If an ice cube melts at 0°c but water freezes at 0°c what is the difference between melting and freezing in terms of energy involved with phase changes and be particles of substances during the phase changes?

Which sound characteristic is not affected by the relative motion of an object

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? your

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?