- #1

ncm2

- 16

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## Homework Statement

1. A cylindrical can with radius of 3.1 +/- 0.4 cm and height 4.5 +/- 0.5 cm. What is the uncertainty in volume in cm cubed?

2. If theta= 0.40 +/- 0.02 radians, what is the uncertainty of y = tan (theta)?

## Homework Equations

Volume of cylinder = Pie * r^2 * h

## The Attempt at a Solution

1. Uncertainty of Volume/Volume = Pie * square root of [(4*(.4/3.1)^2) + (.5/4.5)^2]

My answer is 186 which does not seem right.

2. Uncertainty of y = tan (.02/.4)*(tan .40)

My answer is 6.1E-6, which seems too small to be correct.