120n
since the speed is doubled, her force is doubled
Part a
Answer: 17.58 km/h

Total Distance =10 km
Total time =0.5689 h

Part b
Answer: 17.626 km/h

Total Distance =42.195 km
Total time =2.3939 h

When a red giant has insufficient mass it pretty much sheds its outer layer to leave the center core know as the white dwarf
A, electromagnetic radiation
600. I forgot the measurement. but 600 is correct