1- An electric train in Japan reaches a speed of 50 m / s in 4 seconds. If the train experiences an MRUA ... a) Calculate the acceleration with which the train travels
b) If the constant acceleration is maintained for two more seconds, how many meters does the train travel in total during the MRUA?

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !