A 1000000g spacecraft is traveling through space with a speed of 120 m/s relative to Earth. A thruster fires for 2 minutes, exerting a continues forces of 2,500 N on the spacecraft in a direction opposite of the spacecraft's motion. Calculate the initial momentum and the final momentum.

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) ! : )