NEED ANSWER ASAP A 75 kg skydiver is falling at a steady speed. Gravity is exerting 740 N of force on him. How many newtons of air resistance force is acting on his body?

The air resistance points up with magnitude 100 N

So the sum of the forces in the y-direction = 735.75 - 100 = 635.75

The crosswind in the x-direction = 60 N

The resultant force has magnitude sqrt((635.75)^2+(60)^2) = 638.6 N

The angle of the resultant force = arctan(60/635.75) = 5.4 deg. from vertical

Explanation:

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.