Answer:
In longitudinal waves, particles travel in the direction parallel to that of the wave motion where as in transverse waves, particles move perpendicular to the direction of the wave motion and in surface waves, particles in the medium move in a circular motion.A good example of longitudinal waves is sound waves. Vibrating a string on the ground can serve as an example of transverse wave.For surface waves, the ocean waves travelling on the surface can illustrate the cicular movement of particles in the water.
Velocity and a speed is the reason for the weight of it as well i actually have no idea
What is the name of the upward force that enables a bird to fly?
A. Lift
Answer:
3503.72 seconds
819.96 seconds
Explanation:
=Velocity of river = 0.566 m/s
=Velocity of student = 1.17 m/s
Distance to travel = 1.57 km = 1570 m
So,
Time = Distance / Speed
Time taken by the student to complete the trip is 3503.72 seconds
In still water
The difference in time between moving water and still water is 3503.72-2683.76 = 819.96 seconds
Yes, ratio can be expressed in percentage.
