Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
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Chapter 12, Problem 5RQ
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Part A:
kg
(a) Water at 20 °C (p = 998.3 and v = 1 × 10-6 m²/s) flows through a galvanised
m³
iron pipe (k = 0.15 mm) with a diameter of 25 mm, entering the room at point A and
discharging at point C from the fully opened gate valve B at a volumetric flow rate of
0.003 m³/s. Determine the required pressure at A, considering all the losses that occur
in the system described in Figure Q1. Loss coefficients for pipe fittings have been
provided in Table 1.
[25 marks]
(b) Due to corrosion within the pipe, the average flow velocity at C is observed to be
V2 m/s after 10 years of operation whilst the pressure at A remains the same as
determined in (a). Determine the average annual rate of growth of k within the pipe.
[15 marks]
4₁
Figure Q1. Pipe system
Page 2
25 mm
For an independent study project, you design an experiment to measure the speed of light. You propose to bounce laser light off a mirror that is 53.5 km due east and have it detected by a light sensor that is 119 m due south of the laser. The first problem is to orient the mirror so that the laser light reflects off the mirror and into the light sensor.
(a) Determine the angle that the normal to the mirror should make with respect to due west.(b) Since you can read your protractor only so accurately, the mirror is slightly misaligned and the actual angle between the normal to the mirror and due west exceeds the desired amount by 0.003°. Determine how far south you need to move the light sensor in order to detect the reflected laser light.
A mirror hangs 1.67 m above the floor on a vertical wall. A ray of sunlight, reflected off the mirror, forms a spot on the floor 1.41 m from the wall. Later in the day, the spot has moved to a point 2.50 m from the
wall.
(a) What is the change in the angle of elevation of the Sun, between the two observations?
Chapter 12 Solutions
Applied Physics (11th Edition)
Ch. 12.2 - A packing crate 2.50m 0.80m 0.45m weighs 1.41 ...Ch. 12.2 - A packing crate 2.50 m 20.0 cm 30.0 cm has a...Ch. 12.2 - A spring is stretched 24.0 in. by a force of 54.0...Ch. 12.2 - A 17.0-N force stretches a wire 0.650 cm. (a) What...Ch. 12.2 - A force of 36.0 N stretches a spring 18.0 cm. Find...Ch. 12.2 - A force of 5.00 N is applied to a spring whose...Ch. 12.2 - Each vertical steel column of an office building...Ch. 12.2 - Each vertical steel column of an office building...Ch. 12.2 - If the compression of each steel column in Problem...Ch. 12.2 - A coiled spring is stretched 40.0 cm by a 5.00-N...
Ch. 12.2 - A 12,000-N load is hanging from a steel cable that...Ch. 12.2 - A rectangular cast-iron column 25.0 m 25.0 cm ...Ch. 12.2 - In a Hookes law experiment, the following weights...Ch. 12.2 - What was the original length of a spring with...Ch. 12.2 - A bar weighing 26.0 N is supported horizontally on...Ch. 12.2 - A firefighter weighs 725 N. She wears shoes that...Ch. 12.2 - Prob. 17PCh. 12.2 - The cross-sectional area of a wire is 2.50 103...Ch. 12.2 - A spring having a force constant of 1.25 N/cm is...Ch. 12.5 - Express mass density in kg/m3 and weight density...Ch. 12.5 - Express mass density in kg/m3 and weight density...Ch. 12.5 - If a block of wood of the size in Problem 2 has a...Ch. 12.5 - Find the volume (in cm3) of 1350 g of mercury.Ch. 12.5 - Find the volume (in cm3) of 1350g of cork.Ch. 12.5 - Find the volume (in m3) of 1350 g of nitrogen at...Ch. 12.5 - A block of gold 9.00 in. 8.00 in. 6.00 in....Ch. 12.5 - A cylindrical piece of copper is 9.00 in. tall and...Ch. 12.5 - A piece of aluminum of mass 6.24 kg displaces...Ch. 12.5 - If 1.00 pint of turpentine weighs 0.907 lb, what...Ch. 12.5 - Find the mass density of gasoline if 106 g...Ch. 12.5 - How much does 1.00 gal of gasoline weigh?Ch. 12.5 - Determine the volume (in m3) of 3045 kg of oil.Ch. 12.5 - How many ft3 will 573 lb of water occupy?Ch. 12.5 - If 20.4 in3 of linseed oil weighs 0.694 