In the Cavendish balance apparatus shown in Figure 13.4 in the textbook, suppose that m1 = 1.50 kg, m2 = 27.0 kg, and the rod connecting each of the pairs of masses is 31.0 cm long. Once the system reaches equilibrium, each pair of masses, m1 and m2, are separated by a distance of 13.0 cm center-to-center. A. Find the magnitude of the net force on one of the small masses, m1. B. Find the gravitational torque (about the rotation axis) on the rotating part of the apparatus. Ignore any forces on the connecting rods in your calculation. C. Suggest some ways to improve the sensitivity of this experiment.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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In the Cavendish balance apparatus shown in Figure 13.4 in the textbook, suppose that m1 = 1.50 kg, m2 = 27.0 kg, and the rod connecting each of the pairs of masses is 31.0 cm long. Once the system reaches equilibrium, each pair of masses, m1 and m2, are separated by a distance of 13.0 cm center-to-center.

A. Find the magnitude of the net force on one of the small masses, m1.

B. Find the gravitational torque (about the rotation axis) on the rotating part of the apparatus. Ignore any forces on the connecting rods in your calculation.

C. Suggest some ways to improve the sensitivity of this experiment.

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