Answer:
The speed the glow-worm would have accelerated after 10 years if released into free space and assumed to live is 3.09 X 10³⁴ m/s
Explanation:
Energy associated with photon of lights, is given as
E = hc/λ
Where;
h is Planck's constant = 6.626 x 10⁻³⁴ m2 kg/s
C is the speed of light = ?
λ is the light's wavelength = 650nm = 650 X10⁻⁹ m
Also Energy = Power X time
Time given = 10 years
Time in seconds = 10 yrs X 365 days X 24 hrs X 60mins X 60 secs
Time in seconds = 315360000 seconds
P*t = hc/λ
c = (P*t*λ)/h
c = (0.1 X 315360000 X 650 X 10⁻⁹)/(6.626 x 10⁻³⁴)
c = 3.09 X 10³⁴ m/s
The speed the glow-worm would have accelerated after 10 y if released into free space and assumed to live is 3.09 X 10³⁴ m/s