Question

The speed of light in a vacuum is 2.998 x 108 m/s. What is its speed in kilometers per hour (km/h)? העתK speed = What is its speed in miles per minute (mi/min)? speed = mi/min

Answer 1

Speed of light = 1.0793 × 10⁹ km/h

Speed of light = 1.115 × 10⁷ km/h

Step-by-step explanation:

Given that:

The speed of the light = 2.998 × 10⁸ m/s

To find the speed of light in km/h

So,

1 m = 10⁻³ km

1 s = 1/3600 hr

So,

The speed of the light = (2.998 × 10⁸ × 10⁻³) × 3600 km/h

Speed of light = 1.0793 × 10⁹ km/h

To find the speed of light in mi/min

So,

1 m = 0.00062 miles

1 s = 1/60 min

So,

The speed of the light = (2.998 × 10⁸ × 0.00062) × 60 mi/min

Speed of light = 1.115 × 10⁷ km/h