A metal blade spins at a constant rate of5.0 revolutions per second about a pivot through one end of theblade. This rotation occurs in a region where the component of theearth's magnetic field perpendicular to the blade is 30 T. If the blade is 60 cm in length, what is the magnitude ofthe potential difference between its ends? 1. 0.20mV
2. 0.34 mV
3.0.27 mV
4. 0.24mV
5. 0.17mV

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

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle