URGENT! WILL MARK AS BRAINLIEST The CHANGE in momentum (Ap) of the heavy medicine ball equals
kg. m/s. (Express your answer to the nearest integer number. Assume the positive
direction is the direction in which the medicine ball is originally travelling.) SIGN
CONVENTIONS ARE IMPORTANT! If the momentum decreases, Ap will be
NEGATIVE!

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

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.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.