Please help! A straight wire is placed in the magnetic field of a U-shaped magnet as shown in fig. 1 (attached) The length of the wire in the field is 35 mm. When a current of 1.8 Amp is in the wire, a force of 0.024 N acts on the wire due to the field. Calculate the magnetic flux density of the field. Thank you for helping (if you can!)

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward