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Andrews [41]
3 years ago
9

A printed circuit board (PCB) is supported by a chassis that is attached to a vibrating motor. The board is 1.6 mm thick, 200 mm

wide, 254 mm long, and has a mass of 0.6 kg. Neglect damping, model the board as a doubly clamped beam, determine its stiffness and natural frequency, and compute the displacement transmissibility if the chassis vibrates at 60 Hz due to motor unbalance. The board is made from e poxy fiberglass for which E = 1.38 x 10^10 N/m2
Physics
1 answer:
Vedmedyk [2.9K]3 years ago
5 0

jtejyrkekdkeludmydmumud

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Answer:

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Explanation:

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3 years ago
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3 0
3 years ago
Read 2 more answers
Suppose you illuminate two thin slits by monochromatic coherent light in air and find that they produce their first interference
strojnjashka [21]

Answer:

1.7323

Explanation:

To develop this problem, it is necessary to apply the concepts related to refractive indices and Snell's law.

From the data given we have to:

n_{air}=1

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\theta_{air}35.09\°

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We need to calculate the index of refraction of the liquid, then applying Snell's law we have:

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n_{liquid} = \frac{n_{air}sin\theta_{air}}{sin\theta_{liquid}}

Replacing the values we have:

n_{liquid}=\frac{(1)sin(35.09)}{sin(19.38)}

n_liquid = 1.7323

Therefore the refractive index for the liquid is 1.7323

6 0
3 years ago
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