You can purchase a 15-watt compact fluorescent lamp for $1 that is rated to last 10,000 hours. this lamp provides the same light output as a 75-watt incandescent lightbulb that costs $0.50 and lasts 1000 hours. based on an electric energy cost of $0.30/kwh, calculate the money saved over the life of the fluorescent lamp by using it instead of the conventional lightbulb. include the cost of the lightbulbs.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false