EBK PHYSICAL UNIVERSE
15th Edition
ISBN: 9780100255036
Author: KRAUSKOPF
Publisher: YUZU
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Chapter 17, Problem 11E
To determine
The implication regarding the danger to the Earth from a collision with a comet.
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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 17 Solutions
EBK PHYSICAL UNIVERSE
Ch. 17 - Comets a. follow orbits around the earth b. follow...Ch. 17 - Comets consist of a. leftover matter from the...Ch. 17 - Prob. 3MCCh. 17 - Meteor showers occur a. at the same times each...Ch. 17 - Prob. 5MCCh. 17 - Prob. 6MCCh. 17 - Prob. 7MCCh. 17 - Prob. 8MCCh. 17 - The planet nearest the sun is a. Mercury b. Venus...Ch. 17 - Prob. 10MC
Ch. 17 - Prob. 11MCCh. 17 - Prob. 12MCCh. 17 - Prob. 13MCCh. 17 - Prob. 14MCCh. 17 - Prob. 15MCCh. 17 - Prob. 16MCCh. 17 - An astronaut would weigh least on the surface of...Ch. 17 - Prob. 18MCCh. 17 - Prob. 19MCCh. 17 - Prob. 20MCCh. 17 - Prob. 21MCCh. 17 - Prob. 22MCCh. 17 - Prob. 23MCCh. 17 - Prob. 24MCCh. 17 - Prob. 25MCCh. 17 - Prob. 26MCCh. 17 - Prob. 27MCCh. 17 - Prob. 28MCCh. 17 - Prob. 29MCCh. 17 - Prob. 30MCCh. 17 - Prob. 31MCCh. 17 - Prob. 32MCCh. 17 - Prob. 33MCCh. 17 - Prob. 34MCCh. 17 - Prob. 35MCCh. 17 - Prob. 36MCCh. 17 - Prob. 37MCCh. 17 - Prob. 38MCCh. 17 - Prob. 39MCCh. 17 - Prob. 40MCCh. 17 - Prob. 41MCCh. 17 - Prob. 42MCCh. 17 - Prob. 43MCCh. 17 - Prob. 44MCCh. 17 - Prob. 45MCCh. 17 - Prob. 46MCCh. 17 - Prob. 47MCCh. 17 - Prob. 48MCCh. 17 - Prob. 1ECh. 17 - Prob. 2ECh. 17 - Which is the largest planet? The smallest? Which...Ch. 17 - Prob. 4ECh. 17 - Which planets, if any, have no satellites?Ch. 17 - Is the mass of the solar system concentrated in...Ch. 17 - On which planets would a person weigh less than on...Ch. 17 - Prob. 8ECh. 17 - Prob. 9ECh. 17 - Why do comets have tails only in the vicinity of...Ch. 17 - Prob. 11ECh. 17 - The Perseid meteor shower appears early every...Ch. 17 - Prob. 13ECh. 17 - Prob. 14ECh. 17 - Prob. 15ECh. 17 - Prob. 16ECh. 17 - Why is it very unlikely that there is life on...Ch. 17 - Prob. 18ECh. 17 - Prob. 19ECh. 17 - Venus is the brightest planet in the sky. How does...Ch. 17 - Prob. 21ECh. 17 - Prob. 22ECh. 17 - Prob. 23ECh. 17 - Give two reasons why the surface of Venus is so...Ch. 17 - Give three reasons why Venus is a brighter object...Ch. 17 - Prob. 26ECh. 17 - Mars has surface features that seem to be the...Ch. 17 - Why do temperatures on the surface of Mars vary...Ch. 17 - Prob. 29ECh. 17 - Prob. 30ECh. 17 - Why is ultraviolet radiation from the sun more of...Ch. 17 - Distinguish between asteroids and meteoroids.Ch. 17 - What is believed to be the origin of the...Ch. 17 - Why are few asteroids spherical, as planets are?Ch. 17 - Prob. 35ECh. 17 - Prob. 36ECh. 17 - Prob. 37ECh. 17 - When did conditions on the earth resemble those on...Ch. 17 - Prob. 39ECh. 17 - What are the chief similarities between Jupiter...Ch. 17 - Why are Saturns rings believed to consist of small...Ch. 17 - Is it likely that Saturns rings are permanent...Ch. 17 - Saturns satellite Titan has an atmosphere. Do any...Ch. 17 - Which planet resembles the earth most in size and...Ch. 17 - Is there any evidence that planets other than the...Ch. 17 - (a) Which planets besides Saturn have rings? (b)...Ch. 17 - What are thought to be the chief constituents of...Ch. 17 - (a) What is the chief distinction between planets...Ch. 17 - How does Pluto compare in size with the moon? With...Ch. 17 - We always see the same hemisphere of the moon....Ch. 17 - What is wrong with the statement that the moon is...Ch. 17 - The moon rises in the east at midnight on a...Ch. 17 - Approximately how much time elapses between new...Ch. 17 - Prob. 54ECh. 17 - Prob. 55ECh. 17 - Relative to the stars, the moon takes 2713 days to...Ch. 17 - Prob. 57ECh. 17 - Eclipses of the sun and of the moon do not occur...Ch. 17 - In what phase must the moon be at the time of a...Ch. 17 - Prob. 60ECh. 17 - Prob. 61ECh. 17 - Moonquakes are weaker and occur much less often...Ch. 17 - Prob. 63ECh. 17 - Prob. 64ECh. 17 - Prob. 65E
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