Initially, the magnetic domains within the nail were oriented in various directions before coming into contact with the bar magnet. Upon Taylor touching the nail to the bar magnet, the magnetic fields of those domains became aligned, thus transforming the nail into a temporary magnet.
The maximum speed around this curve before a toolbox made of steel slips off the truck bed is: 14.832 m/s
Further explanation
The centripetal force acts on objects in circular motion, directed towards the circle's center.

F = centripetal force, N
m = mass, Kg
v = linear velocity, m / s
r = radius, m
The velocity directed toward the center of the circle is referred to as linear velocity.
It can be represented as:

r = radius of the circle
f = rotations per second (RPS)
Pickup trucks negotiating a curve are influenced by centripetal forces. To prevent the steel toolbox from slipping off the bed of the truck, the centripetal force acting on it must equal its weight. Should the centripetal force surpass the toolbox's weight, it will fall off.
centripetal force = weight

Thus, the maximum velocity to keep the toolbox secure is:

For a curve with a radius of 22 m, it follows that:

Learn more
The average velocity
Resultant velocity
Velocity position
12 degrees = (π / 180) x 12 radians =.2093 radians; the position of the third bright fringe is determined as 3λ D/d, where λ represents the light wavelength, D is the distance to the screen, and d is the slit separation. Thus, the equation results in 3λ D/d = 30 x 10⁻², and from the angular separation, we deduce 3λ/d =.2093. Substituting the two equations, we find.2093 D = 30 x 10⁻², leading to D = 30 x 10⁻² /.2093 = 1.43 m.