A. Bronze is a mixture because it is composed of two different materials and homogenous because it has the same composition throughout.
Stressing an equilibrium simply means that the physical properties in which already exists are balanced. Stress can be applied by either changing the pressure or the volume or temperature.
The first thing you should know is that the friction force is equal to the coefficient of friction due to normal force.
Therefore, clearing the normal force we have:
The friction is 565N.
(565 / 0.8) = 706.25N. weight.
Newtons Law of motion
HOPE IT HELPS:)
