First Assignment
I have Seeds Eighth edition.
On page 28 there is a "Problems" Section starting on the lower right. Do problems 1-7 (out of 90.
Each of these problems can be solved by using the chart on page 14. Notice that for problem 5 and 6 the magnitude difference isn't on the chart. Either you guess at the answer use the nearby numbers or you can use the equation on page 14.
For example, I have two stars with a magnitude difference of 7.3. My intensity ratio Ia/Ib=2.512^(mb-ma). My mb-ma is the magnitude difference which in this case is 7.3.
S0 I take 2.512^7.3=832 (rounded). Try it.
David
This is due January 26 (a Thursday).
You may comment to this post if you have difficulties and I will answer your questions.
posted by David @ 1:29 PM
4 comments
4 Comments:
My mistake, It is 832. I was having problems posting here (bad cookie) and forgot the correct number.
Long and the short. Here at 44 degress north there are constellations near the north celelstial pole that NEVER set, we can see them all year round. The big and small dippers are classic circumpolar constellations, so is Cassiopeia. Other constellations we can only see at night during certain seasons, Orion is a winter object, Hurcules is a summer object. Don't worry about page 23-24.
David
The first three are as easy as you think. Did you work through the example I posted here? the numbers are in the problems themselves save problem 7. Tell me if you can do the calculations in my example or not.
Do not try to make this course harder than it is, if the answers to some of the problems seem too easy that is because they are very easy.
David
In general I reply immediately when I get homework. The only exception is I can't get to the physics@qvcc.commnet.edu account at home, so things sent over the weekend need to wait tell Monday.
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