Two forces lying in the x-y plane are defined by their magnitudes and direction angles, as shown in the figure below. Force ₁ has a magnitude F₁ = 460 N, an angle 0₁ = 164°, and acts at point A = (465,0) mm. Force F2 has a magnitude F₂ = 550 N, an F2 angle 02 = 20°, and acts at point B = (0, 135) mm. Determine the total moment about point O due to these two forces. Remember to follow the standard sign convention for clockwise (-) and counter-clockwise (+) moments. y B O 0₂ F₂ F₁ A 0₁ X

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.