Agirl on a spinning amusements park is 12m from the center of the ride and has a centripetal acceleration of 17 m/s^2. what is the girl's tangential speed?

14.28 m/s

Explanation:

Assuming the girl is spinning with uniform circular motion, her centripetal acceleration is given by the following equation:  

(1)

Where:  

is the centripetal acceleration

is the tangential speed

is the radius of the circle

Isolating from (1):

(2)

Finally:

This is the girl's tangential speed

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6