Please help
Design Solution #1: Gravity Filter
Strengths for Society and Environment: Holds 1...
Engineering, 04.11.2020 01:00, joe805
Please help
Design Solution #1: Gravity Filter
Strengths for Society and Environment: Holds 13 gallons of water, lasts 3-5 years, does not require electricity, filters out bacteria
Weaknesses for Society and Environment: Heavy and replacement parts cost $25-$100, Costs $390.95
Design Solution #2: Lifestraw
Strengths for Society and Environment: You can drink from something as small as a puddle, filters out bacteria (99.99% of waterborne bacteria)
Weaknesses for Society and Environment: Only lasts 250-330 days, might affect an insect’s environment
Design Solution #1: Gravity Filter
*Does it meet the criteria? Explain:
Does it meet the constraints? Explain: Yes, because research shows
that the lifestraw filters out 99.99% of bacteria.
*Design Solution #2 Is more useful than Design Solution #1 Because...
*The purification method that will help the most people in the community is...
because...
Answers: 3
Engineering, 04.07.2019 18:10, meganwintergirl
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
Engineering, 04.07.2019 18:10, DestyHilBan1183
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:10, dval1146
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
Engineering, 04.07.2019 18:20, RiverH246
Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point. the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
History, 29.01.2020 23:54
Physics, 29.01.2020 23:54
English, 29.01.2020 23:54
Biology, 29.01.2020 23:54
History, 29.01.2020 23:54