5. Air enters a compressor operating at steady state with a pressure of 14.7 psia, a temperature of 80 F, and a volumetric flow rate of 18 ft3/s. The air exits the compressor at a pressure of 90 psia. Heat transfer from the compressor to its surrounds occurs at a rate of 9.7 BTU/hr per pound of air flowing. The compressor power input is 90 hp. Neglecting kinetic and potential energy effects, and modeling the air as an ideal gas, determine the exit temperature (F).

b.

explanation:

10.0

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

answera compound;