Un lazo (cuerda) de 200 gramos está sostenido como se muestra en la figura mencionada, tiene una longitud de 45 cm y está bajo una tension de 340 newton. Calcule la densidad lineal y la cuerda y la rapidez de una onda transversal (pulso).

please tell in English

Explanation:

Please explain in English.. I have not understood what you have written.

So sorry I cannot help you

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: