A spherical shell has a radius R and a mass M. (a) Write expressions for the force
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A spherical shell has a radius R and a mass M.
(a) Write expressions for the force exerted by the shell on a point mass m0 when m0 is outside the shell and when it is inside the shell.
(b) What is the potential-energy function U(r) for this system when the mass m0 is at a distance r (r ≥ R) if U = 0 at r = ∞? Evaluate this function at r = R.
(c) Using the general relation for dU = -F ∙ dr = -Frdr, show that U is constant everywhere inside the shell.
(d) Using the fact that U is continuous everywhere, including at r = R, find the value of the constant U inside the shell.
(e) Sketch U(r) versus r for all possible values of r.
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Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
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