a particle at T1 = -2.0 s is at X1 = 3.4 cm and at T2 = 4.5 s is at X2 = 8.5 cm. what is the average velocity, can you calculate its average speed from these data?

The slope of a velocity time graph over any interval of time gives the during that interval

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) ! : )

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2 . how much is the spring compressed x from its natural length?