Para mover un cuerpo, se le ata una cuerda y tres personas tiran de ella, ejerciendo fuerza de 60 Kgf, 70 Kgf y 75 Kgf. ¿Cuál es la resultante del sistema? (resuelve analítica y gráficamente). 6. Sobre una barra de 4,5 m de longitud, se ejercen fuerzas paralelas de igual sentido, si la resultante del sistema es hacia arriba y de 450 N y la fuerza mayor es de 250 N ¿Cuál es la intensidad de la otra fuerza? ¿A qué distancia de la resultante se encuentra cada fuerza?

Assuming that the first person pulls with 0° direction, the second person pulls with 90° direction and the third person pulls with 180° direction, the net force would be

It's module is

Therefore, the net force is 71.6 Kgf

Now, in the second problem, if the forces are parallel and have the same direction and sense, that means those forces complement each other, that means if the major one is 250 Newtons, then the second one is 200 Newtons, because the net force is 250 N.

Therefore, the missing force is 200 N.

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:

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right