a hot air balloon lifts 50 m vertically into the air and then comes back down what are the displacement and distance of the balloon's flight?

multiply 2kg by latent heat of vap

it's a b and

the right answer is 0.3 meters per second

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.