A radiometer has two square vanes (1.0 cm by 1.0 cm), attached to a light horizontal cross arm,and pivoted about a vertical axis through the center, as shown in the figure. The center of eachvane is 6.0 cm from the axis. One vane is silvered and it reflects all radiant energy incidentupon it. The other vane is blackened and it absorbs all incident radiant energy. Anelectromagnetic wave with an intensity of 0.30 kW/m2 is incident normally upon the vanes.What is the torque due to radiation pressure on the vane assembly about the vertical axis? * -6.0 cm-1.0cm1.0 cm

A radiometer has two square vanes (1 cm by 1 cm), attached to a light horizontal cross arm, and…

Answered: 6.0 cm- 1.0 cm 1.0 cm

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6.0 cm- 1.0 cm 1.0 cm

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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Question

A radiometer has two square vanes (1.0 cm by 1.0 cm), attached to a light horizontal cross arm,
and pivoted about a vertical axis through the center, as shown in the figure. The center of each
vane is 6.0 cm from the axis. One vane is silvered and it reflects all radiant energy incident
upon it. The other vane is blackened and it absorbs all incident radiant energy. An
electromagnetic wave with an intensity of 0.30 kW/m2 is incident normally upon the vanes.
What is the torque due to radiation pressure on the vane assembly about the vertical axis? *

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