In a movie projector in your local cineplex, the frames of film go into the projector

a. head first or upside down.
b. feet first or right side up.

a skateboard rolling across the street - apex

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures

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.