Water Flows Through a Horizontal Pipe of Cross-Sectional Area $10.0 \mathrm {~cm} ^ { 2 }$

question 34

Multiple Choice

Water flows through a horizontal pipe of cross-sectional area $10.0 \mathrm {~cm} ^ { 2 }$ at a pressure of 0.250 atm
with a flow rate is 1.00 L/s. At a valve, the effective cross-sectional area of the pipe is reduced to $5.00 \mathrm {~cm} ^ { 2 }$ What is the pressure at the valve? The density of water is $1000 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ , and treat it as an ideal incompressible fluid.

• A) 0.157 atm
• B) 0.110 atm
• C) 0.200 atm
• D) 7700 pa
• E) 0.235 atm

Identify the factors that affect the elasticity of resource demand, including substitutes and proportion of total costs.

Recognize the relationship between the elasticity of product demand and labor demand.

Analyze the impact of technological changes on labor demand for specific occupations.

Comprehend the effects of wage increases on employment levels and total wage payments in different elasticity scenarios.

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