Aspring balance attempts to drag an object across a table, but the object does not move because of the force of friction acting on the body in an equal and opposite direction. when the forces acting upon an object are equal and opposite the object is said to be in a state of equilibrium. what are these forces called?
a) even forces
b) balanced forces
c) harmonized forces
d) unbalanced forces

Aray diagram for a refracted light day is shown. what does the dashed line represent

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.