College Physics 11E Global Edition
College Physics 11E Global Edition
11th Edition
ISBN: 9781337620338
Author: SERWAY/VUILLE
Publisher: CENGAGE Learning Custom Publishing
bartleby

Concept explainers

Question
Book Icon
Chapter 27, Problem 6P

(a)

To determine

The energy of the photon.

(a)

Expert Solution
Check Mark

Answer to Problem 6P

The energy of the photon is 2.90×1019J/photon .

Explanation of Solution

The energy of the photon is,

EPeak=hcλmax

    • h is the Plank’s constant
    • λmax is the maximum wavelength
    • c is the speed of the light

Substitute 6.63×1034J.s for h , 3.00×108m/s for c and 685nm for λmax .

EPeak=(6.63×1034J.s)(3.00×108m/s)(685nm)(109m1nm)=2.90×1019J/photon

Conclusion:

Thus, the energy of the photon is 2.90×1019J/photon .

(b)

To determine

The surface temperature of the star.

(b)

Expert Solution
Check Mark

Answer to Problem 6P

The surface temperature of the star is 4.23×103K .

Explanation of Solution

According to Wein’s displacement law, the temperature is,

T=0.2898×102m.Kλmax

    • λmax is the maximum wavelength

Substitute 685nm for λmax .

T=0.2898×102m.K(685nm)(109m1nm)=4.23×103K

Conclusion:

Thus, the surface temperature of the star is 4.23×103K .

(c)

To determine

The rate at which energy is emitted from the star in the form of radiation.

(c)

Expert Solution
Check Mark

Answer to Problem 6P

The rate at which energy is emitted from the star in the form of radiation is 1.65×1026W

Explanation of Solution

The power radiated by an object is,

P=σAeT4=σ(4πr2)eT4

    • σ is the Stefan’s constant
    • A is the surface area
    • T is the temperature
    • e is the emissivity
    • r is the radius

Substitute 4.23×103K for T , 5.6696×108W/m2.K4 for σ , 1 for e and 8.50×108m for r .

P=(5.6696×108W/m2.K4)4π(8.50×108m)2(4.23×103K)4(1)=1.65×1026W

Conclusion:

Thus, the rate at which energy is emitted from the star in the form of radiation is 1.65×1026W .

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
43. A mass må undergoes circular motion of radius R on a hori- zontal frictionless table, con- nected by a massless string through a hole in the table to a second mass m² (Fig. 5.33). If m₂ is stationary, find expres- sions for (a) the string tension and (b) the period of the circu- lar motion. m2 R m₁ FIGURE 5.33 Problem 43
CH 70. A block is projected up an incline at angle 0. It returns to its initial position with half its initial speed. Show that the coefficient of ki- netic friction is μk = tano.
Passage Problems A spiral is an ice-skating position in which the skater glides on one foot with the other foot held above hip level. It's a required element in women's singles figure-skating competition and is related to the arabesque performed in ballet. Figure 5.40 shows Canadian skater Kaetlyn Osmond executing a spiral during her medal-winning perfor- mance at the 2018 Winter Olympics in Gangneung, South Korea. 77. From the photo, you can conclude that the skater is a. executing a turn to her left. b. executing a turn to her right. c. moving in a straight line out of the page. 78. The net force on the skater a. points to her left. b. points to her right. c. is zero. 79. If the skater were to execute the same maneuver but at higher speed, the tilt evident in the photo would be a. less. b. greater. c. unchanged. FIGURE 5.40 Passage Problems 77-80 80. The tilt angle 0 that the skater's body makes with the vertical is given ap- proximately by 0 = tan¯¹(0.5). From this you can conclude…
Knowledge Booster
Background pattern image
Physics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
Text book image
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Text book image
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Text book image
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning