13. sound waves can't travel through
a. a solid.
b. a liquid.
c. an elastic material.
d. a vacuum.

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing