Which of the following is true about the atoms and molecules in the world? O A small, finite variety of atoms make up a nearly infinite variety of molecules infinite
O A nearly infinite variety of atoms make up a small, finite variety of molecules
O A small, finite variety of atoms make up a small, finite variety of molecules
O A nearly infinite variety of atoms make up a nearly infinite variety of molecules

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )