Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)
3rd Edition
ISBN: 9780321908865
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 3CQ
Can you see the rays from the sun on a clear day? Why or why not? How about when they stream through a forest on a foggy morning? Why or why not?
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need help with the first part
A ball is thrown with an initial speed v, at an angle 6, with the horizontal. The horizontal range of the ball is R, and the ball reaches a maximum height R/4. In terms of R and g, find the following.
(a) the time interval during which the ball is in motion
2R
(b) the ball's speed at the peak of its path
v=
Rg 2
√ sin 26, V 3
(c) the initial vertical component of its velocity
Rg
sin ei
sin 20
(d) its initial speed
Rg
√ sin 20
×
(e) the angle 6, expressed in terms of arctan of a fraction.
1
(f) Suppose the ball is thrown at the same initial speed found in (d) but at the angle appropriate for reaching the greatest height that it can. Find this height.
hmax
R2
(g) Suppose the ball is thrown at the same initial speed but at the angle for greatest possible range. Find this maximum horizontal range.
Xmax
R√3
2
Chapter 18 Solutions
Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)
Ch. 18 - Prob. 1CQCh. 18 - Prob. 2CQCh. 18 - Can you see the rays from the sun on a clear day?...Ch. 18 - If you take a walk on a summer night along a dark,...Ch. 18 - You are looking at the image of a pencil in a...Ch. 18 - Prob. 6CQCh. 18 - In Manets A Bar at the Folies-Bergere (see Figure...Ch. 18 - Explain why ambulances have the word AMBULANCE...Ch. 18 - a. Consider one point on an object near a lens....Ch. 18 - When you look at your reflection in the bowl of a...
Ch. 18 - A concave mirror brings the suns rays to a focus...Ch. 18 - Prob. 12CQCh. 18 - You are looking straight into the front of an...Ch. 18 - A lens can be used to start a fire by focusing an...Ch. 18 - A piece of transparent plastic is molded into the...Ch. 18 - From where you stand one night, you see the moon...Ch. 18 - Questions 17 through 19 are concerned with the...Ch. 18 - Prob. 18MCQCh. 18 - Is there an angle of incidence between 0 and 90...Ch. 18 - A 2.0-m-tall man is 5.0 m from the converging lens...Ch. 18 - You are 2.4 m from a plane mirror, and you would...Ch. 18 - As shown in Figure Q18.22, an object is placed in...Ch. 18 - A real image of an object can be formed by A. A...Ch. 18 - An object is 40 cm from a converging lens with a...Ch. 18 - The lens in Figure Q18 .25 is used to produce a...Ch. 18 - A converging lens of focal length 20 cm is used to...Ch. 18 - You look at yourself in a convex mirror. Your...Ch. 18 - An object is 50 cm from a diverging lens with a...Ch. 18 - A 5.0-ft-tall girl stands on level ground. The sun...Ch. 18 - A 10-cm-diameter disk emits light uniformly from...Ch. 18 - A point source of light illuminates an aperture...Ch. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - Prob. 6PCh. 18 - It is 165 cm from your eyes to your toes. Youre...Ch. 18 - Prob. 8PCh. 18 - An underwater diver sees the sun 50 above...Ch. 18 - A laser beam in air is incident on a liquid at an...Ch. 18 - A 1.0-cm-thick layer of water stands on a...Ch. 18 - A 4.0-m-wide swimming pool is filled to the top....Ch. 18 - A diamond is underwater. A light ray enters one...Ch. 18 - Prob. 14PCh. 18 - A light ray travels inside a horizontal plate of...Ch. 18 - Prob. 16PCh. 18 - A biologist keeps a specimen of his favorite...Ch. 18 - A fish in a flat-sided aquarium sees a can of fish...Ch. 18 - A swim mask has a pocket of air between your eyes...Ch. 18 - An object is 30 cm in front of a converging lens...Ch. 18 - An object is 6.0 cm in front of a converging lens...Ch. 18 - An object is 20 cm in front of a diverging lens...Ch. 18 - An object is 15 cm in front of a diverging lens...Ch. 18 - A concave cosmetic mirror has a focal length of 40...Ch. 18 - A light bulb is 60 cm from a concave mirror with a...Ch. 18 - The illumination lights in an operating room use a...Ch. 18 - A dentist uses a curved mirror to view the back...Ch. 18 - A convex mirror, like the passenger-side rearview...Ch. 18 - An object is 12 cm in front of a convex mirror....Ch. 18 - A 2.0-cm-tall object is 40 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 10 cm in front of a...Ch. 18 - A 2.0-cm-tall object is 15 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 75 cm in front of a...Ch. 18 - A 2.0-cm-tall object is 15 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 60 cm in front of a...Ch. 18 - A 3.0-cm-tall object is 15 cm in front of a convex...Ch. 18 - A 3.0-cm-tall object is 45 cm in front of a convex...Ch. 18 - A 3.0-cm-tall object is 15 cm in front of a...Ch. 18 - A 3.0-cm-tall object is 45 cm in front of a...Ch. 18 - At what distance from a concave mirror with a 35...Ch. 18 - Starting 3.5 m from a department store mirror,...Ch. 18 - You slowly back away from a plane mirror at a...Ch. 18 - At what angle should the laser beam in Figure...Ch. 18 - Prob. 44GPCh. 18 - Prob. 45GPCh. 18 - The place you get your hair cut has two nearly...Ch. 18 - Prob. 47GPCh. 18 - A ray of light traveling through air encounters a...Ch. 18 - Prob. 49GPCh. 18 - Prob. 50GPCh. 18 - Prob. 51GPCh. 18 - Its nighttime, and youve dropped your goggles into...Ch. 18 - One of the contests at the school carnival is to...Ch. 18 - Figure P18.54 shows a meter stick lying on the...Ch. 18 - Prob. 55GPCh. 18 - Prob. 56GPCh. 18 - Prob. 57GPCh. 18 - Prob. 58GPCh. 18 - A 1.0-cm-thick layer of water stands on a...Ch. 18 - The glass core of an optical fiber has index of...Ch. 18 - A 150-cm-tall diver is standing completely...Ch. 18 - To a fish, the 4 00-mm-thick aquarium walls appear...Ch. 18 - A microscope is focused on an amoeba. When a...Ch. 18 - A ray diagram can be used to find the location of...Ch. 18 - A 2.0-cm-tall object is located 8.0 cm in front of...Ch. 18 - You need to use a 24-cm-focal-length lens to...Ch. 18 - A near-sighted person might correct his vision by...Ch. 18 - A 1.0-cm-tall object is 20 cm in front of a...Ch. 18 - A 2.0-cm-tall object is 20 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 7.5 cm in front of a...Ch. 18 - A 1.5-cm-tall object is 90 cm in front of a...Ch. 18 - The moon is 3.5 106 m in diameter and 3.8 108 m...Ch. 18 - A 2.0-cm-tall candle flame is 2.0 m from a wall....Ch. 18 - A 2.0-cm-diameter spider is 2.0 m from a wall....Ch. 18 - Figure P18.75 shows a meter stick held lengthwise...Ch. 18 - A slide projector needs to create a 98-cm-high...Ch. 18 - The writing on the passenger-side mirror of your...Ch. 18 - The pocket of hot air appears to be a pool of...Ch. 18 - Which of these changes would allow you to get...Ch. 18 - If you could clearly see the image of an object...
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