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A brass (nonmagnetic) block A and a steel magnet B are in equilibrium in a brass tube under the magnetic repelling force of another steel magnet C located at a distance x=.004 m from B. The force is inversely proportional to the square of the distance between B and C. If block A is suddenly removed, the acceleration of block B is a = -9.81 + (k/(x^2)) where a and x are expressed in m/s^2 and meters respectively, and k = 4 e -4 m^3/s^2. Determine the max velocity and acceleration of B Please leave answers in m or mm.
Calculate the maximum bending stress at mid-span, and, for the same section, locate the neutral axis. Neglect the weight of the beam
Vertical plane due to the action of the external moment and determine the external moment or force.
determine the work and heat transfer, each in kJ. sketch the process on p-v and T-s coordinates. Associate the work and heat transfer with areas on these diagrams.
if the 1500-lb boom ab the 200-lb cage bcd and the 175-lb man have centers of gravity located at points g1 g2 and g3
natural gas is primarily composed of methane ch4 while coal can be modeled as eicosane c20h42. methane has a heat of
calculate the kg mix- ture from the mixer, kg water evaporated, and kg jam produced.
a gasoline engine receives air at 10 0c 100 kpa having compression ratio of 91 bynbspvolume. the heat addition by
Starting from the energy equation and using the one-dimensional heat conduction derivation as an example
A cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.
If the minimum attractive rate of return is20% per year, determine the one machine that should be selected on the basis of a rate of return analysis.
(a) Sketch the cycle on a p V diagram. (b) Calculate the net work for the cycle, in kJ. (c) Calculate the heat transfer for process 2 3, in kJ. (d) Calculate the heat transfer for process 3 1, in kJ. (e) Is this a power cycle or a refrigeration cy..
the molar heat capacity of liquid iron exceeds that of iron vapor by 2.5222calkthe molar heat of evaporation of liquid
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