Sarah and Maria made a telephone using two cans and a string. They pulled the string tight and Maria went out into the hallway.
When Maria spoke into her can, Sarah could hear her because the sound waves
A)
travelled through a vacuum.
travelled from the cold hallway to the much warmer classroom.
travelled from the vibrating can through the string to the other can.
travelled through the air from Maria to Sarah even though they were in
different places

mistakes are ok

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop

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