College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter26: Vision And Optical Instruments
Section: Chapter Questions
Problem 2PE: Calculate the power at the eye when viewing an object 3.00 m away.
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Suppose you use an ideal pulley of the type shown in Figure 5.18(b) and find it necessary to exert a force of 380 N to support a load.
Figure 5.18
(a) What is the load's mass?
kg
(b) What force is exerted on the ceiling? Neglect the pulley system's mass.
N (upward)
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