Which of the following is not true of vibrations? a. a non-vibrating object can begin to vibrate as a result of forced vibrations b. two bodies with the same vibration frequency that are placed next to each other will exhibit sympathetic vibrations as one body causes the other to vibrate c. resonance occurs as a result of sympathetic vibrations d. forced vibrations, such as those between a tuning fork and a large cabinet surface, result in much lower sound than was produced by the original vibrating body

Divide 108.2 x 10^6 into 1.5 x 10 and the result will be in au (astronomical units)

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