The sun generates both mechanical and electromagnetic waves. Which statement about those waves is true?
A. The mechanical waves reach Earth, while the electromagnetic do not.
B. The electromagnetic waves reach earth, while the mechanical waves do not.
C. Both the mechanical waves and the electromagnetic waves reach earth.
D. Neither the mechanical waves nor the electromagnetic waves reach earth

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) ! : )