The conversion factor relating miles to meters is 1mile=1610m. the speed of light is 3.00×108 m/s. how fast is this in miles per hour (miles/h)?

The Speed of Light is 3 × 10⁸ Meters per Second

It means In one second Light travels a Distance of 3 × 10⁸ Meters

We know that One Hour is made up of 60 minutes and Each Minute has 60 seconds.

One Hour has 60 × 60 = 3600 seconds

In 3600 seconds Light Travels a Distance of 3 × 10⁸ × 3600 Meters

In One hour Light Travels a Distance of 3 × 10⁸ × 3600 Meters

We know that One Mile = 1610 Meter

3 × 10⁸ × 3600 Meters in Miles = (3 × 10⁸ × 3600)/1610 = 6.7 × 10⁸ Miles

The Speed of Light in Miles per Hour is 6.7 × 10⁸

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this