Asteel pipe having a length of 1m, and outside diameter of .2m, and a wall thickness of 10mm, is subjected to an axial compression of 200kn. assuming the modulus of elasticity of 200 gpa and a poisson's ratio of .3, find the following. a) the shortening of the pipe b) the increase in the outside diameter c) the increase in wall thickness

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What is the speed vfinal of the electron when it is 10.0 cm from charge 1?

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)