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irinina [24]
3 years ago
13

Need help asap pls be right no trolls

Mathematics
1 answer:
mel-nik [20]3 years ago
7 0
I think it’s C but i’m not sure
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What do you mean... $245???
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A mass weighing 13 lb stretches a spring 4.5 in. The mass is also attached to a damper with coefficient Y. Determine the value o
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Answer:55.227

Step-by-step explanation:

Given data

mass \left ( m\right )=13lb

spring stretches by \left ( x\right )=4.5in=0.375 ft

g=32ft/s^2

Now Spring constant K

mg=kx

k=\frac{13\times 32}{y}=58.667lb/ft

For critical damping \zeta =1

2\times \zeta \times \omega_n =\frac{c}{m}

and \omega_n=\sqrt {\frac{k}{m}}

\omega _n=2.1241rad/s

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5 0
3 years ago
Please help me with question 16!! Thanks
REY [17]
0.25 since each is 1/4 of the square 
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4 years ago
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rosijanka [135]
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3 years ago
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In a right triangle, angle C measures 40. the hypotenuse of the triangle is 10 inches long. what is the approximate length of th
IrinaVladis [17]

Since angle C is not 90 degrees, it's one of the acute angles
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               (The side adjacent to angle C ) divided by (hypotenuse)

is the cosine of angle C .       


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Multiply each side by (10 inches):

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