What is the amount of NH4Cl that will dissolve at 20C for form a saturated solution? 10 20
30
40

After an atomic bomb has been dropped, the damage continues to get worse. why is this?

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?