Engineering, 28.10.2019 00:43 zazy15
Idk how to do this assignment and i was not given any good enough context., srry bout the word wall.
measuring mass is difficult without a scale. but you can make a simple balance using a clothes hanger to estimate mass (google how to make one). then balance know mass objects (ex. nickles) with selected unknown objects. for example to determine the mass of a wrist watch, you can use several money nickels because each nickel has a mass of exactly 5 grams. for larger items you can use can food because they have labeled masses on the outside. we realize your answers will be estimates and not exact by try your best to estimate accurately.
Answers: 3
Engineering, 03.07.2019 14:10
Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.
Answers: 1
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
Engineering, 03.07.2019 15:10
If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.
Answers: 1
Engineering, 04.07.2019 18:10
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Idk how to do this assignment and i was not given any good enough context., srry bout the word wall....
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