The Cosmic Perspective
The Cosmic Perspective
7th Edition
ISBN: 9780321839558
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: Addison-Wesley
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Chapter 5, Problem 57EAP

(a)

To determine

The wavelength with maximum intensity emitted from bulb and then compare it with the wavelength with maximum intensity emitted by sun.

(b)

To determine

Whether the light emitted by bulb will be same, redder or bluer than sun. Explain the answer. Using this answer, explain why professional photographer uses different light for indoor outdoor.

(c)

To determine

To explain:

Whether all the energy emitted by incandescent bulb is in visible range or not. Using this answer explain why the incandescent bulbs are usually so hot.

(d)

To determine

To explain:

Why fluorescent bulbs emits more visible light than incandescent bulbs.

(e)

To determine

Whether the fluorescent light bulbs are cost effective or not. What factors, other than initial cost and energy efficiency, need to be considered to know it.

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Determine the shear and moment diagram for the beam shown in Fig.1. A 2 N/m 10 N 8 N 6 m B 4m Fig.1 40 Nm Steps: 1) Determine the reactions at the fixed support (RA and MA) (illustrated in Fig 1.1) 2) Draw the free body diagram on the first imaginary cut (fig. 1.2), and determine V and M. 3) Draw the free body diagram on the second imaginary cut (fig. 1.3), and determine V and M. 4) Draw the shear and moment diagram

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The Cosmic Perspective

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