Identify two things you can understand by looking at this model of our solar system that would be difficult to see if you looked at the sky from Earth. Provide evidence to support your claim, and explain your reasoning.

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;