Aflashlight can be made that is powered by the induced current from a magnet moving through a coil of wire. the coil and magnet are inside a plastic tube that can be shaken causing the magnet to move back and forth through the coil. assume the magnet has a maximum field strength of 0.05 t. make reasonable assumptions and specify the size of the coil and the number of turns necessary to light a standard 1-watt, 3-v flashlight bulb.

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j