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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Eminoa Eminoa
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6 years ago
How does the thickness of a lens relate to it being converging or diverging?
 
  What will be an ideal response?

Question 2

What different resistances can be obtained by using two 2.  resistors and one 4.  resistor?
 
  What will be an ideal response?

Question 3

What in a DC motor reverses the polarity and current each half-cycle?
 
  A) a CRT
  B) solid ring commutator
  C) a split ring commutator
  D) fuse

Question 4

The geological record contains fewer older rocks than younger rocks because older rocks
 
  A) are mostly found deep within the Earth
  B) have been transformed by life processes that have occurred inside them
  C) have been destroyed by geological processes like plate tectonics and erosion
  D) have been destroyed by recent meteorite impacts

Question 5

Many Earth-based telescopes are larger than the Hubble Space Telescope, so what justifies the great expense of a space-based instrument?
 
  What will be an ideal response?

Question 6

If 40 kcal of heat is added to 2.0 kg of water, what is the resulting temperature change?
 
  A) 80C
  B) 60C
  C) 40C
  D) 20C
  E) 0.05C
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FnsameFnsame
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6 years ago
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Eminoa Author
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#2
6 years ago
What an awesome place to get free homework help
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#3
6 years ago
What makes it awesome is that you posted, thanks for trusting us
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