The forces f 1, f 2, f n acting at the same point p are said to be in equilibrium if the resultant force is zero, that is, if f 1 + f 2 + + f n = 0.
f 1 = i + j, f 2 = i – j, f 3 = 9 i + 2 j
find the additional force required for the forces to be in equilibrium p.

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point

Juliette sets the initial velocity to +10 m/s, the acceleration to zero, and clicks “start.” how can shakina describe the subsequent motion of the car juliette controls?

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.