Kinetic and Static Friction Practice Test

A $2.0,\text{kg}$ block rests on a horizontal table. A student pulls it with a $6,\text{N}$ horizontal force, and the block remains at rest. The friction force is static, and the only other forces are weight and the normal force. What is the magnitude of the friction force on the block?

A block on a rough horizontal surface is pushed to the right with $4,\text{N}$ and remains at rest. The friction is static; other forces are weight and normal force. Which statement about the friction magnitude is necessarily true?