What is the main idea of "Solar Conjunction: When the Sun Gets in the Way"? 1.Radio signals must pass through the solar corona.
2.A Mars year is about 1.9 Earth years.
3.The Solar Conjunction is a once-in-a-lifetime occurrence.
4.There is a period of time when the Deep Space Network won't be gathering data.

The answer is #4: there is a period of time when the deep space network won't be gathering data.

Explanation:

I think this is the answer. I hope it helps.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//