2)
which car is accelerating?
a) a car that is unmoving
b) a car that rounds a curve at a constant speed
c) a car that travels in straight line at a constant speed
d) a car that is set to a constant speed of 60 miles per hour

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) ! : )