Answer to Question #51633 in Chemistry for samuel

1. What are the dimensions of the constant k in Coulomb’s law of electrostatics?
a.ML2T−4 T−2 A−1
b. ML2T3A−2
c. M −2 L3T2A−1
d. ML3T−4 A−2

2 Two charges Q 1 =500μC and Q 2 =100μC are located on the XY plane at the positions r 1 =3j ⃗ m and r 2 =4i ⃗ m. Find the force exerted on the Q 2

a. 14.4i ⃗ +10.8j ⃗ N

b. 14.4i ⃗ –10.8j ⃗ N

c. 10.8i ⃗ –14.4j ⃗ N

d. 10.8i ⃗ +14.4j ⃗ N