COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 27, Problem 22QAP
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The source of the Sun's energy.
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An object is placed 37.4cm in front of a diverging lens with a focal length of 18.1 cm. Please provide your answers in units of cm if necessary.
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Find the image distance.
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Is the image real or virtual?
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Suppose the object is brought to a distance of 10.3 cm in front of the lens. Where is the image now with respect to its previous location? (Note: Ensure the sign convention you use is consistent by treating all image distances on the object side of the lens as negative.)
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How has the height of the image changed if the object is 84.2 cm tall?
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Chapter 27 Solutions
COLLEGE PHYSICS
Ch. 27 - Prob. 1QAPCh. 27 - Prob. 2QAPCh. 27 - Prob. 3QAPCh. 27 - Prob. 4QAPCh. 27 - Prob. 5QAPCh. 27 - Prob. 6QAPCh. 27 - Prob. 7QAPCh. 27 - Prob. 8QAPCh. 27 - Prob. 9QAPCh. 27 - Prob. 10QAP
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- n object is placed 37.4cm in front of a diverging lens with a focal length of 18.1 cm. Please provide your answers in units of cm if necessary. bookmark_border1.0p3a Find the image distance. Answer Updated 6 days ago Show feedback bookmark_border1.0p3b Is the image real or virtual? Real Virtual Updated 6 days ago Show feedback bookmark_border1.0p3c Suppose the object is brought to a distance of 10.3 cm in front of the lens. Where is the image now with respect to its previous location? (Note: Ensure the sign convention you use is consistent by treating all image distances on the object side of the lens as negative.) Answer Updated just now Show feedback bookmark_border1.0p3d How has the height of the image changed if the object is 84.2 cm tall? Answerarrow_forwardCan you draw a FBD and KD please!arrow_forwardIf a 120- volt circuit feeds four 40-watt fluorescent lamps, what current (in amps) is drawn if the power factor is 0.912 0.33 0.68 1.21 3.3arrow_forward
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- LECTURE HANDOUT: REFRACTION OF LIGHT I. Review Each of the diagrams at right shows a ray incident on a boundary between two media. Continue each of the rays into the second medium. Using a dashed line, also draw the path that the wave would have taken if it had continued without "bending." Does the ray representing a wave "bend" toward or away from the normal when: the wave speed is smaller in the second medium? ⚫the wave speed is larger in the second medium? Faster medium Slower medium Slower medium Faster medium II. Qualitative applications of refraction A. Place a coin at the bottom of an empty can or cup. Look into the cup at the coin while your partner slowly moves the can away from you until you no longer see the coin. Now, keep your head steady while your partner gently pours water into the cup. 1. Describe your observations. Switch roles with your partner so that you each have a turn. Shown below are cross-sectional diagrams of the cup for when it was empty and when it was…arrow_forwardProblem Six. A 70 kg student in the figure balances a 1200 kg elephant on a hydraulic lift with diameter 2.0 m that is filled with oil which has a density of 900 kg/m³. How many 80 kg students would have to stand on the first piston in order to raise the elephant by 2.55 m? 80 kg 1200 kg 17.) (A) 5 (D) 8 (B) 6 (E) 9 (C) 7 Oil 2.0 m 5arrow_forwardIn the accompanying figure, the rails, connecting end pieces, and rod all have a resistance per unit length of 4.52/cm. The rod moves to the left at v = 5 m/s. If B = 0.3 T everywhere in the region, what is the current in the circuit (a) when a = 6.5 cm? (b) when a = 4 cm?arrow_forward
- Problem Twelve. An object consists of four particles: m₁ =1.0kg, m₂ = 2.0kg, m3 = 3.0kg, ma = 4.0kg. They are connected by rigid massless rods to form a rectangle of edge lengths 2a and 2b, where a 7.0 m and b = 8.0 m. The system rotates about the x-axis through the center as shown. = Find the (x, y) coordinate of the center of gravity of the object (in meters). Use the geometrical center of the object as the origin. 2a 13 2b m M2 Axis of rotation 20.) (A) (-3.2, -1.4) (B) (-3.2, 1.4) (C) (5.2, -1.4) (D) (-1.8,-1.4) (E) (3.2,-5.2) Find the moment of inertia of the object about the x-axis and y-axis that run through the geometrical center of the object. Give an answer as (Ix, ly, I) in units of 10² kg-m². 21.) (A) (6.4, 4.9, 11) (D) (9.8, 11, 12.8) (B) (4.9, 6.4, 11) (C) (11, 12.8, 9.8) (E) (2.5, 10, 11) anul babogaus al bos ano 002 maldor If the object is spinning with angular velocity of 30 rpm around the axis of rotation shown in the diagram, find the rotational kinetic energy. Give…arrow_forwardProblem Eleven. A hollow sphere with rotational inertia 1 = (2/3)MR2 is moving with speed v down an incline of angle 0 toward a spring with spring constant k. After traveling a distance d down the incline with no slipping, the sphere makes contact with the spring and compresses it a distance x before it comes momentarily to rest. Find the distance d in terms of the other quantities given. (21) 19.) (A) d=- 2Mg sin kx²-Mv² +x (B) d= 2Mg sin kx²+Mv² +x kx²-Mv² (C) d=- -x (D) d= 2Mg sin 2Mg cos kx²-Mv² 2Mg sin -x (E) d= kx²-Mv²arrow_forward1. A light bulb operates at a temperature of 4,300 K and has an emissivity of 0.600 and a surface area of 5.50 mm². How long would the light bulb have to shine on a 2.00 g piece of ice that is at -30.0°C in order to turn the ice into steam at 120°C? Assume all the energy radiated by the light bulb is absorbed by the ice while it becomes liquid and eventually steam. Give an answer in seconds. The following are specific heats for ice, water, and steam. Cice = 2,090 ***C kg kg."C Cwater = 4,186 C Csteam = 2,010 C kg"C The following are latent heats for water. L 3.33 x 10' J/kg Lv = 2.26 x 10° J/kg (A) 31.6 (B) 56.9 (C) 63.5 (D) 21.6 (E) 97.4 Suppose q; consists of three protons and 92 consists of two protons. Let q; be at the origin and q2 be located at d along the x-axis. See the diagram below. 91 92 Χ d 2. Where would the net electric potential due to these two charges be zero? (A) to the left of gi (B) to the right of 92 (D) to the right of 92, as well as to the left of gi (E) Between…arrow_forward
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