![subject](/tpl/images/cats/User.png)
Engineering, 30.08.2019 17:30 brown62
Abar 2 m long and 25 mm in diameter is subjected to a tensile load of 2 x 10 n/mm^2, calculate the strain energy and modulus of resilience.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 19:10
An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling
Answers: 2
You know the right answer?
Abar 2 m long and 25 mm in diameter is subjected to a tensile load of 2 x 10 n/mm^2, calculate the s...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 03.04.2020 01:42
![question](/tpl/images/cats/en.png)
English, 03.04.2020 01:42
![question](/tpl/images/cats/geografiya.png)
Geography, 03.04.2020 01:42
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 03.04.2020 01:42
![question](/tpl/images/cats/himiya.png)
Chemistry, 03.04.2020 01:42
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 03.04.2020 01:42
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.04.2020 01:42
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 03.04.2020 01:42
![question](/tpl/images/cats/istoriya.png)
History, 03.04.2020 01:42
![question](/tpl/images/cats/istoriya.png)