Engineering, 19.05.2021 18:30 leximae2186

One piece is cylindrical with a hemispherical hat (the flat face of hemisphere rests flush on top of the flat face of the cylinder). The diameter of the cylinder and hemisphere are identical at 2r inches, and the height of the cylinder is 2r inches. The second piece is a cube with a mountedcylinderon it such that one of the flat facesof the cylinder is resting on the top face of the cube. The four edges of the cube are tangential to the circle of the cylinder resting on it. The side of a cube has a length of 2r inches and the height of the cylinder is r inches. The third piece is a cube with a mounted hemisphere on it such that the flat face of the hemisphere is resting on the top face of the cube. The four edges of the cube are tangential to thecircle of the hemisphere resting on it. The side of a cube has a length of 2r inches and the radius of the sphere is r inches. Required:
Which piece will solidify the fastest and which piece the slowest?

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 19:10

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj

Answers: 2

Answer

Engineering, 06.07.2019 02:30

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?

Answers: 2

Answer

Engineering, 06.07.2019 04:10

An inventor claims to have developed a reversed heat engine (ie. a heat pump) which is able to deliver 10 kj heat into the room at 20°c from outside ambient temperature of -10°c by consuming only 2 kj electricity in winter. this claim is a)-impossible b)-possible only if the heat pump is ideal c)-practically possible d)-unable to be assessed as it depends on the working fluid used in the heat pump.

Answers: 2

Answer

Engineering, 06.07.2019 04:20

Steam enters a turbine at steady state at 2 mpa, 360°c with a velocity of 100 m/s. saturated vapor exits at 0.1 mpa and a velocity of 50 m/s. the elevation of the inlet is 3 m higher than at the exit. the mass flow rate of the steam is 15 kg/s, and the power developed is 7 mw. let g 9.81 m/s^2. determine: a)-the area at the inlet, in m^2 b)-the rate of heat transfer between the turbine and surroundings, in kw c)-draw a p-v diagram for this process.

Answers: 1

Answer

You know the right answer?

One piece is cylindrical with a hemispherical hat (the flat face of hemisphere rests flush on top of...

Questions