sum in physics

  • Thread starter chocopop
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  • #1
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1

Homework Statement:

Find the desired sum: (3±4%)+(4±0.01)

Relevant Equations:

none
please help me
 

Answers and Replies

  • #2
etotheipi
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Well, why not just use the formula for propagation of uncertainties, if ##z = a + b##, then$$\Delta z = \sqrt{(\Delta a)^2 + (\Delta b)^2}$$N.B. you need to convert the percentage uncertainty in the first measurement into an absolute uncertainty first.
 
  • #4
berkeman
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OP has been banned for repeatedly posting homework with zero effort shown, even after multiple warnings. Have a nice day. Thread is locked.
 
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