EBK APPLIED PHYSICS
11th Edition
ISBN: 9780134241173
Author: GUNDERSEN
Publisher: YUZU
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Chapter 21, Problem 6RP
To determine
Find the focal length of the mirror.
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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
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[15 marks]
4₁
Figure Q1. Pipe system
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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 21 Solutions
EBK APPLIED PHYSICS
Ch. 21.5 - Given so = 1.65 cm and st = 6.00 cm, find f.Ch. 21.5 - Given f = 15.0 cm and st = 3.00 cm, find so.Ch. 21.5 - Given st = 14.5 cm and f = 10.0 cm, find so.Ch. 21.5 - Given st = - 10.0 cm and f = - 5.00 cm, find so.Ch. 21.5 - Given so = 7.35 cm and st = 17.0 cm, find f.Ch. 21.5 - Given ht = 2.75 cm, ho = 4.50 cm, and st = 6.00...Ch. 21.5 - Given ho = 12.0 cm, st = 13.0 cm, and so = 25.0...Ch. 21.5 - Given ht = 3.50 cm. hs = 2.50 cm, and st = 15.5...Ch. 21.5 - If an object is 2.50 m tall and 8.60 m from a...Ch. 21.5 - An object 30.0 cm tall is located 10.5 cm from a...
Ch. 21.5 - Prob. 11PCh. 21.5 - An object 12 6 cm in front of a convex mirror...Ch. 21.5 - What is the height of an image in a truck mirror...Ch. 21.5 - A lift truck has a rear view mirror that is 0.76 m...Ch. 21.5 - Find the focal length of a convex mirror that...Ch. 21.5 - Find the focal length of a mirror that forms an...Ch. 21.5 - Find the focal length of a mirror that forms an...Ch. 21.5 - An image of a statue appears to be 11.5 cm behind...Ch. 21.5 - (a) What is the height of a figurine 7.33 cm in...Ch. 21.10 - Find the index of refraction of a medium for which...Ch. 21.10 - Prob. 2PCh. 21.10 - If the index of refraction of a liquid is 1.50,...Ch. 21.10 - The angle of incidence of light passing from air...Ch. 21.10 - If the critical angle of a liquid is 42.4, find...Ch. 21.10 - If the index of refraction of a substance is 2.45,...Ch. 21.10 - A converging lens has a focal length of 15.0 cm....Ch. 21.10 - An object 2.50 cm tall is placed 20.0 cm from a...Ch. 21.10 - The focal length of a lens is 5.00 cm. How far...Ch. 21.10 - If the distance from the lens in your eye to the...Ch. 21.10 - An object 5.00 cm tall is placed 15.0 cm from a...Ch. 21.10 - An object 4.50 cm tall is placed 18.0 cm from a...Ch. 21.10 - What are the size and location of an image...Ch. 21.10 - What are the size and location of an image...Ch. 21.10 - What is the focal length of a convex lens that...Ch. 21 - Stained glass is an example of a. a transparent...Ch. 21 - A virtual image may be a. larger than the object....Ch. 21 - A real image may be a. erect. b. shown on a...Ch. 21 - Explain the difference between diffusion and...Ch. 21 - Prob. 5RQCh. 21 - Prob. 6RQCh. 21 - Describe the type of images formed by plane...Ch. 21 - Explain the difference between real and virtual...Ch. 21 - Explain the difference between a concave and a...Ch. 21 - Explain the effect of spherical aberration.Ch. 21 - For a mirror of given focal length, how does the...Ch. 21 - For a given object distance from a mirror, how...Ch. 21 - The index of refraction depends on a. the focal...Ch. 21 - Snell's law involves a. the lens equation. b. the...Ch. 21 - Prob. 15RQCh. 21 - Give several examples of total internal...Ch. 21 - Prob. 17RQCh. 21 - Prob. 18RQCh. 21 - Prob. 19RQCh. 21 - What types of images are formed by diverging...Ch. 21 - What types of images are formed by converging...Ch. 21 - How do water waves affect the escape of light from...Ch. 21 - Explain why a fish under water appears to be at a...Ch. 21 - Does light always travel in a straight line?...Ch. 21 - Explain how total internal reflection allows light...Ch. 21 - Under what conditions will a converging lens form...Ch. 21 - Under what conditions will a converging lens form...Ch. 21 - Under what conditions will a diverging lens form a...Ch. 21 - Using 1f=1s0+1si, s0 = 3.50 cm, and si = 7.25 cm,...Ch. 21 - Using 1f=1s0+1si, s0 = 8.50 cm, and f = 25.0 cm,...Ch. 21 - Using M=hih0=sis0, h0 = 6.50 cm, si = 7.50 cm, and...Ch. 21 - If an object is 3.75 m tall and 7.35 m from a...Ch. 21 - An object 43.0 cm tall is located 23.4 cm from a...Ch. 21 - Prob. 6RPCh. 21 - The angle of incidence of light passing from air...Ch. 21 - If the index of refraction of a liquid is 1.44,...Ch. 21 - If the critical angle of a liquid is 45.6, find...Ch. 21 - If the index of refraction of a substance is 1.50,...Ch. 21 - A converging lens has a focal length of 12.0 cm....Ch. 21 - An object 4.50 cm tall is placed 20.0 cm from a...Ch. 21 - The focal length of a lens is 4.00 cm. How far...Ch. 21 - What is the focal length of a convex lens that...Ch. 21 - What is the focal length of a mirror that forms an...Ch. 21 - What are the size and location of an image...Ch. 21 - What is the speed of light passing through a...Ch. 21 - Prob. 18RPCh. 21 - Find the focal length of a concave mirror with an...Ch. 21 - Prob. 20RPCh. 21 - Tamera uses a concave mirror when applying makeup....Ch. 21 - A convex security mirror has a radius of curvature...Ch. 21 - Prob. 3ACCh. 21 - Diamonds are cut to take advantage of internal...Ch. 21 - A photographer uses a 60.0-mm lens. (a) How far...
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