Which of the following is the best example of a proper hypothesis? a. water will flow faster through tightly packed soil than through loosely packed soil. b. i think there is no effect on hearing if you listen to loud music for only three hours a day. c. if different types of leaves are exposed to low temperatures, then they will change colors. d. grapes taste better than apples because grapes are sweeter.

C

Explanation:

C is the right answer because it does make sense and its true that if you expose different types of leaves at low temperatures, they WILL change colors :)

PLEASE DO MARK ME AS BRAINLIEST IF MY ANSWER IS HELPFUL ;)

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.