PLEASE HELP WITH THIS QUESTION!!!!
2 answers:
The combined weight of all the samples can simply be calculated by the arithmetic sum of all the individual weights of each sample.
The total <em><u>combined weight</u></em><em> </em>of all the samples is "114.22 lb".
Adding the individual weights of each sample we get:
Combined weight = Weight of sample 1 + Weight of sample 2 + Weight of sample 3
Combined Weight = 31.2 lb + 38.02 lb + 45 lb
<u>Combined Weight = 114.22 lb</u>
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The attached picture shows weight addition.
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Answer:
c)by a factor of four
Explanation:
The total energy of a simple harmonic oscillator is given by
where
k is the spring constant of the oscillator
A is the amplitude of the motion
In this problem, the amplitude of the oscillator is doubled, so
A' = 2A
Therefore, the new total energy is
So, the total energy increases by a factor 4.