Qualification > Sciences

physics

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sweetsh:
?!
I answered this with our tutor today. Going to check

angelic:

--- Quote from: sweetsh on May 10, 2009, 08:42:02 pm ---MJ03 b)i) c=1.2*3.142
=3.77 mm=0.37cm
ii) 90 degree -> 0.37
   360 degree-> x
x= (using cross multplication) 1.48cm

--- End quote ---

sweetsh i think ur answer is wrong .. we should devide 3.77mm by 4 which gives us 0.94 mm

sweetsh:
Yes i) is right ii) is wrong. I blame my teacher, sorry.

emi:
its ok ,,,
but how did u know to divide by 4 ???

godfather93:
you have to divide it by four because it says that the pointer moved through to 90o. And 900 is 1/4 of the pin's circumference.

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