A merry-go-round rotates with a centripetal acceleration of 21 m/s? If the outer horses are 10 m from the center of the ride, what is their velocity?

Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point p, which is 0.50 m from the center of the sphere, is 15,000 n/c and is directed radially outward. what is the maximum magnitude of the electric field due to this sphere

Blank liquids and gases exert a buoyant force on objects placed in them

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