Dennis let go of a penny at the top of a well, and the penny fell straight down to the bottom of the well. the top
of the well was 15 meters above ground. the bottom of the well was 11 meters below ground.

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Ответ:

edandjill24

10.08.2020

Mathematics

We find the length of the arc followed by the needle. For this, we first need to convert the subtended angle to radians:
96/∅ = 180/π
∅ = 1.68 rad
S = r∅
S = 24 x 1.68
Distance covered by needle = 40.32 cm

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Dennis let go of a penny at the top of a well, and the penny fell straight down to the bottom of the well. the top of the well was 15 meters above ground. the bottom of the well was 11 meters below ground.