The law of conservation of momentum<span> states that for two objects colliding in an isolated system, the total </span>momentum<span> before and after the collision is equal. Momentum should be conserved. Hope this answers the question. Have a nice day.</span>
<span>The normal force is the support force exerted upon an object which is in contact with another stable object. For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book. The normal force in itseñf comes from the third law of Newton as a reactive force</span>
That tells you that one of two things has happened:
Either
-- the source began emitting sounds with lower frequency
or
-- the source began moving away from you, and the
apparent change is due to the Doppler effect.
El sol es una bola de gas así como las estrellas:)
Option B, 1.O m/s is correct