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Home Q & A Board Science-Related Homework Help Physics Astronomy
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anja@phs.ae anja@phs.ae
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6 years ago
A resistance of 55. , a capacitor of capacitive reactance 30. , and an inductor of inductive reactance 30.  are connected in series to a 110. V, 60. Hz power source. What current flows in this circuit?
 
  A) 2. A
  B) less than 2. A
  C) more than 2. A but less than 4. A
  D) more than 4. A
  E) 4. A

Question 2

An electron is known to be confined to a region of width 0.10 nm. What is an approximate expression for the least kinetic energy it could have, expressed in eV?
 
  What will be an ideal response?

Question 3

Approximately what mass ratio is required for a rocket to leave the Earth's gravity?
 
  A) 60
  B) 99
  C) 25
  D) 39
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saysaysaysay
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6 years ago
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anja@phs.ae Author
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#2
6 years ago
SoOoOoOo very smart
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