A clothoid loop in a roller coaster has the same height as a circular loop, but half the radius at the top. A rider at the top of either loop typically experiences a net force of 1.5mg. What is the ratio of the speed at the top of the circular loop to the speed at the top of the clothoid loop?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories