A block attached to a spring is oscillating between point X (fully compressed) and point Y (fully stretched). The surface is frictionless. As the block moves from point X to O (spring relaxed), the spring does work W on the block. How much work does the spring do on the block as it moves from O to Y

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) ! : )

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Does heating a metal wire increase or decrease its electrical resistance? why?