Find the potential, due to an electric dipole, at a point P which is a distance r from the centre C of the dipole and the line CP makes an angle of φ with the dipole-axis. Assume . What if φ=90°?

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Note: the following questions are unrelated to the balmer series or the martian. refer to your course notes. a sun-sized star will spend most of its lifetime as a: white dwarf b. red giant c. protostar d. main-sequence star

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?