2.0 cm of rain falls in 10 minutes. Assuming that the fall is steady and
uniform and the velocity of the rain-drops on striking the ground is 20
ms-1, Calculate the pressure on the ground due to the shower. (Assume
the velocity of water to be zero after impact).

positive reinforcement? ?

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

f=ma newton

f=100x2.5=250n

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge