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3 years ago

¿Cuál es el valor de la velocidad angular de una rueda que gira desplazándose a 15

Physics

1 answer:

Shalnov [3]3 years ago

8 0

Answer:

$\omega = 75~rad/s$

Explanation:

Velocidad Angular

Un objeto en rotación con movimiento circular uniforme describe ángulos iguales en tiempos iguales.

La velocidad angular ω es una magnitud que mide el ángulo θ que gira una partícula en cierto tiempo t, según la fórmula:

$\displaystyle \omega = \frac{\theta}{t}$

La velocidad angular suele medirse en radianes/segundo, revoluciones/minuto, grados/segundo, etc.

Si la rotación es uniforme, el valor de la velocidad angular es constante.

La rueda del problema a resolver se desplaza θ=15 rad en t=0.2 s, así que su velocidad angular es:

$\displaystyle \omega = \frac{15~rad}{0.2~s}$

$\omega = 75~rad/s$

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. A driver travels 4.25 km. in two minutes. If the driver’s initial velocity is 20m/s, what is the acceleration?

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3 years ago

In a Young’s interference experiment, the two slits are separated by 0.150 mm and the incident light includes two wavelengths: l

dezoksy [38]

Answer:

2.52 × 10⁻² cm

Explanation:

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Here, wavelength is λ, Distance of the screen from the slits is D, seperation between the

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Separation between the slits, d = 0.15 mm

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By substituting all these values in the above equation we get

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$y1 = m(5.04 * 10^{-3} m)$

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By substituting all these values in the above equation we get

$y_2 = \frac{m\lambda D}{d}$

$y_2 = m(450 * 10^{-9} m)(1.40 m)/(0.15 * 10^{-3} m)$

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$y_1 = y_2$

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8 0

3 years ago

1. A wheel has a radius of 4.1 m. How far (path length) does a point on the wheel travel if the wheel is rotated through angles

Olin [163]

Answer:

a) 2.15 m

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$L= 60\pi \cdot 4.1=772.8 \ m$

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3 years ago