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course Phy 201
Oscillating Candy Bar
You suspended a candy bar from a rubber band chain and counted its oscillations for a minute. You did the same for a stack of 2 dominoes, and for a stack of four dominoes.
Insert a copy of your data here, along with any previously submitted work you wish to include:
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2 dominos- 35 oscillations
4 dominos- 50 oscillations
2 Giant Reese Cups- 38 oscillations
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For each number of dominoes, determine the force constant k, based on your observations of the number of oscillations in a minute (which you can use to find the angular frequency omega) and the mass of the domino stack.
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50= k(4) 35= k(2)
12.5=k 17.5= k
f= 1/60
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You need to use omega = sqrt(k/ m) to determine the values of k. From the number of oscillations in a minute you can find omega in radians / second. Assuming each domino to have mass 15 grams you can determine the mass of the system.
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Are your values of the force constant reasonably consistent?
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The force values are consistent the k values are only 5 oscillations apart.
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Based on your best estimate of the force constant and your observation of the frequency of the oscillations of the candy bar, what is the mass of the candy bar?
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The candy bar is 40 grams.
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This needs to be based on the value of k determined from your previous calculations, and the value of omega for your candy bar's oscillations.
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You need to use omega = sqrt(k / m) in almost all of your calculations. Check my notes.
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