Which was an idea used to promote the theory of plate tectonics

Determine the maximum r-value of the polar equation r =3+3 cos 0

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

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) ! : )