Because the block is not moving, the sum of the x components of the forces acting on the block must be zero. find an expression for the sum of the x components of the forces acting on the block, using coordinate system b. express your answer in terms of some or all of the variables fn, ff, fw, and θ.

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f