Fig. 16.1 shows the heating system of a hot water shower. Cold water at 15 °C flows in at the rate of 0.0036 m3 minute. Hot water flows out at the samerate.
Calculate the mass of water that passes the heating element in one minute.
The density of water is 1000 kg / m3

Na food processing facility, a spherical container of inner radius r1 5 40 cm, outer radius r2 5 41 cm, and ther- mal conductivity k 5 1.5 w/m · k is used to store hot water and to keep it at 100°c at all times. to accomplish this, the outer surface of the container is wrapped with a 800-w electric strip heater and then insulated. the temperature of the inner surface of the container is observed to be nearly 120°c at all times. as- suming 10 percent of the heat generated in the heater is lost through the insulation, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the container, (b) obtain a relation for the variation of temperature in the container material by solving the differential equation, and (c) evaluate the outer surface tempera- ture of the container. also determine how much water at 100°c this tank can supply steadily if the cold water enters at 20°c.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

What is similar between metals and suspensions