A600-g block is dropped onto a relaxed vertical spring that has a spring constant k =190.0 n/m. the block becomes attached to the spring and compresses the spring 37.5 cm before momentarily stopping. while the spring is being compressed, what work is done on the block by the gravitational force on it?

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) ! : )