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Crank
3 years ago
9

An observer sees a lightning flash from a distant thunder-storm and 12 seconds later hears the sound. if the temperature of the

air is 20 c, how far from the storm is the observer?
Physics
1 answer:
stellarik [79]3 years ago
6 0

Answer:

The answer is 3597501.48 km

Explanation:

The speed of light is 299792 km/s.

The speed of sound is 0.343 km/s

The difference is 299791.76 km/s

and of there is 12 second difference between sound and the light. The distance will be:

299791.76*12=3597501.48

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3 years ago
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Certain neutron stars (extremely dense stars) are believed to be rotating at about 1000 rev/s. If such a star has a radius of 14
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Answer:

minimum mass of the neutron star = 1.624 × 10^30 kg

Explanation:

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8 0
3 years ago
Un avión vuela a una velocidad de 900 km/h. Si tarda en viajar desde Canarias hasta la península 180 s ¿qué distancia recorre en
wel

Answer:

El avión recorrió 45 km en los 180 s.

Explanation:

La relación entre velocidad, distancia y tiempo se da de la siguiente manera;

Velocidad= \dfrac{Distancia}{Hora}

Por lo cual los parámetros dados son los siguientes;

Velocidad = 900 km/h = 250 m / s

Tiempo = 180 s

Estamos obligados a calcular la distancia recorrida

De la ecuación para la velocidad dada arriba, tenemos;

Distancia recorrida = Velocidad pf viaje × Tiempo de viaje

Distancia recorrida = 900 km/h × 180 s = 900

Distancia recorrida = 900 km/h × 1 h/60 min × 1 min/60 s × 180 s = 45 km

Por lo tanto, el avión viajó 45 km en 180 s.

8 0
3 years ago
The ratio of the focal length of a lens to it's diameter is the​
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Answer:

The f-ratio describes the relationship between the lens diameter and the focal length and is calculated by dividing the focal length by the diameter of the lens. For example, if a lens were to have a focal length of 50mm and a diameter of 10mm, then the f-ratio would be 50mm/10mm=5 or otherwise referred to as f5.

Explanation:

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2 years ago
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A man ran the 200m race within 19.19 seconds. Calculate the speed of the man during the race
natta225 [31]

Answer:

around 23 miles per hour

4 0
3 years ago
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