Mass is indirectly proportional to acceleration, so, lighter the object greater would be it's acceleration...
A) 0.10 kg is lightest among them, so it's your answer
The answer is A) specific chemical consumption
The change in velocity is +4 m/s to the right (or -4 m/s to the left).
The object's mass is irrelevant.
The sun is a star (a giant ball of burning gases).
The answer is 86 degrees Fahrenheit. Formula is (30 x 9.5) + 32 = 86