Who was christa mcauliffe and what happened this year to make her dream come true?

Agalvanometer has an internal resistance of 100 ω and deflects full-scale at 2.00 ma. what size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 ma, and how should this resistor be connected to the galvanometer?

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Aballet student who learns with the of his instructor is demonstrating learning.