Ayuda en cultura fisica ¿Qué son los movimientos rítmicos?
¿Qué es la coordinación corporal?
¿Qué es la habilidad corporal?
¿Qué entiende por ejercicios de equilibrio?
¿Qué tipo de género musical se utiliza para los movimientos rítmicos?
¿Qué beneficio brindan los movimientos rítmicos en las personas?

a.) is the correct answer.

explanation:

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:

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered