Si nanowires were synthesized via vapor-liquid-solid growth method using gold particles. In your EDX spectrum, you observe a significant amount of oxygen signals, which you are certain are coming from the Si nanowires. What do you think happened to the Si nanowires?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

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 !