HELP! A boat heads directly north at 15m/s across a river to 300m wide flowing at 6m/s west. a) what is the velocity of the boat relative to the river bank? b)how long will it take to cross the river? **Please explain both (a) and (b).​

well clustered together.

points close on a scatter diagram

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.