An Introduction to Physical Science
14th Edition
ISBN: 9781305079137
Author: James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher: Cengage Learning
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Chapter 7, Problem 23SA
To determine
To determine The reason due to which people wear bifocal or trifocal eyeglasses.
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Students have asked these similar questions
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.
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/s
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.
(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.)
The figure below shows the electric field lines for two charged particles separated by a small distance.
92
91
(a) Determine the ratio 91/92.
1/3
×
This is the correct magnitude for the ratio.
(b) What are the signs of q₁ and 92?
91 positive
92 negative
×
Chapter 7 Solutions
An Introduction to Physical Science
Ch. 7.1 - Prob. 1PQCh. 7.1 - Prob. 2PQCh. 7.2 - What causes light refraction, and what does the...Ch. 7.2 - Prob. 2PQCh. 7.2 - Prob. 7.1CECh. 7.3 - What are the shapes of converging and diverging...Ch. 7.3 - Prob. 2PQCh. 7.3 - Prob. 7.2CECh. 7.4 - Prob. 1PQCh. 7.4 - Prob. 2PQ
Ch. 7.4 - Prob. 7.3CECh. 7.5 - Prob. 1PQCh. 7.5 - Prob. 2PQCh. 7.6 - Prob. 1PQCh. 7.6 - Prob. 2PQCh. 7 - KEY TERMS 1. reflection (7.1) 2. ray 3. law of...Ch. 7 - KEY TERMS 1. reflection (7.1) 2. ray 3. law of...Ch. 7 - Prob. CMCh. 7 - Prob. DMCh. 7 - Prob. EMCh. 7 - Prob. FMCh. 7 - Prob. GMCh. 7 - KEY TERMS 1. reflection (7.1) 2. ray 3. law of...Ch. 7 - Prob. IMCh. 7 - Prob. JMCh. 7 - Prob. KMCh. 7 - Prob. LMCh. 7 - Prob. MMCh. 7 - Prob. NMCh. 7 - Prob. OMCh. 7 - Prob. PMCh. 7 - Prob. QMCh. 7 - Prob. RMCh. 7 - Prob. SMCh. 7 - Prob. TMCh. 7 - Prob. UMCh. 7 - Prob. VMCh. 7 - For ray reflections from a surface, which...Ch. 7 - To what does the law of reflection apply? (a)...Ch. 7 - What is the case when the angle of refraction is...Ch. 7 - In refraction, which of the following wave...Ch. 7 - A plane mirror _____. (7.3) (a) produces both real...Ch. 7 - Prob. 6MCCh. 7 - Prob. 7MCCh. 7 - Which of the following is true of a concave lens?...Ch. 7 - Which is true of a virtual image? (7.4) (a) It is...Ch. 7 - Prob. 10MCCh. 7 - Which is true of diffraction? (7.6) (a) It occurs...Ch. 7 - Prob. 12MCCh. 7 - Prob. 1FIBCh. 7 - Prob. 2FIBCh. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - Prob. 5FIBCh. 7 - Prob. 6FIBCh. 7 - Prob. 7FIBCh. 7 - Prob. 8FIBCh. 7 - A virtual image is always formed by a(n) ___ lens....Ch. 7 - Prob. 10FIBCh. 7 - Prob. 11FIBCh. 7 - Prob. 12FIBCh. 7 - For specular reflection, what is the situation...Ch. 7 - Dutch painter Vincent van Gogh was emotionally...Ch. 7 - When you walk toward a full-length plane mirror,...Ch. 7 - How long does the image of a 12-in. ruler appear...Ch. 7 - Where would an observer see the image of the arrow...Ch. 7 - Prob. 6SACh. 7 - Prob. 7SACh. 7 - Prob. 8SACh. 7 - Prob. 9SACh. 7 - Prob. 10SACh. 7 - Prob. 11SACh. 7 - What relationships exist between the center of...Ch. 7 - Prob. 13SACh. 7 - Prob. 14SACh. 7 - What happens to a light ray that passes through...Ch. 7 - Prob. 16SACh. 7 - Prob. 17SACh. 7 - Prob. 18SACh. 7 - Where is a diverging lens thickest?Ch. 7 - Prob. 20SACh. 7 - Why are slides put into a slide projector upside...Ch. 7 - Prob. 22SACh. 7 - Prob. 23SACh. 7 - Prob. 24SACh. 7 - Prob. 25SACh. 7 - Prob. 26SACh. 7 - While you are looking through two polarizing...Ch. 7 - Prob. 28SACh. 7 - Why do sound waves bend around everyday objects,...Ch. 7 - Prob. 30SACh. 7 - Prob. 31SACh. 7 - Prob. 32SACh. 7 - Prob. 1VCCh. 7 - Prob. 1AYKCh. 7 - When you look at a window from the inside at...Ch. 7 - Prob. 3AYKCh. 7 - Prob. 4AYKCh. 7 - How would a fish see the above-water world when...Ch. 7 - Light is incident on a plane mirror at an angle of...Ch. 7 - Light is incident on a plane mirror at an angle of...Ch. 7 - Prob. 3ECh. 7 - How much longer must the minimum length of a plane...Ch. 7 - Prob. 5ECh. 7 - The speed of light in a particular type of glass...Ch. 7 - What percentage of the speed of light in vacuum is...Ch. 7 - The speed of light in a certain transparent...Ch. 7 - Prob. 9ECh. 7 - Sketch ray diagrams for a concave mirror showing...Ch. 7 - An object is placed 15 cm from a convex spherical...Ch. 7 - A reflecting, spherical Christmas tree ornament...Ch. 7 - Prob. 13ECh. 7 - Sketch ray diagrams for a spherical convex lens...Ch. 7 - An object is placed 45 cm in front of a converging...Ch. 7 - An object is placed in front of a converging lens...Ch. 7 - Prob. 17ECh. 7 - Prob. 18E
