Answer:
A. 3.03 minutes
B. 3.03 minutes
C. 6.06 minutes
D. 475.4 minutes = 7.923 hours
Step-by-step explanation:
A. Speed of radio wave = Speed of light = 300000000 m/s
Distance between Earth and Mars = 54600000 km = 54600000000m
Time taken = distance/speed
Time taken = 54600000000/300000000
Time taken = 182 seconds = 3.03 minutes
B. It will take the same time for it to travel back to Earth i.e. 3.03 minutes
C. Total time it will take to travel from Earth to Mars and back to Earth will be
3.03 * 2 = 6.06 minutes.
D. Distance between Earth and Pluto = 4280000000 km = 4280000000000 m
Time taken to get from Earth to Pluto will be
Time = 4280000000000/300000000
Time = 42800/3 = 14266.6 secs = 237.7 minutes
To travel from Earth to Pluto and back to Earth will be
237.7 * 2 = 475.4 minutes = 7.923 hours