Amechanical wave may be described as a disturbance that is transported through a medium via the mechanism of particle-to-particle interaction. which of these is not classified as a mechanical wave? a) earthquake b) light c) sound d) water

B)light

Explanation:

Light is an electromagnetic wave. Electromagnetic waves are oscillations of electric and magnetic fields that propagate in the space, carrying energy. Electromagnetic waves are NOT mechanical waves: in fact, they do not a medium to propagate, as they can also travel through a vacuum.

Electromagnetic waves are also transverse waves, which means that the oscillations of the electric and magnetic fields occur in a direction perpendicular to the direction of propagation of the wave itself.

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