Geography, 04.07.2019 20:10 birdman2540
When astronomers discuss objects that give off light, such as the sun, we discuss a concept called "luminosity" which is measured in units of energy per unit time. typically this is given in "watts", the same unit of power that is used to rate lightbulbs. the luminosity of the sun is l = 3.8 ã 10 26 watts. however, the brightness of a luminous object depends on how far away you are from it. this is called the "flux" by astronomers. flux is calculated using the formula f = l 4 ? d 2 . the flux of light we receive from the sun here at earth (a distance of one astronomical unit or d = 1.5 ã 10 8 km from the sun) is called the "solar constant". it's measured to be f = 1362 watts per square meter. saturn is 10 au from the sun. what is the flux that saturn receives from the sun in watts per square meter? (hint: there is a very simple way to calculate this using "scaling" techniques and realizing that saturn is 10 times further from the sun than the earth.)
Answers: 2
Geography, 22.06.2019 05:40
Which best explains why england had the highest standard of living in the world in 1990? a.england started industrializing before the rest of the world b.england had the highest population in the world. c.england hadthe most fertile soil in the world. dengland had more natural resources.
Answers: 3
Geography, 22.06.2019 07:00
Explain why components that are naturally found in air can be considered air pollutants.
Answers: 3
Geography, 22.06.2019 12:30
What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors
Answers: 1
Geography, 22.06.2019 19:00
City 24-hr average yearly temperature in ºc total yearly precipitation in mm minsk, belarus (former ussr) (53° n, 27° e) shanghai, china (31° n, 121° e) baltimore city, usa (39° n, 76° w) helsinki, finland (60° n, 24° e) banff, canada (51° n, 115° w) kuala lumpur, malaysia (3° n 101° e) 26.5 2393.6 buenos aires, argentina (34° s, 58° w) jakarta, indonesia (6° s, 106° e) questions 1. what factor contributes most to the warm climate of kuala lumpur? 2. banff and minsk are located at similar latitudes. what could account for banff’s average yearly temperature being lower than minsk’s? 3. which city’s climate is most similar to jakarta, baltimore or kuala lumpur? explain your answer. 4. shanghai and buenos aires have located thousands of miles apart and in different hemispheres, yet their climates are similar. what reasoning could explain this?
Answers: 1
When astronomers discuss objects that give off light, such as the sun, we discuss a concept called "...
Mathematics, 19.11.2019 09:31
English, 19.11.2019 09:31
Spanish, 19.11.2019 09:31
Mathematics, 19.11.2019 09:31
Mathematics, 19.11.2019 09:31
Chemistry, 19.11.2019 09:31
Biology, 19.11.2019 09:31
Social Studies, 19.11.2019 09:31