This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Stars A and B have the same temperature, but star A has twice the radius of star B. What is the ... (Read 143 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jul 28, 2018
Stars A and B have the same temperature, but star A has twice the radius of star B. What is the ratio of star As power output to star Bs output due to electromagnetic radiation? The emissivity of both stars can be assumed to be 1.
  1.4
  2.8
  3.16
  4.64

Question 2

Two rods of the same length and diameter are made from different materials. The rods are to connect two regions of different temperature so that energy will transfer through the rods by heat. They can be connected in series, as in figure a, or in parallel, as in figure b. In which case is the rate of energy transfer by heat larger?
 


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cici

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 28, 2018
Answer to Question 1

1

Answer to Question 2

2


K@

  • Member
  • Posts: 608
Reply 2 on: Jul 28, 2018
Wow, this really help

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Pre–Main-Sequence Stars Pre–Main-Sequence Stars
Atomic Radius Atomic Radius
Selecting a Method for Measuring Body Temperature Selecting a Method for Measuring Body Temperature
Chlamydospore or spherule that occurs at body temperature. Chlamydospore or spherule that occurs at body temperature.
Check heat source for temperature. Evaluate the amount of heat given off from the source using your ... Check heat source for temperature. Evaluate the amount of heat given off from the source using your ...
Calculate KP for the following reactions at the indicated temperature. Calculate KP for the following reactions at the indicated temperature.
Video: Double Vacuum Process (Illustration No Audio)

For a complete list of videos, visit our video library