College Physics
7th Edition
ISBN: 9780321601834
Author: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
Publisher: Addison-Wesley
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Chapter 1, Problem 10CQ
To determine
Unit analysis helps to determine the units of a quantity.
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A proton moves at 5.20 × 105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.40 × 103 N/C. Ignore any gravitational effects.
(a) Find the time interval required for the proton to travel 6.00 cm horizontally.
83.33
☑
Your response differs from the correct answer by more than 10%. Double check your calculations. ns
(b) Find its vertical displacement during the time interval in which it travels 6.00 cm horizontally. (Indicate direction with the sign of your answer.)
2.77
Your response differs from the correct answer by more than 10%. Double check your calculations. mm
(c) Find the horizontal and vertical components of its velocity after it has traveled 6.00 cm horizontally.
5.4e5
V
×
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. I + [6.68e4
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each…
(1)
Fm
Fmn
mn
Fm
B
W₁
e
Fmt
W
0
Fit
Wt
0
W
Fit
Fin
n
Fmt
n
As illustrated in Fig.
consider the
person
performing extension/flexion movements of the lower leg
about the knee joint (point O) to investigate the forces and
torques produced by muscles crossing the knee joint. The
setup of the experiment is described in Example
above.
The geometric parameters of the model under investigation,
some of the forces acting on the lower leg and its free-body
diagrams are shown in Figs. and For this system, the
angular displacement, angular velocity, and angular accelera-
tion of the lower leg were computed using data obtained
during the experiment such that at an instant when 0 = 65°,
@ = 4.5 rad/s, and a = 180 rad/s². Furthermore, for this sys-
tem assume that a = 4.0 cm, b = 23 cm, ß = 25°, and the net
torque generated about the knee joint is M₁ = 55 Nm. If the
torque generated about the knee joint by the weight of the lower
leg is Mw 11.5 Nm, determine:
=
The moment arm a of Fm relative to the…
The figure shows a particle that carries a charge of 90 = -2.50 × 106 C. It is moving along the +y
->
axis at a speed of v = 4.79 × 106 m/s. A magnetic field B of magnitude 3.24 × 10-5 T is directed
along the +z axis, and an electric field E of magnitude 127 N/C points along the -x axis.
Determine (a) the magnitude and (b) direction (as an angle within x-y plane with respect to +x-
axis in the range (-180°, 180°]) of the net force that acts on the particle.
+x
+z
AB
90
+y
Chapter 1 Solutions
College Physics
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Ch. 1 - Unit analysis of an equation cannot tell you if...Ch. 1 - Prob. 12MCQCh. 1 - Prob. 13MCQCh. 1 - You have a quantity of water and wish to express...Ch. 1 - Which of the following has the greatest number of...Ch. 1 - Which of the following numbers has four...Ch. 1 - Prob. 17MCQCh. 1 - An important step in problem solving before...Ch. 1 - Prob. 19MCQCh. 1 - In order-of-magnitude calculations, you should (a)...Ch. 1 - Prob. 1CQCh. 1 - Why is weight not a base quantity?
Ch. 1 - What replaced the original definition of the...Ch. 1 - Give a couple of major differences between the SI...Ch. 1 - If a fellow student tells you he saw a 3-cm-long...Ch. 1 - Prob. 6CQCh. 1 - Explain why a metric ton is equivalent to 1000...Ch. 1 - Prob. 8CQCh. 1 - Prob. 9CQCh. 1 - Prob. 10CQCh. 1 - Prob. 11CQCh. 1 - Prob. 12CQCh. 1 - Prob. 13CQCh. 1 - Prob. 14CQCh. 1 - Prob. 15CQCh. 1 - Are all the significant figures reported for a...Ch. 1 - Prob. 17CQCh. 1 - Prob. 18CQCh. 1 - What are the main steps in the problem-solving...Ch. 1 - When you do order-of-magnitude calculations,...Ch. 1 - When doing an order-of-magnitude calculation, how...Ch. 1 - Prob. 22CQCh. 1 -
Is the following statement reasonable? It took...Ch. 1 - Is the following statement reasonable? A car...Ch. 1 -
The metric system is a decimal (base-10) system,...Ch. 1 - (a) In the British system, 16 oz = 1 pt and 16 oz...Ch. 1 - Convert the following: (a) 40 000 000 bytes to MB,...Ch. 1 - A sailor tells you that if his ship is traveling...Ch. 1 - Prob. 5ECh. 1 - Prob. 6ECh. 1 - Prob. 7ECh. 1 - Prob. 8ECh. 1 - Prob. 9ECh. 1 - Prob. 10ECh. 1 - The general equation for a parabola is y = ax2 +...Ch. 1 - Prob. 12ECh. 1 - Prob. 13ECh. 1 - Prob. 14ECh. 1 - Is the equation for the area of a trapezoid, ,...Ch. 1 - Newton’s second law of motion (Section 4.3) is...Ch. 1 - Prob. 17ECh. 1 - Prob. 18ECh. 1 - Figure 1.8 (top) shows the elevation of a location...Ch. 1 - (a) If you wanted to express your height with the...Ch. 1 - Prob. 21ECh. 1 - Prob. 22ECh. 1 - Prob. 23ECh. 1 - Prob. 24ECh. 1 - Prob. 25ECh. 1 - Prob. 26ECh. 1 - Prob. 27ECh. 1 - Prob. 28ECh. 1 - (a) Which of the following represents the greatest...Ch. 1 - Prob. 30ECh. 1 - Prob. 31ECh. 1 - Prob. 32ECh. 1 - Prob. 33ECh. 1 - Prob. 34ECh. 1 - Fig. 1.18 is a picture of red blood cells seen...Ch. 1 - A student was 18 in. long when she was born. She...Ch. 1 - How many minutes of arc does the Earth rotate in 1...Ch. 1 - Prob. 38ECh. 1 - The Roman Coliseum used to be flooded with water...Ch. 1 - In the Bible, Noah is instructed to build an ark...Ch. 1 - Express the length 50 500 μm (micrometers) in...Ch. 1 - Prob. 42ECh. 1 - Prob. 43ECh. 1 - Express each of the numbers in Exercise 43 with...Ch. 1 - Round the following numbers to two significant...Ch. 1 - Prob. 46ECh. 1 - Prob. 47ECh. 1 - The interior storage compartment of a restaurant...Ch. 1 - The top of a rectangular table measures 1.245 m by...Ch. 1 - Prob. 50ECh. 1 - Prob. 51ECh. 1 - Prob. 52ECh. 1 - Work this exercise by the two given procedures as...Ch. 1 - Prob. 54ECh. 1 - Prob. 55ECh. 1 - Prob. 56ECh. 1 - Prob. 57ECh. 1 - The thickness of the numbered pages of a textbook...Ch. 1 - The mass of the Earth is 5.98 × 1024 kg. What is...Ch. 1 - To go to a football stadium from your house, you...Ch. 1 - Two chains of length 1.0 m are used to support a...Ch. 1 - Tony’s Pizza Palace sells a medium 9.0-in....Ch. 1 - Two students go into Tony’s Pizza Palace and order...Ch. 1 - In Fig. 1.22, which black region has the greater...Ch. 1 - The Channel Tunnel, or “Chunnel,” which runs under...Ch. 1 - Human adult blood contains, on average, 7000/mm3...Ch. 1 - The average number of hairs on the normal human...Ch. 1 - A car is driven 13 mi east and then a certain...Ch. 1 -
At the Indianapolis 500 time trials, each car...Ch. 1 - Approximately 118 mi wide, 307 mi long, and...Ch. 1 - In the Tour de Franco, a bicyclist races up two...Ch. 1 - A student wants to determine the distance from the...Ch. 1 - A farmer owns a piece of land in the shape of an...Ch. 1 - In a radioactivity experiment, a solid lead brick...Ch. 1 - Approximately 118 mi wide, 307 mi long, and...Ch. 1 - Two separate seismograph stations receive...Ch. 1 - You are sailing a radio-controlled model powerboat...Ch. 1 - Prob. 78E
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