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Author Question: What is the closest thing to a binary planet we find in the solar system? Why? What will be an ... (Read 47 times)

justinmsk

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What is the closest thing to a binary planet we find in the solar system? Why?
 
  What will be an ideal response?

Question 2

Star X has an apparent magnitude of 3, and star Y has an apparent magnitude of 13. How do they compare in observed brightness?
 
  A) Star Y is 10,000 times brighter than star X. B) Star X is 10,000 times brighter than star Y.
  C) Star Y is 10 times brighter than star X. D) Star X is 10 times brighter than star Y.



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chloejackso

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Answer to Question 1

Pluto's moon Charon is half as big as Pluto, and both objects are tidally fixed to always face each other during their 6.4 day rotations.

Answer to Question 2

B





 

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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