1. Delta, is formed by constructive erosion.
Answer:
I think u have to do 580N times 40KG
Option (D) is the correct one.
In order to increase the amount of work done, we need to increase the force applied to the object.
Answer:
Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. The wavelength decreases as the light enters the medium and the light wave changes direction.
Explanation:
