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Zinaida [17]
4 years ago
11

Please help, I really don't know

Physics
1 answer:
zubka84 [21]4 years ago
7 0

circular motion.

cent acc = r omega^2 ... omega is ang vel ... omega=2pi/T ,,,

9.8=rx(2pi/T)^2

if r is known, solve for T


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Because the coefficient of friction depends on the surface
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4 years ago
How does wavelength change depending on whether the pipe is open or closed?
il63 [147K]

Answer:

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Explanation:

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* in a tube with both ends open

in this case there are maximums at each end, so if the length of the had is L

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              λ = 2 L / 2 2nd harmonic

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              λ = 4L / 5

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4 0
3 years ago
For the chemical reaction C2H6 --> C2H4 + H2 + 137kJ, the chemical energy of the A. reactant and the chemical energy of the p
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4 0
3 years ago
Read 2 more answers
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san4es73 [151]

Answer:

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Given parameters:

        Given equation:

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y = ?

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 We are going to solve this problem by substitution;

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  since x = -2; input this into the equation to solve for y;

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3 years ago
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5 0
3 years ago
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