Engineering, 03.02.2020 23:45 lovenot1977
Based on experimental observations, the acceleration of a particle is defined by the relationa = -( 0.1 + sin(x/b) ),where a and x are expressed in m/s^2 and meters, respectively. knowing that b = 0.8 m and that v = 1 m/s when x = 0, determine (a) the velocity of the particle when x = -1 m, (b) the position where the velocity is maximum, (c) the maximum velocity.
Answers: 1
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
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Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
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Engineering, 04.07.2019 18:20
What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.
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Engineering, 04.07.2019 18:20
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
Based on experimental observations, the acceleration of a particle is defined by the relationa = -(...
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