A solar cell has a short circuit current density of 30 mA cm2 and opern circuit voltage of 0.60 V under one-sun illumination at room temperature Use the ideal diode equation to calculate the open circuit voltage which is expected under illumination by 100 suns, stating any assumptions made. In practice an open-circuit voltage of 0.66 V is measured. Compare this with your result and suggest reasons for any discrepancy.

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 

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