The perpendicular distance between the applied force and the center of rotation is called the The perpendicular distance between the applied force and the center of rotation is called the torque. A. ability to cause B. an object to rotate. C. moment arm. D. cross-product.

option c)

Explanation: The moment formulae is given by

Moment = force × perpendicular distance.

Moment is zero when the applied force and distance away from the force to a turning point (center of rotation) are not perpendicular.

The perpendicular distance between the applied force and the center of rotation is the main reason for moment to be available in any system, hence that distance is called a moment arm

c

explanation:

i believe the answer is c and this is only worth 10 points you might wanna change it

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: