Answer Happy

I got the first one, please show work for the rest
✓2 3 4 5 A point charge q2 = -2.1 μC is fixed at the origin of a co-ordinate system as shown. Another point charge q₁ = 4.2 µC is is initially located at point P, a distance d₁ = 6.2 cm from the origin along the x-axis 2) a y (93) (94) 1) What is APE, the change in potenial energy of charge q₁ when it is moved from point P to point R, located a distance d₂ = 2.5 cm from the origin along the x-axis as shown? -1.89 R J Submit (91) P (92) d₂ J Submit R d₁ (9₁) P The charge q₂ is now replaced by two charges 93 and 94 which each have a magnitude of -1.05 μC, half of that of 92. The charges are located a distance a = 1.5 cm from the origin along the y-axis as shown. What is APE, the change in potential energy now if charge q₁ is moved from point P to point R? X
3) a 5) (93) a (94) What is the potential energy of the system composed of the three charges 9₁, 93, and 44, when q₁ is at point R? Define the potential energy to be zero at infinity. y (93) d₂ (95) R (91) d₁ R (9₁) d₁ Submit d₂ R (9₂) P The charge 94 is now replaced by charge 95 which has the same magnitude, but opposite sign from 94 (i.e., 95 = 1.05 HC). What is the new value for the potential energy of the system? X Submit X J Submit dz (9₁) P d₁ Charges 93 and 95 are now replaced by two charges, q₂ and 46, having equal magnitude and sign (-2.1μC). Charge q2 is located at the origin and charge q6 is located a distance d = d₁ + d₂ = 8.7cm from the origin as shown. What is APE, the change in potential energy now if charge q₁ is moved from point P to point R? (96) + X