Answer:
change 1000km into Metre
1000km=1000000 M
speed= distance/time
time=distance/speed
time=1000000/299792458
time= 0.0033second
the mass of mars is
6.39 × 10^23 kg
Answer: It would be 75
Explanation: If your pushing on the floor at a rate of 5 for 15 seconds you would multiply the numbers and get 75
