The photosphere refers to the Sun's:
core
atmosphere
surface
magnetic field

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?

Am i correct on these two physics questions?

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth