There is a +5.0-μc charge at three corners of a square having sides 70 mm long. what is the magnitude of the net electrostatic force on +6.0 μc placed at the center of the square? (k = 1/4πε0 = 9.0 × 109 n ∙ m2/c2)

Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life

You can decrease the resistance of a length of wire by

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates