Physics Laboratory Experiments
8th Edition
ISBN: 9781285738567
Author: Jerry D. Wilson, Cecilia A. Hernández-Hall
Publisher: Cengage Learning
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Chapter 14, Problem 1Q
Was the center of gravity of the meterstick exactly at the 50-cm mark? If not, why? Explain how the condition
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In an experiment where we will use a vertically-mounted turntable that has a hub attached at its center, which has three grooves of different radius, around which one can wind a string. A mass hanging from the free end of the string provides tension, which exerts a torque on the turntable, thus causing it to rotate
What effect does the diameter of the string have on the lever arm? Explain why we can ignore this effect.
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Three electrical charges isolated from the rest of the universe are located at the vertices of an equilateral triangle. Charge 3 attracts charge 1 with a force of modulus F1(3) = 4.3 N and repels charge 2 with a force of modulus F2(3) = 6.7 N. What is the modulus of the sum of the reaction forces on the charge 3 in Newtons?
a. 10,95
b. 8,45
c. 9,60
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e. 12,39
f. 2,21
g. 15,17
h. 0,86
You are asked to construct a mobile with four equal m = 185 kg masses, and three light rods of negligible mass and equal lengths. The rods are of length 55 cm.
(a) At what location on the level 1 rod should the free end of rod 2 be attached?L1 = (b) At what location on the level 2 rod should the free end of rod 3 be attached?L2 = (c) At what location on the level 3 rod should the whole assembly be suspended from so that the mobile is in equilibrium?L3 =
Chapter 14 Solutions
Physics Laboratory Experiments
Ch. 14 - Prob. 1ASACh. 14 - If these conditions for equilibrium are satisfied,...Ch. 14 - Prob. 3ASACh. 14 - Prob. 4ASACh. 14 - Prob. 5ASACh. 14 - Prob. 6ASACh. 14 - Was the center of gravity of the meterstick...Ch. 14 - Why are clockwise and counterclockwise referred to...Ch. 14 - Suppose in a situation like Case 2(a) in the...Ch. 14 - Prob. 4Q
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