Use these numbers: the mass of the man is 75.0 kg, and the mass of the daughter is 25.0 kg. halfway through the process, the man and the daughter are each traveling with speeds of 1.20 m/s, with the man's velocity directed toward one end of the canoe and the daughter's velocity directed toward the other end of the canoe. that is all as measured by a stationary observer on the shore. as seen by that same stationary observer on the shore, what is the speed of the canoe at this instant? m/s

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

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.