A machine weighing 2600 lb is mounted on springs of stiffness 10000 lb/in. Inside the machine a piston that weighs 60 lb moves up and down at a speed of 600 RPM and a stroke of 15 in. The motion of the piston is a sine wave. What is the magnitude of the forced transmitted to the foundation

frequency or wavelenth of em radiation in a vacuum

overcharge is the right answer system

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