Consider a glass window (k = 0.7 W/m K) with cross-sectional area of 2 m2 and thickness of 1 cm exposed to the air inside the room at 20oC on one side and cold outside air on the outside. If the convection coefficient, h, for the inside air is 10 W/m2 K, h for the outside air is 20 W/m2 K, and the inside window surface temperature is 15oC, find the heat loss through the window an

What precautions should you take to prevent injuries when dealing with heavy loads?

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 thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length