Find the luminosity of a star

Assignment Help Biology
Reference no: EM131899258

A. Find the distance to a Sun-like star (L=3.8x1026watts) whose apparent brightness at Earth is 1.0 x10-10watt/m2

B. You measure the apparent brightness of a particular star to be 2.5 x 10-10watt/m2A parallax measurement shows the star's distance tobe 42 light-years, or about 4 x 1017meters. What is the stars luminosity?

C. Find the luminosity of a star whose apparent brightness is 1.03 x 10-8watt/m2, and whose distance is about 3 x 1018meters.

Reference no: EM131899258

Questions Cloud

What is happening to the carbon atoms : Use Dalton's atomic theory to explain what is happening to the carbon atoms when a diamond is burned and to oxygen and hydrogen atoms
Identify a business problem at an accounting company : Identify a business problem or opportunity at an Accounting company where you are familiar.
Sodium sulfate decahydrate : Give details about the equipment used, which solutions you mixed together, and amounts of each.
What is a polyatomic molecule : What is a polyatomic molecule? What is a diatomic molecule?
Find the luminosity of a star : Find the luminosity of a star whose apparent brightness is 1.03 x 10-8watt/m2, and whose distance is about 3 x 1018meters.
Discuss how the country you chose is different from the us : Discuss how the country you chose is different from the United States. Politics, culture, wealth, history and environmental factors influence the development.
What is the daughter nucleus : What is the daughter nucleus (nuclide) produced when 213Bi undergoes alpha decay? I need it in 4 B format for example.
Acidic solution when dissolved in water : Which of the following yields an acidic solution when dissolved in water? (More than one answer) all numbers are subscripts NO2 NH4Cl NaCl HNO2
Assess the risk of material misstatement from error : ACCT 4543 Objective: This project is designed to help students experience the audit planning process, and thereby see how it helps direct an effective.

Reviews

Write a Review

Biology Questions & Answers

  Plant tissues is incorrectly paired with structure-function

Which of the following plant tissues is incorrectly paired with its structure and function?

  How could a translocation generate genetic changes

In patients with chronic myelogenous leukemia, an odd chromosome is seen in all the cancerous cells. A small piece of chromosome 9 is connected to chromosome 22. This 9:22 translocation is called the Philadelphia chromosome. How could a translocat..

  Terms of explaining the abnormalities of the child

Explain why the DOCTOR orders tests for herpes viruses based on the teenagers symptoms, and the defects and abnormalities of the baby.

  What is a a moss, liverwort, or hornwort; a non-vascular pla

What is a a moss, liverwort, or hornwort; a non-vascular plant that inhabits the land but lacks many of the terrestrial adaptations of vascular plants

  What are the steps involved in forming

What are the steps involved in forming the Ig mRNA(s) that will encode a complete immunoglobulin molecule? Include all steps at both the DNA and RNA level and the molecules involved in the process as well as their function.

  If the price of medical care were set to zero for everyone

if the price of medical care were set to zero for everyone would individual demands for medical care still differ?

  Functions of the cardiovascular system

1. What are the main functions of the cardiovascular system? 2. Which types of bacteria are considered normal cardiovascular system microflora?

  Give evidence that global climate change is anthropogenic

Discuss the evidence that global climate change is anthropogenic. (Provide solid evidence supporting or refuting this idea, and explain your position on the issue.)

  How could you use the diversity of metabolic pathways

Critique this argument. How could you use the diversity of metabolic pathways that produce the same or similar products to support your case

  Future to cure genetic disorders

It may be possible in future to cure genetic disorders by genetically modifying individuals. For example, inserting functional copies of genes that are implicated in some forms of inherited breast cancer.

  Engineered biological oxidation unit

Describe the design considerations inherent in a completely engineered biological oxidation unit. Be sure and describe every aspect of the unit relevant to the design considerations.

  What importance are the swollen and sore lymph glands

The child is running a fever, has fflu-like symptoms, and his lymph glands are very swollen and sore to the touch. Of what importance are the swollen and sore lymph glands.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd