The Physical Universe
15th Edition
ISBN: 9780073513928
Author: Konrad Krauskopf, Arthur Beiser
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 11, Problem 7MC
To determine
The correct option from given set of options.
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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
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mn
Fm
B
W₁
e
Fmt
W
0
Fit
Wt
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Fit
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n
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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 11 Solutions
The Physical Universe
Ch. 11 - Prob. 1MCCh. 11 - Prob. 2MCCh. 11 - Prob. 3MCCh. 11 - Prob. 4MCCh. 11 - Prob. 5MCCh. 11 - Prob. 6MCCh. 11 - Prob. 7MCCh. 11 - Prob. 8MCCh. 11 - Prob. 9MCCh. 11 - Prob. 10MC
Ch. 11 - Prob. 11MCCh. 11 - Suppose there were molecules that had no...Ch. 11 - Prob. 13MCCh. 11 - Prob. 14MCCh. 11 - Prob. 15MCCh. 11 - Prob. 16MCCh. 11 - Prob. 17MCCh. 11 - Prob. 18MCCh. 11 - Prob. 19MCCh. 11 - Prob. 20MCCh. 11 - Prob. 21MCCh. 11 - Prob. 22MCCh. 11 - Prob. 23MCCh. 11 - Prob. 24MCCh. 11 - Prob. 25MCCh. 11 - Prob. 26MCCh. 11 - Prob. 27MCCh. 11 - Prob. 28MCCh. 11 - Prob. 29MCCh. 11 - Prob. 30MCCh. 11 - Prob. 31MCCh. 11 - Prob. 32MCCh. 11 - Prob. 33MCCh. 11 - Prob. 34MCCh. 11 - Prob. 35MCCh. 11 - Prob. 36MCCh. 11 - Prob. 37MCCh. 11 - Prob. 38MCCh. 11 - Prob. 39MCCh. 11 - Prob. 40MCCh. 11 - Prob. 41MCCh. 11 - Prob. 42MCCh. 11 - Prob. 1ECh. 11 - What kind of solid is ice? Why does ice float when...Ch. 11 - Prob. 3ECh. 11 - Prob. 4ECh. 11 - How could you tell experimentally whether a...Ch. 11 - From which class of solids would you expect...Ch. 11 - Prob. 7ECh. 11 - Prob. 8ECh. 11 - Van der Waals forces are strong enough to hold...Ch. 11 - Prob. 10ECh. 11 - What ions would you expect to find in the crystal...Ch. 11 - Why is the solubility of one gas in another...Ch. 11 - Why do bubbles of gas form in a glass of soda...Ch. 11 - Ordinary tap water tastes different after it has...Ch. 11 - How do unsaturated, saturated, and supersaturated...Ch. 11 - Prob. 16ECh. 11 - Give two ways to tell whether a sugar solution is...Ch. 11 - At 10C, which is more concentrated, a saturated...Ch. 11 - Prob. 19ECh. 11 - What is the difference between a molecular ion and...Ch. 11 - How could you distinguish experimentally between...Ch. 11 - Prob. 22ECh. 11 - You have a solution that contains Cl- ions and...Ch. 11 - You have a solution that contains Ca2+ ions and...Ch. 11 - You have a solution that contains Ag+ ions and...Ch. 11 - What is the easiest way to distinguish between a...Ch. 11 - Prob. 27ECh. 11 - Seawater freezes at a lower temperature than pure...Ch. 11 - Prob. 29ECh. 11 - What are the two chief ions found in seawater?Ch. 11 - (a) Is the percentage of the worlds water that is...Ch. 11 - The pesticide DDT concentrates in the fat of...Ch. 11 - Prob. 33ECh. 11 - Which of the following are weak acids?...Ch. 11 - Would you expect HBr to be a weak or strong acid?...Ch. 11 - Even though ammonia is not a base because its...Ch. 11 - What is the difference, if any, between a basic...Ch. 11 - Is it correct to say that the only ions an acidic...Ch. 11 - Which is more strongly acidic, a solution of pH 3...Ch. 11 - In an acidic solution, why is the OH concentration...Ch. 11 - Prob. 41ECh. 11 - When a salt that contains the negative ion of a...Ch. 11 - Prob. 43ECh. 11 - What salt is formed when a solution of calcium...Ch. 11 - What salt is formed when a solution of calcium...Ch. 11 - What salt is formed when a solution of sodium...Ch. 11 - What salt is formed when a solution of potassium...Ch. 11 - Prob. 48ECh. 11 - Prob. 49ECh. 11 - Boric acid (H3BO3) is a very weak acid. What would...Ch. 11 - The Al3+ ion tends to form AlOH2+ ions in water...Ch. 11 - Prob. 52ECh. 11 - Prob. 53E
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- A proton moves at 5.20 x 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 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 step…arrow_forward(a) A physics lab instructor is working on a new demonstration. She attaches two identical copper spheres with mass m = 0.180 g to cords of length L as shown in the figure. A Both spheres have the same charge of 6.80 nC, and are in static equilibrium when = 4.95°. What is L (in m)? Assume the cords are massless. 0.150 Draw a free-body diagram, apply Newton's second law for a particle in equilibrium to one of the spheres. Find an equation for the distance between the two spheres in terms of L and 0, and use this expression in your Coulomb force equation. m (b) What If? The charge on both spheres is increased until each cord makes an angle of 0 = 9.90° with the vertical. If both spheres have the same electric charge, what is the charge (in nC) on each sphere in this case? 13.6 ☑ Use the same reasoning as in part (a), only now, use the length found in part (a) and the new angle to solve for the charge. nCarrow_forwardA proton moves at 5.20 x 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. 1.15e-7 ☑ Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. 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.) 5.33e-3 ☑ Your response is off by a multiple of ten. mm (c) Find the horizontal and vertical components of its velocity after it has traveled 6.00 cm horizontally. | ↑ + jkm/sarrow_forward
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