2. A 12kg slab is being dragged across a dirt path with an applied force of 300n, and has a net acceleration of 5m/s^2. What is the coefficient of kinetic friction between the slab and the ground?.

Which object is most likely represented by a dot?

Idon’t quite understand this problem

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e