PHL 302 Lecture : Arguments for Existence of God TA Session 10:31:13.pdf

a runner is going 25m/s around a curved section of track that has radius of 125m. What iss th runner's acceleration?

Find the time t_H it takes the projectile to reach its maximum height H. Express t_H in terms of v₀, θ, and g (the magnitude of the acceleration due to gravity).

Three engines operate between reservoirs separated in temperature by 300k.  The reservoir temperatures are as follows.

Engine A: Th =1000k, Tc =700k

Engine B: Th = 800k, Tc = 500k

Engine C: Th = 600k, Tc = 300k

Rank the engine in order of their theoretically possible efficiency, from highest to lowest

a. A,B,C.

b. B,C,A.

c. C,B,A.

d. C,A,B.