How can you make an item that is made of magnetic material become a permanent magnet instead of a temporary magnet? a. You can leave it in the magnetic field of an actual magnet for a long time.

b. You can heat it while it is being influenced by a magnetic field.

c. You can put it in a very strong magnetic field.

d. You can do any of the above.

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.

In a series circuit the __ is the same at every point