lb, what...Ch. 12.5 - Prob. 16PCh. 12.5 - Find the volume of 3.00 kg of propane at 0C and 1...Ch. 12.5 - Granite has a mass density of 2650 kg/m3. Find its...Ch. 12.5 - Find the mass density of a metal block 18.0 cm ...Ch. 12.5 - Find the mass (in kg) of 1.00 m3 of (a) water, (b)...Ch. 12.5 - What size tank (in litres) is needed for 1000 kg...Ch. 12.5 - Copper has a mass density of 8890 kg/m3. Find its...Ch. 12.5 - What is the mass of gasoline in a 1250-litre gas...Ch. 12.5 - If racing alcohol has a mass density of 790 kg/m3,...Ch. 12.5 - Use Table 12.2 to find the specific gravity of...Ch. 12.5 - Use Table 12.2 to find the specific gravity of...Ch. 12.5 - Use Table 12.2 to find the specific gravity of...Ch. 12.5 - Use Table 12.2 to find the specific gravity of...Ch. 12.5 - Use Table 12.2 to find the specific gravity of...Ch. 12.5 - Use Table 12.2 to find the specific gravity of...Ch. 12.5 - The specific gravity of material X is 0.82. Does...Ch. 12.5 - The specific gravity of material Y is 1.7. Does it...Ch. 12.5 - The specific gravity of material Z is 0.52. Does...Ch. 12.5 - The specific gravity of material W is 11.5. Does...Ch. 12.5 - A proton has mass 1.67 1027 kg and diameter 8.2 ...Ch. 12.5 - Find the mass density of a 315-g object that...Ch. 12.5 - What is the mass density of a 500 g block that...Ch. 12 - Prob. 1RQCh. 12 - Prob. 2RQCh. 12 - The common industrial method used to measure the...Ch. 12 - Prob. 4RQCh. 12 - Prob. 5RQCh. 12 - Capillary action refers to a. the mixing of...Ch. 12 - The relationship of the change in length of a...Ch. 12 - The ability of the surface of water to support a...Ch. 12 - In your own words, describe the difference between...Ch. 12 - Would the mass density of an object be the same if...Ch. 12 - In your own words, describe capillary action.Ch. 12 - Prob. 12RQCh. 12 - Give one example of the effect of surface tension...Ch. 12 - The mass of a proton is approximately _____ times...Ch. 12 - The applied force divided by the area over which...Ch. 12 - In your own words, state Hooke's law.Ch. 12 - The commonly used unit of stress in the metric...Ch. 12 - Describe how to find the specific gravity of an...Ch. 12 - What is the ratio of mass to volume called?Ch. 12 - What is friction in liquids called?Ch. 12 - A spring that has been permanently deformed is...Ch. 12 - List the three states of matter.Ch. 12 - Distinguish between a molecule and an atom.Ch. 12 - Distinguish between a neutron and a proton.Ch. 12 - List the five basic stresses.Ch. 12 - Explain how a hydrometer measures the charge in a...Ch. 12 - A force of 32.5 N stretches a wire 0.470 cm. What...Ch. 12 - A force of 7.33 N is applied to a spring whose...Ch. 12 - Each vertical steel column of an office building...Ch. 12 - A rectangular cast-iron column 16.0 cm 16.0 cm ...Ch. 12 - Find the weight density of a block of metal 7.00...Ch. 12 - A cylindrical piece of aluminum is 4.25 cm tall...Ch. 12 - A piece of metal has a mass of 8.36 kg. If it...Ch. 12 - A block of wood is 27.7 in. 36.3 in. 12.4 in....Ch. 12 - Find the volume (in cm3) of 759 g of mercury.Ch. 12 - Find the volume (in m3) of 1970 g of hydrogen at...Ch. 12 - Find the mass of 1510 m3 of oxygen at 0C and 1...Ch. 12 - Find the weight of 951 ft3 of water.Ch. 12 - Find the weight density of a block of material...Ch. 12 - Find the weight density of 2.00 quarts of liquid...Ch. 12 - A quantity of liquid weighs 4.65 lb with a weight...Ch. 12 - The density of a metal is 694 kg/m3. Find its...Ch. 12 - A solid displaces 4.30 gal of water and has a...Ch. 12 - Find the mass of a rectangular gold bar 4.00 cm ...Ch. 12 - Find the mass density of a chunk of rock using...Ch. 12 - The specific gravity of an unknown substance is...Ch. 12 - Instead of carrying a full-size spare tire, many...Ch. 12 - Observe the warped lines on asphalt pavement in...Ch. 12 - Raul weighs 235 lb and is able to float in...Ch. 12 - A tanker truck with a cylindrical container 11.3 m...Ch. 12 - Every morning Shakira weighs herself on a bathroom...
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