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3 years ago

Are digital signals the only signals that use binary code?

Physics

1 answer:

Scrat [10]3 years ago

3 0

Yes, because the many ones and zeros translate to a variety of things.

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A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center

Andrei [34K]

Answer:

The angular speed is $\omega_2= 3.81s^{-1}$ .

Explanation:

The law of conservation of angular momentum says that for an isolated system

$I_1\omega_1 = I_2 \omega_2$

Now, when the student is at the rim of the platform the moment of inertia of the system is

$I_1 = mr_1^2+275kg\cdot m^2$

$I _1 = (62.3kg)(3.22m)^2+275kg\cdot m^2$

$I_1 = 920.95kg\cdot m^2$ ,

and the angular speed is

$\omega_1 = 1.33s^{-1}$ .

When the student is $r_2 = 0.861m$ from the center,the moment of inertia of the system becomes

$I_2 =mr_2^2+275kg\cdot m^2$

$I_2 =(62.3kg)(0.861m)^2+275kg\cdot m^2$

$I_2= 321.18kg\cdot m^2$

Thus, from conservation of angular momentum

$(920.95kg\cdot m^2)(1.33s^{-1})= (321.18kg\cdot m^2)\omega_2$

$\omega_2=\dfrac{ (920.95kg\cdot m^2)(1.33s^{-1})}{(321.18kg\cdot m^2)}$

$\boxed{\omega_2= 3.81s^{-1}}$

which is the angular speed when the student is 0.861 meters from the center.

3 0

3 years ago

The frequency of the middle c note on a piano is 261.63 hz. What is the wavelength of this note in centimeters? The speed of sou

Sholpan [36]

Answer:

1.31 m

Explanation:

The relationship between frequency and wavelength of a sound wave is

$c=f \lambda$

where

c is the speed of the wave

f is the frequency

$\lambda$ is the wavelenfth

In this problem, we have

c = 343.06 m/s

f = 261.63 Hz

So we can solve the formula for the wavelength:

$\lambda=\frac{c}{f}=\frac{343.06 m/s}{261.63 Hz}=1.31 m$

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Apple juice in a bottle has a volume of 475 cubic centimeters and a mass of 494 grams .Calculate its destiny

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The colors of light emitted by incandescent gases show the A. absorbing qualities of gas. B. polarization of atoms in the gas. C

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B polarized of stoms

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Find the configuration of any tow

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Answer:

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