A violin string which is 30.4 cm long is tuned so that its pitch is concert A which is 440 Hz. (In the case of a violin, "pitch" means the fundamental frequency of the standing wave on the string.) ( can effectively shorten the string by placing my finger on it and pressing it down. How far from the end of the string should I put my finger if I want the pitch of the note to be 573 Hz

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative