A student built a simple fan using an electromagmet, a permanent magnet, and a fan blade. When she connects the electromagnet to one battery, the fan blade turns. What would most likely happen if she connected it to two batteries? a. The fan blade would go faster b. the fan blade would go slower c. the fan blade wouldn't turn at all d. the fan blade would turn in oppposite direction

i think the answer is a, hope this : )

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards