The answer is C. I hope I helped!
She does 200J .
We know she uses 20N of force and 10m is the distance. We multiply both numbers and we are given our answer of 200J. Hope this was helpful. :)
Answer:
Only main sequence stars have a well-defined relationship between spectral type and luminosity.
Explanation:
Low-mass stars have much longer lifetimes than high-mass stars.
Gains at least one nutrient
i think photons with shorter wavelengths have larger speed.
I apologise if its incorrect.