karen is running forward at a speed of 9m/s. She tosses her sweaty headband backwards at a speed of 20m/s. The speed of the headband ,to the nearest whole number relative

the ima (higher than 1m) will be greater than the ima with the height of 1m.

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.