9. Think & Calculate A train on a straight track goes in the positive direction for 5.9 km, and then backs up for 3.8 km. (a) Is the distance covered by the train greater than, less than or equal to its displacement? Explain. (b) What is the distance covered by the train? (c) What is the train's displacement?

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

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 !

What is the angular momentum of the bar about the axle?