The odometer of a car reads 2000km at the start of at trip and 2400km at the end of the trip. if the trip took 8h. calculate tge average speed of the car in km/h and m/s.

electromagnetic waves travel through space with vacuums. give me brainliest if right.

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

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.