Students are studying the connection between electricity and magnetism. They have been tasked with building a simple electric motor. One group collected these various materials:
9 volt battery
wire for leads
copper wire rotor
platform to hold the rotor
magnet
wood for a base

The students constructed their motor and found, once completed, that it worked! Which statement below explains the flow of energy through the group's motor?
A) battery-->electrical current-->copper wire rotor -->magnet--> mechanical energy
B) battery--> magnet--> electrical current--> copper wire rotor--> mechanical energy
C) magnet--> mechanical energy--> copper wire rotor--> battery--> electrical current
D) magnet--> copper wire rotor--> mechanical energy--> battery--> electrical current

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

falling water hydro = water .. spectcular places these plants are

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min