An ice cube tray makes a dozen 20.0 g ice cubes. If the ice cube tray is filled
with 0.00°C water, and then frozen into
ice cubes, find Q, the change in heat
energy of the water.

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=

Substances that assume the shape of their container, but do not have a definite size are called