Why might coal be considered a more efficient source of energy than biomass? (1) Coal is a more concentrated energy source (2) Coal is nonpolluting. (3) Biomass grows very slowly (4) Biomass is only available in windy areas. I

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 

Idon't get it? what do you mean by playing 17 hours on the wii

Ithink you got that right thicc queen

Maybe because they hurt or you bleed a lot