Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Textbook Question
Chapter 3.1, Problem 1SC
The metric unit of a joule (J) is a unit of
- a. potential energy.
- b. work.
- c. kinetic energy.
- d. Any of the above is correct.
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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.
Chapter 3 Solutions
Integrated Science
Ch. 3.1 - The metric unit of a joule (J) is a unit of a....Ch. 3.1 - Prob. 2SCCh. 3.1 - Prob. 3SCCh. 3.1 - About how many watts are equivalent to 1...Ch. 3.1 - A kilowatt-hour is a unit of a. power. b. work. c....Ch. 3.2 - The potential energy of a book on a shelf,...Ch. 3.2 - Prob. 7SCCh. 3.2 - Prob. 8SCCh. 3.3 - Prob. 9SCCh. 3.3 - Prob. 10SC
Ch. 3.4 - The accounting device of a barrel of oil is...Ch. 3.4 - The most widely used source of energy today is a....Ch. 3 - How is work related to energy?Ch. 3 - Prob. 2CQCh. 3 - Prob. 3CQCh. 3 - Prob. 4CQCh. 3 - Prob. 5CQCh. 3 - Prob. 6CQCh. 3 - Prob. 7CQCh. 3 - Prob. 8CQCh. 3 - Prob. 9CQCh. 3 - Prob. 10CQCh. 3 - Prob. 11CQCh. 3 - Prob. 12CQCh. 3 - Prob. 13CQCh. 3 - Prob. 14CQCh. 3 - Prob. 15CQCh. 3 - Prob. 16CQCh. 3 - Prob. 17CQCh. 3 - Prob. 18CQCh. 3 - Prob. 19CQCh. 3 - Prob. 20CQCh. 3 - Prob. 21CQCh. 3 - A force of 200 N is needed to push a table across...Ch. 3 - Prob. 2PEACh. 3 - Prob. 3PEACh. 3 - Prob. 4PEACh. 3 - Prob. 5PEACh. 3 - Prob. 6PEACh. 3 - Prob. 7PEACh. 3 - Prob. 8PEACh. 3 - Prob. 9PEACh. 3 - (a) How much work is done in moving a 2.0 kg book...Ch. 3 - Prob. 11PEACh. 3 - Prob. 12PEACh. 3 - Work of 1,200 J is done while pushing a crate...Ch. 3 - How much work is done by a hammer that exerts a...Ch. 3 - A 5.0 kg textbook is raised a distance of 30.0 cm...Ch. 3 - An electric hoist does 196,000 J of work in...Ch. 3 - What is the horsepower of a 1,500.0 kg car that...Ch. 3 - What is the kinetic energy of a 30.0 g bullet that...Ch. 3 - How much work will be done by a 30.0 g bullet...Ch. 3 - A 10.0 kg box is lifted 15 m above the ground by a...Ch. 3 - A force of 50.0 lb is used to push a box 10.0 ft...Ch. 3 - Prob. 10PEBCh. 3 - Prob. 11PEBCh. 3 - A 70.0 kg student runs up the stairs of a football...
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