PLS HELP The graph describes how the solubilities of two salts change as water temperature changes. Which two statements are true, based on the relationships shown in the graph?
Α. Potassium nitrate’s solubility increases much more than sodium chloride’s as water temperature increases.
B. Sodium chloride’s solubility is greater in cold water than in hot water.
C. More sodium chloride than potassium nitrate can dissolve in cold water.
D. Less potassium nitrate than sodium chloride dissolves in hot water.

An automobile of mass 2000 kg moving at 30 m/s is braked suddenly with a constant braking force of 10000 n. how far does the car travel before stopping?

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds