The diagram below illustrates two stars in a visual binary system and the center of mass of this system. Based on this diagram, what is the ratio of the mass of star A to the mass of star B?
a.
2 to 1
b.
1 to 2
c.
2 to 3
d.
3 to 2
e.
1 to 3
B
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Meteor Crater in Arizona is about 1.2 kilometers across. According to the graph, about how big was the object that made this crater? (Note: Be sure to read the axis labels carefully.)
A) 1 meter B) 10 meters C) 100 meters D) 1 kilometer
A book can slide down a frictionless hill at constant velocity
Indicate whether the statement is true or false
You are removing a pie from a 350°F oven, and while you need to protect your hands from the pie pan, the backs of your hands and your wrists and forearms are unprotected, yet they don't get burned. Why?
What will be an ideal response?
A telescope is set up in introductory physics lab using a 10 cm lens and a 50 cm lens. Since both lenses are the same diameter it is not evident which one to use as the eyepiece and which one to use as the objective. If one uses the 50 cm lens as the eyepiece, what power results?
a. 
b. 
c. 
d. 
e. one cannot look through the system in this direction