Anew blimp will move at 15 ft/s in 40°f air. a 1: 12 scale model is used in a water tunnel where a drag force of 100 lbs was measured. what is the appropriate water velocity to use in the water tunnel (in ft/s)? what is the expected drag force on the actual blimp (in lbs)? what power will be required to propel the actual blimp through the air (in hp)?

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.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.