Question

If a star is 5,699,999,999,999,999 meters from earth, how long does it take light to travel from earth to the star?

Answer 1

19.013.153,42629466 giây

Step-by-step explanati

van toc ánh sán =299.792.458 m/s

s= v*t

t=s/v

t= 5.699.999.999.999.999/299.792.458= 19.013.153,42629466 giây