A car whose tire have radii 50cm travels at 20km/h. What is the angular velocity of the tires?

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) ! : )

Acid rain is caused by human activity. select the best answer from the choices provided t f

Based on the image below what would an observer on the nighttime side of earth observe?