Force
Newton, abbreviated as N
Average acceleration is the ratio of the change in velocity to the time it takes for that change to occur:

We want to find
:


One Astronomical Unit is the distance between the Earth and the Sun, this acts as a sort of a cosmic metre stick. Astronomers don't and cannot measure distances. Distances are merely inferred from what actually has been measured, such as an angle, a relative luminosity, a time period
True is the answer. I believe
B.yellow-white is the answer.