Assume that the specific heat capacity of water is 4200j kg-1 k-1 and that of copper.380j kg-1 k-1. 1 calculate the heat capacity Cs of the good conductor
2 what are the possible source of error in the experiment

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these