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Home Q & A Board Science-Related Homework Help Physics Astronomy
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megandunlap megandunlap
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6 years ago
Total constructive interference occurs when two waves with similar frequency and wavelength
 
  A) are completely out of phase.
  B) are completely in phase.
  C) have 45 degrees phase difference.
  D) have 90 degrees phase difference.
  E) have a phase difference of -90 degrees.

Question 2

What is one advantage that primates have over other forms of life?
 
  A) the ability to run fast
  B) extra-large brains
  C) the opposable thumb
  D) the ability to walk upright

Question 3

Why does a lamp burn out quicker if it is turned on and off many times, rather than one that is left burning?
 
  What will be an ideal response?

Question 4

Electric field lines
 
  A) are closer together the stronger the field.
  B) start on negative charges and end on positive charges.
  C) were invented by Isaac Newton.
  D) are perpendicular to the lines of force.
  E) were discovered by Franklin.
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houghtk2houghtk2
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6 years ago
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megandunlap Author
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#2
6 years ago
Now I'm convinced to ask more questions Slight Smile
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