The speed of light varies depending on what kind of material it's traveling through.
It's fastest when in vacuum, and it's different, and slower, in air, water, alcohol,
oil, glass, jello, etc.
Chat with our AI personalities
Obstructions, black holes, etc.
because the speed is constant..
No, speed can vary and one can still calculate the average speed of an entire trip. Average speed is equal to the change in distance divided by the change in time.
Foot-candle is a unit of light intensity, not of power like watts. The power would vary, depending on the color of the light.Foot-candle is a unit of light intensity, not of power like watts. The power would vary, depending on the color of the light.Foot-candle is a unit of light intensity, not of power like watts. The power would vary, depending on the color of the light.Foot-candle is a unit of light intensity, not of power like watts. The power would vary, depending on the color of the light.
The average speed is (60 km) / (2 hr) = 30 km/hr. The speed along the way would most likely vary above and below that number.