Which of the following greatly improves the angular resolution of radio maps?
A) Schmidt corrector plates
B) more sensitive spectrometers
C) switching from film to CCD imaging
D) use of interferometers
E) chilling the infrared detectors
D
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An electron and a proton are each released from rest in the same uniform electric field. The electron moves a distance delectron and the proton moves a distance dproton as each particle's kinetic energy increases by 1.6 eV. How do delectron and dproton compare?
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