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Homework question needed because physics teacher doesnt want to help me

  • #1

Homework Statement


An electron travels 1.68 m in 6.74 × 10−8 s.
How fast is it traveling?
Answer in units of m/s


Homework Equations





The Attempt at a Solution



(1.68)/ (6.74 x 10 ^ -8) = 24925816.02

i asked the teacher on this education facebook thingy for our school called edmodo if i was getting it right, teacher said he didn't understand what i meant by that :devil:. He didn't answer my second question, I'm now confused.
 

Answers and Replies

  • #2
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3,280
Seems correct!!

However, don't forget your units. This is very important as it will prevent you from making mistakes.

What you should write is:

[tex]\frac{1.68 m}{6.74\cdot 10 ^{ -8} s} = 24925816.02 \frac{m}{s}[/tex]
 
Last edited:
  • #3
so it is correct and my calculator isn't crazy? thankyou micro so much :D !! yes i won't forget my units! :)
 

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