Two small boats are `10m` apart on a lake. Each pops up and down with a period of 4.0 seconds due to wave motion on the surface of water. When one boat is at its highest point, the other boat is its lowest point. Both boats are always within a single cycle of the waves. The speed of the waves is:

Two canoes are 10 m apart on a lake. Each bobs up and down with a period of 4.0 s. when one canoe is at its highest point, the other canoe is at its lowest point. Both canoes are always within a single cycle of the waves determine the speed of the wave.

Two canoes are 10 m apart on a lake. Each bobs up and down with a period of 4.0 s. when one canoe is at its highest point, the other canoe is at its lowest point. Both canoes are always within a single cycle of the waves determine the speed of the wave.

Two ghats are located on a river bank and are 21 km apart. Leaving one of the ghats for the other, a motorboat returns to the first ghat in 270 minutes, spending 40 minutes of that time in taking the passengers at the second ghat. Find the speed of the boat in still water if the speed of the river flow is 2.5 km/h?

A stationary source generates 5.0 Hz water waves whose speed is 2.0 m/s. A boat is approaching the source at 10 m/s. The frequency of these waves, as observed by a person in the boat, is

Twp boats are moving along perpendicular paths on a still take at right. One boat moves with a speed of 3 ms^(-1) and the other boat moves with a speed of 4 ms^(-1) in the directions such that they collide after some time. At t=0, the boats are 300 m apart. Two boats will collide after time ______.

Twp boats are moving along perpendicular paths on a still take at right. One boat moves with a speed of 3 ms^(-1) and the other boat moves with a speed of 4 ms^(-1) in the directions such that they collide after some time. At t=0, the boats are 300 m apart. Two boats will collide after time ______.