simple peindult 43. Review. A simple pendulum is 5.00 m long. What is Wi the period of small oscillations for this pendulum if it is located in an elevator (a) accelerating upward at 5.00 m/s²? (b) Accelerating downward at 5.00 m/s²? (c) What is the period of this pendulum if it is placed in a truck that is accelerating horizontally at 5.00 m/s²? 44. A small object is attached to the end of a string to form a simple pendulum. The period of its harmonic motion is measured for small angular displacements and three lengths. For lengths of 1.000 m, 0.750 m, and 0.500 m, total time intervals for 50 oscillations of 99.8 s, 86.6 s, and 71.1 s are measured with a stopwatch. (a) Deter- mine the period of motion for each length. (b) Deter- mine the mean value of gobtained from these three independent measurements and compare it with the accepted value. (c) Plot T2 versus L and obtain a value for g from the slope of your best-fit straight-line graph. (d) Compare the value found in part (c) with that obtained in part (b). Balance wheel 45. A watch balance wheel (Fig. P15.45) has a period of oscillation of 0.250 s. The wheel is constructed so that its mass of 20.0 g is concentrated around a rim of radius 0.500 cm. What are (a) the wheel's moment of inertia and (b) the torsion constant of the attached spring? Figure P15.45 ©Cengage Learniny/George Semple
simple peindult 43. Review. A simple pendulum is 5.00 m long. What is Wi the period of small oscillations for this pendulum if it is located in an elevator (a) accelerating upward at 5.00 m/s²? (b) Accelerating downward at 5.00 m/s²? (c) What is the period of this pendulum if it is placed in a truck that is accelerating horizontally at 5.00 m/s²? 44. A small object is attached to the end of a string to form a simple pendulum. The period of its harmonic motion is measured for small angular displacements and three lengths. For lengths of 1.000 m, 0.750 m, and 0.500 m, total time intervals for 50 oscillations of 99.8 s, 86.6 s, and 71.1 s are measured with a stopwatch. (a) Deter- mine the period of motion for each length. (b) Deter- mine the mean value of gobtained from these three independent measurements and compare it with the accepted value. (c) Plot T2 versus L and obtain a value for g from the slope of your best-fit straight-line graph. (d) Compare the value found in part (c) with that obtained in part (b). Balance wheel 45. A watch balance wheel (Fig. P15.45) has a period of oscillation of 0.250 s. The wheel is constructed so that its mass of 20.0 g is concentrated around a rim of radius 0.500 cm. What are (a) the wheel's moment of inertia and (b) the torsion constant of the attached spring? Figure P15.45 ©Cengage Learniny/George Semple
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:simple peindult
43. Review. A simple pendulum is 5.00 m long. What is
Wi the period of small oscillations for this pendulum if
it is located in an elevator (a) accelerating upward at
5.00 m/s²? (b) Accelerating downward at 5.00 m/s²?
(c) What is the period of this pendulum if it is placed
in a truck that is accelerating horizontally at 5.00 m/s²?
44. A small object is attached to the end of a string to form
a simple pendulum. The period of its harmonic motion
is measured for small angular displacements and three
lengths. For lengths of 1.000 m, 0.750 m, and 0.500 m,
total time intervals for 50 oscillations of 99.8 s, 86.6 s,
and 71.1 s are measured with a stopwatch. (a) Deter-
mine the period of motion for each length. (b) Deter-
mine the mean value of gobtained from these three
independent measurements and compare it with the
accepted value. (c) Plot T2 versus L and obtain a value
for g from the slope of your best-fit straight-line graph.
(d) Compare the value
found in part (c) with
that obtained in part (b).
Balance wheel
45. A watch balance wheel
(Fig. P15.45) has a period
of oscillation of 0.250 s.
The wheel is constructed
so that its mass of 20.0 g
is concentrated around a
rim of radius 0.500 cm.
What are (a) the wheel's
moment of inertia and
(b) the torsion constant
of the attached spring?
Figure P15.45
©Cengage Learniny/George Semple
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