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What is the angle between a wire carrying 8.30 A and the 1.20 T field it is in, if 50.0 cm of the wire experiences a magnetic force of 2.80 N?
What is the force on the wire if it is rotated to make a 90° angle with the field?
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A projectile is launched at an angle of 12.0° above the horizontal. What is its initial speed if it hits a target that is located a horizontal distance of 175 m from the launch point and 11.0 m above the launch level?
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