The visual and audio components of an event would reach you at the same time regardless of distance. For example when you see lightning strike in the distance, and it takes awhile to hear the thunder. If light traveled at 761, you would see, and hear it simultaniously.
It is 670,616,629 mph.
About 761 mph
The speed of light = 670,616,629 mph
Speed of light (in vacuum)= approx 671,000,000 mph.Speed of sound (in air at sea level) = approx 760 mph.
'Mach ' is the speed of sound. This depends on air pressure and temperature. On a median day at sea level this is normally 761 mph. That figure can vary if air conditions are changed, but based on this common number, mach 4.5 is 3,324 mph.
Sonic speed which is known as Mach 1 is the speed of sound which is 761 mph.
About 761 mph
It is 670,616,629 mph.
The speed of light = 670,616,629 mph
About 761 mph at sea level.
The speed of light in mph (miles per hour) is 670,616,629 mph.
Way slower. For reference, the speed of sound is about 767.3 mph and the speed of light is 671,000,000 mph.
No, a cheetah's top speed is around 70 mph while light moves at about 300,000 mph.
1mile = 1.609 km Speed of light in kms-1 = 300000 kms-1 Speed of light in miles per sec = 300000/1.609 ms-1 = 186451.21 ms-1 In mph, speed of light = 671224362.958 mph
1mile = 1.609 km Speed of light in kms-1 = 300000 kms-1 Speed of light in miles per sec = 300000/1.609 ms-1 = 186451.21 mps In mph, speed of light = 671224362.958 mph
Speed of light (in vacuum)= approx 671,000,000 mph.Speed of sound (in air at sea level) = approx 760 mph.
This is the rough formula. Mach = velocity/speed of sound This is rough because conditions are truly variable, but............ 79 Mach = velocity/768 mph = ~606070 miles per hour