Let r= 55 = 5i. Which is greater {in magnitude}: the torque about ID 1.I.rhen a force F = 5i 3k is applied at P or the torque about U 1.I.rhen a force F = 3i 4j is applied at P? |:l produces the greater torque. \f1 An electron {q = 1.6 x10 _ S C} enters a constant 2T magnetic eld at an angle of 30 to the eld with a speed at 3x105 m Is. Find the magnitude of the force on the electrcn. The magnitude of the force is |:|x'ii]|:| N. [Use scientic notation. Reund to [we decimal places as needed] 1 An electron {q = 1.6 x10 _ S C} enters a constant 2T magnetic eld at an angle of 30 to the eld with a speed at 3x105 m Is. Find the magnitude of the force on the electrcn. The magnitude of the force is |:|x'ii]|:| N. [Use scientic notation. Reund to [we decimal places as needed] Ahorizontall'f outstretched arm supports a weight of 24 lb in a band [see gure}. It the distance from the shoulder to the elbow is '1 it and the distance from the elbow to the hand is 1 it, nd the magnitude and describe the direction of the torque about {a} the shoulder and [b] the elbow. {The units of torque in this case 1 1 are itlb.) F E) [a} The magnitude of the torque about the shoulder is D ft-lb. [Simplify your answer}