Bonjour ! Représente, en traçant des schémas soignés, 5 positions successives d'un objet en mouvement:

a. Rectiligne décéléré de direction verticale, vers le haut.

b. Circulaire uniforme dans le sens horaire.

c. Rectiligne uniforme de direction horizontale, vers la droite.

d. Circulaire accéléré dans le sens antihoraire.

Merci pour votre aide !​

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:

momentum of soft ball three times less than baskey ball