Sunspots often appear in pairs
a. True
b. False
Indicate whether the statement is true or false
True
Physics & Space Science
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The more massive a white dwarf, the ________
A) higher its temperature B) larger its radius C) smaller its radius D) higher its luminosity
Physics & Space Science
Two objects move toward each other due to gravity. As the objects get closer and closer, the acceleration of each
A) increases. B) decreases. C) is not affected.
Physics & Space Science
Two masses are suspended by cord that passes over a pulley with negligible mass. The cord also has negligible mass. One of the masses, 
has a mass of 5.0 kg and the other mass,
has a mass of 3.0 kg. The acceleration of 
is
A. 3.3 
upward.
B. 3.3 upward.
C. 2.5 upward.
D. 2.5 upward.
E. 1.1 upward.
Physics & Space Science
Why is the daytime sky blue?
What will be an ideal response?
Physics & Space Science