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- Please help me solve this one more detail, thanksarrow_forwardA dielectric-filled parallel-plate capacitor has plate area A = 20.0 ccm2 , plate separaton d = 10.0 mm and dielectric constant k = 4.00. The capacitor is connected to a battery that creates a constant voltage V = 12.5 V . Throughout the problem, use ϵ0 = 8.85×10−12 C2/N⋅m2 . Find the energy U1 of the dielectric-filled capacitor. The dielectric plate is now slowly pulled out of the capacitor, which remains connected to the battery. Find the energy U2 of the capacitor at the moment when the capacitor is half-filled with the dielectric. The capacitor is now disconnected from the battery, and the dielectric plate is slowly removed the rest of the way out of the capacitor. Find the new energy of the capacitor, U3. In the process of removing the remaining portion of the dielectric from the disconnected capacitor, how much work W is done by the external agent acting on the dielectric?arrow_forwardIn (Figure 1) C1 = 6.00 μF, C2 = 6.00 μF, C3 = 12.0 μF, and C4 = 3.00 μF. The capacitor network is connected to an applied potential difference Vab. After the charges on the capacitors have reached their final values, the voltage across C3 is 40.0 V. What is the voltage across C4? What is the voltage Vab applied to the network? Please explain everything in steps.arrow_forward
- I need help with these questions again. A step by step working out with diagrams that explains more clearlyarrow_forwardIn a certain region of space the electric potential is given by V=+Ax2y−Bxy2, where A = 5.00 V/m3 and B = 8.00 V/m3. Calculate the direction angle of the electric field at the point in the region that has cordinates x = 2.50 m, y = 0.400 m, and z = 0. Please explain. The answer is not 60, 120, or 30.arrow_forwardAn infinitely long line of charge has linear charge density 4.00×10−12 C/m . A proton (mass 1.67×10−−27 kg, charge +1.60×10−19 C) is 18.0 cm from the line and moving directly toward the line at 4.10×103 m/s . How close does the proton get to the line of charge?arrow_forward
- at a certain location the horizontal component of the earth’s magnetic field is 2.5 x 10^-5 T due north A proton moves eastward with just the right speed so the magnetic force on it balances its weight. Find the speed of the proton.arrow_forwardExample In Canada, the Earth has B = 0.5 mT, pointing north, 70.0° below the horizontal. a) Find the magnetic force on an oxygen ion (O) moving due east at 250 m/s b) Compare the |FB| to |FE| due to Earth's fair- weather electric field (150 V/m downward).arrow_forwardThree charged particles are located at the corners of an equilateral triangle as shown in the figure below (let q = 2.20 µC, and L = 0.810 m). Calculate the total electric force on the 7.00-µC charge. What is the magnitude , what is the direction?arrow_forward
- (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 9.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 2.00 mC. How many electrons are added for every 109 electrons already present?arrow_forward(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 13.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol.arrow_forward8 Two moving charged particles exert forces on each other because each creates a magnetic field that acts on the other. These two "Lorentz" forces are proportional to vix (2 xr) and 2 x (vi x-r), where is the vector between the particle positions. Show that these two forces are equal and opposite in accordance with Newton's third law if and only if rx (vi × 2) = 0.arrow_forward
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