The speed of the wave depends on the properties of the material through which it travels. When light waves travel through air and then enter water, the waves slow
down and change direction. This is called:

t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanatio

i would say the answer is food.

hope this !

false

explanation:

boats, things on boats luggage are way more heavy then water.

ice to water 1 water to vapour 2 latent heat