4. The gravitational force between two objects (mass1 = 8 kg, mass2 = 4 kg) is measured when the objects are 40 centimeters apart. If the distance between them is decreased to 10 centimeters, how does the new gravitational attraction compare to the first one that was measured?

Then the answer would be d then

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

That big glowy thing in the sky is called the sun