Question

What is the speed of light in a vacuum?(1 point)
Responses

a) v=3⋅10^8 m/s
v equals 3 times 10 superscript 8 baseline m per s

b) v=2⋅10^8 m/s
v equals 2 times 10 superscript 8 baseline m per s

c) c=2⋅10^8 m/s
c equals 2 times 10 superscript 8 baseline m per s

d) c=3⋅10^8 m/s

Answer 1

impatient much?
Once is enough, thank you.
Repeated postings will not get faster or better responses.

Answer 2

d) c=3⋅10^8 m/s