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What is the modulus of elasticity E of the highstrength material used for a 3 mm diameter wire if the wire stretches 29 mm when a 12 m length of it is subjected to a tensile load of 4 kN?
the melting temperatures for various materials are listed in the inside cover of callister. some representative values
you have a kiln where theinterior is a cube with an edge length of 30 cm. the walls of the kiln are made of an
the initially stationary uniform disk of mass m1 and radius b is allowed to drop onto the moving belt from a very small
Explain the principle of operation of an AB encoder and how this is used to read an optical encoder. Draw a diagram of the essential features of an optical encoder.
Describe the four incorrect assumptions concerning robot - arm movement that are most frequently responsible for impact accidents.
Aluminum fins of triangular profile are attached to a plane wall whose surface temperature is 250°C. The fin base thickness is 2 mm, and its length is 6 mm. The system is in ambient air at a temperature of 20°C, and the surface convection coeffici..
Calculate energy savings, implementation costs and simple payback. You should be able to find some tips and calculations from the text book.
What is the heat flux at the plate surface - what is the surface heat flux for the original plates? Assume the temperature and ow rate of the gas to be unchanged and radiation effects to be negligible.
Determine the temperature of the water at this pressure.
Class 20 and class 60 gray cast irons have tensile strengths of about 20 and 60 ksi respectively. Assuming that the fractures start from graphite ?akes and that the ?akes act as preexisting cracks, use the concepts of Grif?th analysis to predict t..
A model of an airplane is to be tested at 20°C in a wind tunnel. The model is built to 1/12th scale. In order to match both the Mach number and the Reynolds number of the plane, the wind tunnel is pressurized. To what pressure (in atm) should the air..
milk is pasteurized if it is heated to 63c for 30 min but if it is heated to 74c it only needs 15 seconds for the same
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