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    Water in an open container immersed in a heat bath at BP

    I realize this is probably pretty basic, but it has me stumped: An open test tube containing water is immersed in a heat bath of boiling water. The water in the test tube does not boil. Why? Would this be because the water in the test tube is at a temperature where it two phases (liquid and...
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    Retarded potentials

    Homework Statement I'm working through the 3rd edition of Griffiths' Electrodynamics book and have gotten stuck on some details in example 10.2, which describes an infinite straight wire carrying a current I0 for t>0. The figure included with the example illustrates a wire in the vertical...