a 2 kg block is pulled across a flat, frictionless floor with a 4.17 N force directed 40° above horizontal. what is the normal force acting on the block

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2