3. A dog walks 12 meters to the east and then 16 meters back to the west. For this motion, what is the distance moved?
What is the magnitude and direction of the displacemeni?

at right angles to each other

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.