Pretend you are a civil engineer who is working in a developing country that does not have the funds for electrical appliances.  
1.Think of all the things that people do ev ery day. Think of at least 10 examples of things that people do every day or every other day.
2.Make a list of all the appliances  that would be used to do the things you listed . Ex, if you listed cooking in step  1, in step 2 you would list a stov e. List at least 5 appliances.
3.Think of ways you can replace these five appliances with solar energy. Partial replacement is okay too.
4.Submit your lists as one file with headings here.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.