Applied Physics
11th Edition
ISBN: 9780132719865
Author: EWEN, Dale
Publisher: PEARSON
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Chapter 13, Problem 4AC
Wind tunnels are used to measure the aerodynamic properties of prototype models. (a) If a fan generates a wind speed of 25.0 mi/h inside an 8.75-ft2 section of a wind tunnel, what is the wind speed as the air enters the narrower, 4.35-ft2 section of the wind tunnel? (b) Explain why it is often windier on city streets surrounded by tall buildings than in more open areas.
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Consider the situation in the figure below; a neutral conducting ball hangs from the ceiling by an insulating string, and a charged insulating rod is going to be placed nearby.
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answer question 5-9
AMPS
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OHMS
5) 50 A
110 V
6) .08 A
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7) 0.5 A
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Chapter 13 Solutions
Applied Physics
Ch. 13.1 - Find the pressure (in lb/in2) at the bottom of a...Ch. 13.1 - Find the height of a column of water where the...Ch. 13.1 - Find the density of a liquid that exerts a...Ch. 13.1 - (a) Find the total force on the bottom of a...Ch. 13.1 - What must the water pressure be to supply water to...Ch. 13.1 - A small rectangular tank 5.00 in. by 9.00 in. is...Ch. 13.1 - Find the water pressure (in kPa) at the 25.0-m...Ch. 13.1 - Find the height of a column of water where the...Ch. 13.1 - What is the height of a column of water if the...Ch. 13.1 - What is the mass density of a liquid that exerts a...
Ch. 13.1 - What is the mass density of a liquid that exerts a...Ch. 13.1 - (a) Find the total force on the bottom of a...Ch. 13.1 - What must the water pressure be to supply the...Ch. 13.1 - Find the water pressure at ground level to supply...Ch. 13.1 - What pressure must a pump supply to pump water up...Ch. 13.1 - A submarine is submerged to a depth of 3550 m in...Ch. 13.1 - A filled water tower sits on the top of the...Ch. 13.1 - A filled water tower sits on the top of the...Ch. 13.1 - A filled water tower sits on the top of the...Ch. 13.1 - A filed water tower sits on the top of the highest...Ch. 13.1 - A filed water tower sits on the top of the highest...Ch. 13.1 - A cylindrical grain bin 24.0 ft in diameter is...Ch. 13.2 - The area of the small piston in a hydraulic jack...Ch. 13.2 - The mechanical advantage of a hydraulic press is...Ch. 13.2 - Find the mechanical advantage of a hydraulic press...Ch. 13.2 - The mechanical advantage of a hydraulic press is...Ch. 13.2 - Find the mechanical advantage of a hydraulic press...Ch. 13.2 - The small piston of a hydraulic press has an area...Ch. 13.2 - The MA of a hydraulic jack is 250. What force must...Ch. 13.2 - The small piston of a hydraulic press has an area...Ch. 13.2 - The MA of a hydraulic jack is 420. Find the weight...Ch. 13.2 - The mechanical advantage of a hydraulic jack is...Ch. 13.2 - The pistons of a hydraulic press have radii of...Ch. 13.2 - The small circular piston of a hydraulic press has...Ch. 13.2 - The large piston on a hydraulic lift has radius...Ch. 13.2 - In a hydraulic system a 20.0-N force is applied to...Ch. 13.2 - If the diameter of the larger piston in Problem 14...Ch. 13.2 - If a dentists chair weighs 1600 N and is raised by...Ch. 13.2 - A hydraulic jack whose piston has a...Ch. 13.2 - Compressed air in a car lift applies a force to a...Ch. 13.2 - The small piston of an automobile lift has an area...Ch. 13.2 - If the lifting force of a hydraulic truck jack is...Ch. 13.3 - Change 815 kPa to lb/in2.Ch. 13.3 - Change 64.3 lb/in2 to kPa.Ch. 13.3 - Change 42.5 lb/in2 to kPa.Ch. 13.3 - Change 215 kPa to lb/in2.Ch. 13.3 - Find the pressure of (a) 3 atm (in kPa), (b) 2 atm...Ch. 13.3 - A barometer in the Rocky Mountains reads 516 mm of...Ch. 13.3 - Find the absolute pressure in a bicycle tire with...Ch. 13.3 - Find the absolute pressure of a motorcycle tire...Ch. 13.3 - Find the gauge pressure of a tire with an absolute...Ch. 13.3 - Find the gauge pressure of a tire with an absolute...Ch. 13.3 - Find the absolute pressure of a tire gauge that...Ch. 13.3 - Find the absolute pressure of a tank whose gauge...Ch. 13.3 - Find the gauge pressure of a tank whose absolute...Ch. 13.3 - Find the gauge pressure of a tank