FUNDAMENTALS OF PHYSICS
12th Edition
ISBN: 9781119798606
Author: Halliday
Publisher: WILEY
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Chapter 14, Problem 83P
To determine
The pressure in the air trapped in the glass above the water
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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 14 Solutions
FUNDAMENTALS OF PHYSICS
Ch. 14 - We fully submerge an irregular 3 kg lump of...Ch. 14 - A boat with an anchor on board floats in a...Ch. 14 - ILW A fish maintains its depth in fresh water by...Ch. 14 - A partially evacuated airtight container has a...Ch. 14 - SSM Find the pressure increase in the fluid in a...Ch. 14 - Three liquids that will not mix are poured into a...Ch. 14 - SSM An office window has dimensions 3.4 m by 2.1...Ch. 14 - Prob. 6PCh. 14 - The bends during flight. Anyone who scuba dives is...Ch. 14 - Blood pressure in Argentinosaurus. a If this...
Ch. 14 - Giraffe bending to drink. In a giraffe with its...Ch. 14 - The maximum depth dmax that a diver can snorkel is...Ch. 14 - At a depth of 10.5 km, the Challenger Deep in the...Ch. 14 - Calculate the hydrostatic difference in blood...Ch. 14 - What gauge pressure must a machine produce in...Ch. 14 - SSM Crew members attempt to escape from a damaged...Ch. 14 - GO A large aquarium of height 5.00 m is filled...Ch. 14 - SSM Two identical cylindrical vessels with their...Ch. 14 - Prob. 22PCh. 14 - To suck lemonade of density 1000 kg/m3 up a straw...Ch. 14 - SSM What would be the height of the atmosphere if...Ch. 14 - A 5.00 kg object is released from rest while fully...Ch. 14 - SSM A block of wood floats in fresh water with...Ch. 14 - SSM An iron anchor of density 7870kg/m3 appears...Ch. 14 - Three children, each of weight 356 N, make a log...Ch. 14 - ILW A hollow spherical iron shell floats almost...Ch. 14 - SSM WWW A hollow sphere of inner radius 8.0 cm and...Ch. 14 - What fraction of the volume of an iceberg density...Ch. 14 - A Flotation device is in the shape of a right...Ch. 14 - A wood block mass 3.67 kg, density 600 kg/m3 is...Ch. 14 - GO An iron casting containing a number of cavities...Ch. 14 - GO Suppose that you release a small ball from rest...Ch. 14 - SSM A garden hose with an internal diameter of 1.9...Ch. 14 - Two streams merge to form a river. One stream has...Ch. 14 - SSM Water is pumped steadily out of a flooded...Ch. 14 - GO The water flowing through a 1.9 cm inside...Ch. 14 - How much work is done by pressure in forcing 1.4...Ch. 14 - Suppose that two tanks, 1 and 2, each with a large...Ch. 14 - SSM A cylindrical tank with a large diameter is...Ch. 14 - SSM Water is moving with a speed of 5.0 m/s...Ch. 14 - Models of torpedoes are sometimes tested in a...Ch. 14 - ILW A water pipe having a 2.5 cm inside diameter...Ch. 14 - Prob. 63PCh. 14 - A liquid of density 900 kg/m3 flows through a...Ch. 14 - About one-third of the body of a person floating...Ch. 14 - A simple open U-tube contains mercury. When 11.2...Ch. 14 - If a bubble in sparkling water accelerates upward...Ch. 14 - Suppose that your body has a uniform density of...Ch. 14 - Prob. 77PCh. 14 - Caught in an avalanche, a skier is fully submerged...Ch. 14 - Prob. 79PCh. 14 - Prob. 80PCh. 14 - Prob. 81PCh. 14 - Prob. 82PCh. 14 - Prob. 83PCh. 14 - Prob. 84PCh. 14 - Prob. 85PCh. 14 - Prob. 86PCh. 14 - Prob. 87PCh. 14 - Prob. 88PCh. 14 - Prob. 89PCh. 14 - Prob. 90P
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