PlEASE HELP quick I am in The middle of a quiz. Who ever gets it right I will give you and 20 points.

The second option

Explanation:

Radiation can be shown through emission of waves (those wavey lines that are present) Radiation emits heat so it would transfer heat to a cold or less hot surface (so it would start of hot then transfer thermal energy to a cold surface)An example would be the sun's radiation hitting the earth

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 

Ibelieve the answer is either b or c, but i'm leaning more towards c.hope my answer has you : )