Plz I need help!! 18- Consider the circuit represented in
figure 16.
The dry cell maintains a constant
voltage Upx=9 V; Ri=100 12 and
R2200 2
a Find the resistance of the resistor
equivalent to the two resistors.
b- Calculate the current sent by the dry
cell
Calculate the voltages UI and Uz across
Ri and R2 respectively. Verify the law of
addition of voltages

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 

The relationship of both of them