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tangare [24]
3 years ago
10

How long does it take to go 3000 miles at the speed of light?

Physics
1 answer:
Crank3 years ago
4 0

3000 miles (1609 meters/1 mile)

= 4827000 meters

Light travels at 2.998 X 10^8 m/s

4827000 meters (1 s/2.998 X 10^8 m/s)

= 0.016 seconds

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Answer:

Answered

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Un cuerpo se lanza verticalmente hacia arriba con una velocidad de 13 m/s. ¿Cuánto tiempo tarda en alcanzar la altura máxima? a)
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Answer:

D. 1.33 segundos.

Explanation:

El cuerpo es experimenta un movimiento en caída libre al modificarse su velocidad por efecto de la gravitación terrestre. Este cuerpo alcanza instantáneamente el reposo cuando se encuentra a su altura máxima, el tiempo puede obtenerse sabiendo la aceleración y las velocidades incial y final a partir de la siguiente ecuación cinemática:

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v - Velocidad final del cuerpo, medida en metros por segundo.

v_{o} - Velocidad inicial del cuerpo, medida en metros por segundo.

g - Aceleración gravitacional, medida en metros por segundo al cuadrado.

t - Tiempo, medido en segundos.

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t = 1.326\,s

Por ende, la respuesta correcta es D.

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