Physics
7th Edition
ISBN: 9780321625915
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 25, Problem 1Q
To determine
Why the camera lens must be moved farther from the sensor or film to focus on closer object.
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An m = 69.0-kg person running at an initial speed of v = 4.50 m/s jumps onto an M = 138-kg cart initially at rest (figure below). The person slides on the cart's top surface and finally comes to rest relative to the cart. The coefficient of kinetic friction between the person and the cart is
0.440. Friction between the cart and ground can be ignored. (Let the positive direction be to the right.)
m
M
(a) Find the final velocity of the person and cart relative to the ground. (Indicate the direction with the sign of your answer.)
m/s
(b) Find the friction force acting on the person while he is sliding across the top surface of the cart. (Indicate the direction with the sign of your answer.)
N
(c) How long does the friction force act on the person?
S
(d) Find the change in momentum of the person. (Indicate the direction with the sign of your answer.)
N.S
Find the change in momentum of the cart. (Indicate the direction with the sign of your answer.)
N.S
(e) Determine the displacement of the…
Small ice cubes, each of mass 5.60 g, slide down a frictionless track in a steady stream, as shown in the figure below. Starting from rest, each cube moves down through a net vertical distance of h = 1.50 m and leaves the bottom end of the track at an angle of 40.0° above the horizontal.
At the highest point of its subsequent trajectory, the cube strikes a vertical wall and rebounds with half the speed it had upon impact. If 10 cubes strike the wall per second, what average force is exerted upon the wall?
N ---direction--- ▾
---direction---
to the top
to the bottom
to the left
to the right
1.50 m
40.0°
The magnitude of the net force exerted in the x direction on a 3.00-kg particle varies in time as shown in the figure below.
F(N)
4
3
A
2
t(s)
1
2 3
45
(a) Find the impulse of the force over the 5.00-s time interval.
==
N⚫s
(b) Find the final velocity the particle attains if it is originally at rest.
m/s
(c) Find its final velocity if its original velocity is -3.50 î m/s.
V₁
m/s
(d) Find the average force exerted on the particle for the time interval between 0 and 5.00 s.
=
avg
N
Chapter 25 Solutions
Physics
Ch. 25 - Prob. 1OQCh. 25 - Prob. 2OQCh. 25 - Prob. 1QCh. 25 - Prob. 2QCh. 25 - Prob. 3QCh. 25 - Prob. 4QCh. 25 - Will a nearsighted person who wears corrective...Ch. 25 - Prob. 6QCh. 25 - Prob. 7QCh. 25 - Prob. 8Q
Ch. 25 - Prob. 9QCh. 25 - Prob. 10QCh. 25 - Prob. 11QCh. 25 - Prob. 12QCh. 25 - Explain why chromatic aberration occurs for thin...Ch. 25 - Prob. 14QCh. 25 - Prob. 15QCh. 25 - Prob. 16QCh. 25 - Prob. 17QCh. 25 - Prob. 18QCh. 25 - Prob. 19QCh. 25 - Prob. 20QCh. 25 - The image of a nearby object formed by a camera...Ch. 25 - Prob. 2MCQCh. 25 - Prob. 3MCQCh. 25 - Prob. 4MCQCh. 25 - Prob. 5MCQCh. 25 - Prob. 6MCQCh. 25 - Prob. 7MCQCh. 25 - Prob. 8MCQCh. 25 - Prob. 9MCQCh. 25 - Prob. 10MCQCh. 25 - Prob. 11MCQCh. 25 - Prob. 12MCQCh. 25 - Prob. 13MCQCh. 25 - Prob. 1PCh. 25 - Prob. 2PCh. 25 - Prob. 3PCh. 25 - Prob. 4PCh. 25 - Prob. 5PCh. 25 - Prob. 6PCh. 25 - Prob. 7PCh. 25 - Prob. 8PCh. 25 - If a 135-mm telephoto lens is designed to cover...Ch. 25 - Prob. 10PCh. 25 - Prob. 11PCh. 25 - A person struggles to read by holding a book at...Ch. 25 - Prob. 13PCh. 25 - An eye is corrected by a - 5.50-D lens, 2.0 cm...Ch. 25 - Prob. 15PCh. 25 - Prob. 16PCh. 25 - A person has a far point of 14 cm. What power...Ch. 25 - Prob. 18PCh. 25 - Prob. 19PCh. 25 - Prob. 20PCh. 25 - Prob. 21PCh. 25 - Prob. 22PCh. 25 - Prob. 23PCh. 25 - Prob. 24PCh. 25 - Prob. 25PCh. 25 - Prob. 26PCh. 25 - Prob. 27PCh. 25 - A magnifying glass with a focal length of 9.2 cm...Ch. 25 - Prob. 29PCh. 25 - Prob. 30PCh. 25 - Prob. 31PCh. 25 - Prob. 32PCh. 25 - A 7.0x binocular has 3.5-cm-focal-length...Ch. 25 - Prob. 34PCh. 25 - 35. (II) An astronomical telescope has its two...Ch. 25 - 36. (II) A Galilean telescope adjusted for a...Ch. 25 - Prob. 37PCh. 25 - Prob. 38PCh. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Prob. 41PCh. 25 - Prob. 42PCh. 25 - Prob. 43PCh. 25 - Prob. 44PCh. 25 - Prob. 45PCh. 25 - A microscope has a 14.0x eyepiece and a 60.0x...Ch. 25 - Repeat Problem 46 assuming that the final image is...Ch. 25 - Prob. 48PCh. 25 - The eyepiece of a compound microscope has a focal...Ch. 25 - Prob. 50PCh. 25 - An achromatic lens is made of two very thin...Ch. 25 - Prob. 52PCh. 25 - Prob. 53PCh. 25 - Prob. 54PCh. 25 - Two stars 18 light-years away are barely resolved...Ch. 25 - Prob. 56PCh. 25 - Prob. 57PCh. 25 - Prob. 58PCh. 25 - Prob. 59PCh. 25 - Prob. 60PCh. 25 - Prob. 61PCh. 25 - Prob. 62PCh. 25 - Prob. 63PCh. 25 - Prob. 64GPCh. 25 - Prob. 65GPCh. 25 - Prob. 66GPCh. 25 - Prob. 67GPCh. 25 - Prob. 68GPCh. 25 - Prob. 69GPCh. 25 - Prob. 70GPCh. 25 - Prob. 71GPCh. 25 - Prob. 72GPCh. 25 - Prob. 73GPCh. 25 - Prob. 74GPCh. 25 - Prob. 75GPCh. 25 - Prob. 76GPCh. 25 - Prob. 77GPCh. 25 - Prob. 78GPCh. 25 - Prob. 79GPCh. 25 - Prob. 80GPCh. 25 - Prob. 81GPCh. 25 - Prob. 82GPCh. 25 - Prob. 83GPCh. 25 - Prob. 84GPCh. 25 - Prob. 85GPCh. 25 - Prob. 86GPCh. 25 - You want to design a spy satellite to photograph...Ch. 25 - Given two 12-cm-focal-length lenses, you attempt...Ch. 25 - Prob. 89GP
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