A Paint Sprayer Pumps Air Through a Constriction in a 2.50-Cm

question 53

Multiple Choice

A paint sprayer pumps air through a constriction in a 2.50-cm diameter pipe,as shown in the figure.The flow causes the pressure in the constricted area to drop and paint rises up the feed tube and enters the air stream.The speed of the air stream in the 2.50-cm diameter sections is 5.00 m/s.The density of the air is 1.29 kg/m³,and the density of the paint is 1200 kg/m³.We can treat the air and paint as incompressible ideal fluids.What is the maximum diameter of the constriction that will allow the sprayer to operate?

• A)8.07 mm
• B)4.05 mm
• C)12.2 mm
• D)9.65 mm
• E)14.3 mm

---

Definitions:

Times Interest Earned

A financial ratio that measures a company’s ability to meet its debt obligations, calculated by dividing earnings before interest and taxes (EBIT) by interest expenses.

Interest Payments

The amount paid by a borrower to a lender over a period of time for the use of borrowed money, typically expressed as an annual percentage rate.

Earnings Decrease

This term refers to a reduction in a company’s net income or earnings per share (EPS) in comparison to a previous period, indicating a decline in profitability.

Industry Averages

Statistical measures that represent the average or typical performance within a particular industry or sector.