Point charges Q1 = 3.5 μC and Q2 = 9.0 μC are located at r→1 = (5.0i^ − 2.0j^ + 6.0 k^) m and r→2 = (8.0i^ + 4.0j^ − 9.0k^) m. What is the force (in N) of Q2 on Q1? (Express your answer in vector form.) F→21 = ( ) N
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Point charges and are located at and . What is the force (in N ) of on ? (Express your answer in vector form.)