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Lubov Fominskaja [6]
3 years ago
10

A violin has a string of length

Physics
2 answers:
Shtirlitz [24]3 years ago
7 0

Answer:

1.9kHz

Explanation:

Given data

wavelength \lambda= 0.32m

velocity v= 622 m/s

We know that

v= f* \lambda\\\\f= v/ \lambda

substitute

f= 622/ 0.32\\\\f= 1943.75\\\\f= 1.9kHz

Hence the frequency is 1.9kHz

Kazeer [188]3 years ago
7 0

Answer:

971.2

Explanation:

It was right on acellus :)

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A 297 g block is connected to a light spring with spring constant 4.34 N/m, and displaced 7.45 cm from equilibrium. It is then r
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Answer:

x = A sin ω t       describes the displacement of the particle

v = A ω cos ω t

a = -A ω^2 sin ω t        

a (max) = -A ω^2     is the max acceleration (- can be ignored here)

ω = (K/ m)^1/2        for SHM

F = - K x^2     restoring force of spring

K = 4.34 / .0745^2 = 782 N / m

ω = (782 / .297)^1/2 = 51.3 / sec

a (max) = .0745 * 782 / .297 = 196 m / s^2

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Who are the scientists given credit for discovering electrons, protons, and neutrons?
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J.J. Thompson is the scientist who recieved credit for discovering them.
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3 years ago
Mary and her younger brother Alex decide to ride the 26 ft diameter carousel at the State Fair. Mary sits on one of the horses i
hammer [34]

Answer:

a_M=1.92a_A

Explanation:

\omega_M=\omega_A = Angular speed

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r_A = Distance of Alex = 6 ft

Ratio of centripetal acceleration is given by

\dfrac{a_M}{a_A}=\dfrac{\omega_M^2r_M}{\omega_A^2r_A}\\\Rightarrow \dfrac{a_M}{a_A}=\dfrac{r_M}{r_A}\\\Rightarrow a_M=a_A\dfrac{r_M}{r_A}\\\Rightarrow a_M=\dfrac{11.5}{6}a_A\\\Rightarrow a_M=1.92a_A

Mary's centripetal acceleration is 1.92 times the centripetal acceleration of Alex

8 0
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To increase the current in a circuit, which can be increased?
wariber [46]

Answer:

A. Voltage

Explanation:

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an acorn falls from a tree. ignoring air resistance, what forces are on the acorn while it’s falling?
Triss [41]

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Explanation:

4 0
2 years ago
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