subject
Physics, 23.11.2019 03:31 ashlee7877

Suppose a star with radius 8.50 x 10⁸ m has a peak wavelength of 685 nm in the spectrum of its emitted radiation. (a) find the energy of a photon with this wavelength. (b) what is surface temperature of the star? (c) at what rate is energy emitted from the star in the form of radiation? assume the star is a blackbody (e = 1). (d) using the answer to part (a), estimate the rate at which photons leave the surface of the star.

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 22:30
A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?
Answers: 1
question
Physics, 22.06.2019 05:00
Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?
Answers: 1
question
Physics, 22.06.2019 09:20
Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers
Answers: 1
question
Physics, 22.06.2019 11:30
Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon
Answers: 1
You know the right answer?
Suppose a star with radius 8.50 x 10⁸ m has a peak wavelength of 685 nm in the spectrum of its emitt...
Questions
question
English, 08.07.2021 18:10
question
Mathematics, 08.07.2021 18:10
question
Mathematics, 08.07.2021 18:10
question
Biology, 08.07.2021 18:10
Questions on the website: 13722363