A motorcycle of mass m starting from resst can attain a speed v after work w is performed by its engine. If the engine could perform work 4w then the final speed would be?

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Why should seat belts not be mandatory quick plz

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 !