Experimentally, the free oscillation mode frequency is obtained by a read out from the oscilloscope screen. a student has found that 5 full periods of the damped oscillations cover 5.0 major divisions on the horizontal scale, with time-sweep knob indicating 10 microsecond/division. what is the frequency obtained from the experimental read out? with preserved setting of the osc

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.

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