Be sure to answer all parts. a concentration cell consists of two sn/sn2+ half-cells. the electrolyte in compartment a is 0.19 m sn(no3)2. the electrolyte in b is 0.87 m sn(no3)2. which half-cell houses the cathode? what is the voltage of the cell? cathode: half-cell a half-cell b voltage of cell:

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

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 !

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?