whose absolute...Ch. 13.3 - Find the absolute pressure of a cycle tire with...Ch. 13.3 - Find the absolute pressure in a hydraulic jack...Ch. 13.4 - A metal alloy weighs 81.0 lb in air and 68.0 lb...Ch. 13.4 - A piece of metal weighs 67.0 N in air and 62.0 N...Ch. 13.4 - A rock weighs 25.7 N in air and 21.8 N in water....Ch. 13.4 - A metal bar weighs 455 N in air and 437 N in...Ch. 13.4 - A rock displaces 1.21 ft3 of water. What is the...Ch. 13.4 - A metal displaces 16.8 m3 of water. Find the...Ch. 13.4 - A metal casting displaces 327 cm3 of water. Find...Ch. 13.4 - A piece of metal displaces 657 cm3 of water. Find...Ch. 13.4 - A metal casting displaces 2.12 ft3 of alcohol....Ch. 13.4 - A metal cylinder displaces 515 cm3 of gasoline....Ch. 13.4 - A 75.0-kg rock lies at the bottom of a pond. Its...Ch. 13.4 - A 125-lb rock lies at the bottom of a pond. Its...Ch. 13.4 - A flat-bottom river barge is 30.0 ft wide, 85.0 ft...Ch. 13.4 - A flat-bottom river barge Is 12.0 m wide, 30.0 m...Ch. 13.4 - What is the volume (in m3) of the water displaced...Ch. 13.4 - A lifeguard swims with her head just above the...Ch. 13.4 - An underwater camera weighing 1250 N in air is...Ch. 13.5 - Water flows through a hose of diameter 3.90 cm at...Ch. 13.5 - Prob. 2PCh. 13.5 - Water flows from a pipe at 650 L/min. (a) What is...Ch. 13.5 - Water flaws through a pipe of diameter 8.00 cm at...Ch. 13.5 - A pump is rated to deliver 50.0 gal/min. Find the...Ch. 13.5 - Prob. 6PCh. 13.5 - What is the diameter of a pipe in which water...Ch. 13.5 - A garden hose is used to fill a bucket in 30.0 s....Ch. 13.5 - A liquid flows through a pipe with a diameter of...Ch. 13.5 - A pipe system with a radius of 0.060 m has a...Ch. 13 - The force applied to a unit area is called a....Ch. 13 - Prob. 2RQCh. 13 - For an incompressible fluid, the flow rate is a....Ch. 13 - Bernoullis principle states that for horizontal...Ch. 13 - Bernoulli's principle explains a. curving...Ch. 13 - What is the metric unit for pressure?Ch. 13 - In your own words, define pressure.Ch. 13 - In your own words, state how to find the force...Ch. 13 - In your own words, state the hydraulic principle.Ch. 13 - Describe why a ship floats.Ch. 13 - Describe how a rotating baseball follows a curved...Ch. 13 - How does an airplane wing provide lift?Ch. 13 - What is the difference between streamline and...Ch. 13 - Give an example of how Archimedes principle...Ch. 13 - Prob. 15RQCh. 13 - Is the pressure on a small piston different from...Ch. 13 - On what does the total force exerted by a liquid...Ch. 13 - Why must the thickness of a dam be greater at the...Ch. 13 - Is the hydraulic piston in the master brake...Ch. 13 - Prob. 20RQCh. 13 - Find the pressure (in kPa) at the bottom of a...Ch. 13 - Find the depth in a lake at which the pressure is...Ch. 13 - Find the height of a water column when the...Ch. 13 - What is the total force exerted on the bottom of a...Ch. 13 - Find the water pressure (in kPa) at a point 35.0 m...Ch. 13 - Find the total force on the bottom of a...Ch. 13 - Find the total force on the side of a cylindrical...Ch. 13 - Find the total force on the side of a rectangular...Ch. 13 - What must the water pressure (in kPa) be on the...Ch. 13 - What water pressure must a pump that is located on...Ch. 13 - A submarine is submerged to a depth of 3150 ft in...Ch. 13 - The area of the large piston in a hydraulic jack...Ch. 13 - The MA of a hydraulic jack is 324. What force must...Ch. 13 - The pistons of a hydraulic press have radii of...Ch. 13 - Find the absolute pressure in a bicycle tire with...Ch. 13 - Find the gauge pressure of a tire with an absolute...Ch. 13 - Find the gauge pressure of a tank whose absolute...Ch. 13 - A rock weighs 55.4 N in air and 52.1 N in water....Ch. 13 - A metal displaces 643 cm3 of water. Find the...Ch. 13 - A rock displaces 314 cm3 of alcohol. Find the...Ch. 13 - A flat-bottom barge is 22.3 ft wide, 87.5 ft long,...Ch. 13 - Water flows through a hose of diameter 3.00 cm at...Ch. 13 - Water flows through a 13.0-cm-diameter fire hose...Ch. 13 - An aquariums main tank holds 200,000 gal or 758 m3...Ch. 13 - The piston in a master cylinder has a radius of...Ch. 13 - A crane that can lift a maximum of 9000 N is...Ch. 13 - Wind tunnels are used to measure the aerodynamic...Ch. 13 - A flexible hose with inside radius 0.250 in. leads...
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