1. A train is moving north at 5 m/s on a straight track. The engine is causing it to accelerate northward at 2 m/s^2. How far will it go before it is moving at 20 m/s?
A) 83
B) 43
C) 39
D) 94
E) 20

b

explanation:

what type of charge does it have? negative

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.