[10 points] (14) Two circular arcs have radii a = 10.5 cm and b = 6.7 cm, subtend an angle = 74o, carry a current I = 0.411 A, and share the same center of curvature P.

What is the magnitude of the net magnetic field (in microTesla) at point P?

a. 0.287

b. 45.394

c. 0.792

d. 0.034

e. 58.628

What is the direction of the net magnetic field at point P?

a. To the left

b. Into the page

c. Out of the page

d. Up parallel to a

e. To the right

The magnitude of the net magnetic field (in microTesla) at point P is 0.287.

The direction of the net magnetic field at point P is pointing into the page.

Explanation: Please see the attachments below

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.