An elastic string of mass 4.2 g is stretched to length 1.6 m by the tension force 23 N . The string is fixed at both ends and has fundamental frequency f1 . When the tension force increases to 575 N the string stretches to length 11.2 m and its fundamental frequency becomes f2. Calculate the ratio f2 f1 .

Ball b is hanging from an inextensible cord. an identical ball a is released from rest when it is just touching the cord and drops through the vertical distance h a 5 8 in. before striking ball b. assuming e 5 0.9 and no friction, determine the resulting maximum vertical displacement h b of the ball b

The mentor is usually a peer of the individual that acts as a role model and the individual get started in adult life.

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.