Foundations of Astronomy, Enhanced
13th Edition
ISBN: 9781305980686
Author: Michael A. Seeds; Dana Backman
Publisher: Cengage Learning US
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Chapter 22, Problem 4DQ
To determine
The volcanoes on Venus and Mars are active or extinct.
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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)
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Fm
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W₁
e
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W
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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 22 Solutions
Foundations of Astronomy, Enhanced
Ch. 22 - Describe four ways Venus is similar to Earth...Ch. 22 - Why might you expect that Venuss surface...Ch. 22 - Describe and explain changes in Venuss surface...Ch. 22 - Describe sources and sinks of CO2, if any, on...Ch. 22 - Does Venuss surface experience meteorite impacts...Ch. 22 - Describe evidence of crustal movement (horizontal...Ch. 22 - Why isnt the crust of Venus broken into mobile...Ch. 22 - Do either Venus or Mars have composite volcanoes?...Ch. 22 - What evidence can you give that Venus once had...Ch. 22 - What evidence shows that Venus has been resurfaced...
Ch. 22 - Describe four ways Mars is similar to Earth today....Ch. 22 - How are todays atmospheres of Venus and Mars...Ch. 22 - Where is the oxygen on Mars today? How do you...Ch. 22 - Why doesnt Mars have folded mountain ranges like...Ch. 22 - Why isnt the crust of Mars broken into mobile...Ch. 22 - What were the canals on Mars eventually found to...Ch. 22 - How can planetary scientists estimate the ages of...Ch. 22 - Propose an explanation for the nearly pure CO2...Ch. 22 - Prob. 19RQCh. 22 - Describe sources and sinks of CO2, if any, on Mars...Ch. 22 - Does Marss surface experience any meteorite...Ch. 22 - Describe evidence of crustal movement (horizontal...Ch. 22 - What surface features on Mars today indicate that...Ch. 22 - Why are Phobos and Deimos non-spherical? Why is...Ch. 22 - How are a weather radar map and an image of a...Ch. 22 - Prob. 1DQCh. 22 - Prob. 2DQCh. 22 - Prob. 3DQCh. 22 - Prob. 4DQCh. 22 - Prob. 5DQCh. 22 - Prob. 6DQCh. 22 - Prob. 7DQCh. 22 - Prob. 8DQCh. 22 - Atmospheric jet streams on Venus travel at about...Ch. 22 - How long would radio signals take to travel from...Ch. 22 - What is the maximum angular diameter of Venus as...Ch. 22 - The Pioneer Venus orbiter circled Venus with a...Ch. 22 - Calculate the velocity of Venus as it orbits the...Ch. 22 - Prob. 6PCh. 22 - If the Magellan spacecraft transmitted radio...Ch. 22 - Prob. 8PCh. 22 - What is the angular size of Phobos observed from...Ch. 22 - Prob. 10PCh. 22 - Prob. 11PCh. 22 - Deimos is about 13 km in diameter and has a...Ch. 22 - Look at Figure 21-1. Compare temperature profiles...Ch. 22 - Look at the map of the Hawaiian chain of islands...Ch. 22 - Look at Figure 21-11. Which molecule(s) can escape...Ch. 22 - Volcano Sif Mons on Venus is shown in this radar...Ch. 22 - Olympus Mons on Mars is an enormous volcano. In...
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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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