The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. a certain river normally flows at a speed of 1 meter per second. what must its speed be in order to transport the particles that are twice as massive as usual?

1.122 m/s

Explanation:

So usually a river with a speed of 1 meters per second can transport particle that weighs:

If the particle is twice as massive as usual, then its weights would be 1 * 2 = 2kg

This means the river must be flowing at a speed of

you would expect a sound wave to speed up. - b)

newton's first law of motion