Geography, 25.07.2019 03:30 mistiehaas
Q3.(a) what is parallax and how can we use it to determine the distance to a star? why does it take so long for such a measurement to be made? q4.(b) suppose that you want to determine the temperature, diameter, and luminosity of a star. which of these quantities require you to know the distance to the star? explain your reasonings q5.what do we mean by a star's spectral type? by a star's luminosity class? discuss what they tell us about the star and explain how we classify stars by type and class.
Answers: 2
Geography, 22.06.2019 20:30
What forms of energy are involved when snow on a mountain breaks loose, resulting in an avalanche? during an avalanche, the( 1 ) energy of the snow on the mountain is converted into ( 2 ) energy as the snow cascades down. ( 1 ) a. elastic b. kinetic c. potential d. radiant ( 2 ) a. chemical b. kinetic c. nuclear d. potential
Answers: 2
Geography, 22.06.2019 22:30
When you imagine how you'll get from your house to the store, you are a. mental projection b. mental map c. piagetian projection d. cognitive load
Answers: 1
Geography, 23.06.2019 03:00
Based on the information in the graph, what can you conclude about humans in the world in general?
Answers: 1
Q3.(a) what is parallax and how can we use it to determine the distance to a star? why does it take...
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