You need to make 10.0 L of 2.0 M KNO3. What molarity would the potassium nitrate solution need to be if you were to use only 5.0 L of it? O 4.8 M
O 1.0M
O 4.0M
O 25 M

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here