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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Tegab Tegab
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6 years ago
A mass of 50. kg is suspended from a steel wire of diameter 1.0 mm and length 11.2 m. How much will the wire stretch? (The Young's modulus for steel is 20  1010 N/m2.)
 
  What will be an ideal response?

Question 2

If you find yourself in a locality where the magnetic declination is 15. East, in which direction is true North in relation to a compass needle?
 
  What will be an ideal response?

Question 3

At the lower left of the HertzprungRussell diagram we find
 
  A) supergiant stars
  B) red giant stars
  C) white dwarfs
  D) main sequence stars

Question 4

Why can a 25. watt fluorescent lamp produce as much illumination as a 100. watt incandescent lamp?
 
  What will be an ideal response?
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MikestreffMikestreff
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6 years ago
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Tegab Author
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#2
6 years ago
I wanna give this person a hug.
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