A small toy car rolls down the edge of a horizontal table. The table edge is 50 cm from a wall. The speed of the car is 3.2 m/s as it
reaches the edge of the table.
How far down on wall three is the car?

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in 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.