring balance. The balance indicates 30 N in air, 20 N when the object is submerged in water. Which of the following is true?

(Multiple Choice)

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Question 77

Which of the following is true?

(Multiple Choice)

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Question 78

All fluids are:

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Question 79

Bernoulli's equation can be derived from the conservation of:

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Question 80

Showing 61 - 80 of 88

Exam 14: Fluids

Water is streaming downward from a faucet opening with an area of 3.0 *10-5 m2. It leaves the faucet with a speed of 5.0 m/s. The cross sectional area of the stream 0.50 m below the faucet is:

The diagram shows a U-tube having cross-sectional area A and partially filled with oil of density ρ\rhoρ . A solid cylinder, which fits the tube tightly but can slide without friction, is placed in the right arm. The system reaches equilibrium. The weight of the cylinder is:

The apparent weight of a steel sphere immersed in various liquids is measured using a spring scale. The greatest reading is obtained for that liquid:

A person blows across the top of one arm of a U-tube partially filled with water. The water in that arm:

Water (density = 1.0 * 103 kg/m3) flows through a horizontal tapered pipe. At the wide end its speed is 4.0 m/s. The difference in pressure between the two ends is 4.5 *103 Pa. The speed of the water at the narrow end is:

The hydraulic automobile jack illustrates:

Gases may be distinguished from other forms of matter by their:

Water is pumped through the hose shown below, from a lower level to an upper level. Compared to the water at point 1, the water at point 2:

Two identical blocks of ice float in water as shown. Then:

To obtain the absolute pressure from the gauge pressure:

Several cans of different sizes and shapes are all filled with the same liquid to the same depth. Then:

A small steel ball floats in a half-full container of mercury. When water is added:

Consider a pipe containing a fluid, with the fluid being at rest. To apply Bernoulli's equation to this situation:

A steel ax and an aluminum piston have the same apparent weight in water. When they are weighed in air:

A cork floats in water in a bucket resting on the floor of an elevator. The elevator then accelerates upward. During the acceleration:

An object hangs from a spring balance. The balance indicates 30 N in air, 20 N when the object is submerged in water. Which of the following is true?

Which of the following is true?

All fluids are:

Bernoulli's equation can be derived from the conservation of:

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Center of Mass and Linear Momentum

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Water is streaming downward from a faucet opening with an area of 3.0 *10^-5 m². It leaves the faucet with a speed of 5.0 m/s. The cross sectional area of the stream 0.50 m below the faucet is:

Water (density = 1.0 * 10³ kg/m³) flows through a horizontal tapered pipe. At the wide end its speed is 4.0 m/s. The difference in pressure between the two ends is 4.5 *10³ Pa. The speed of the water at the narrow end is: