Explain how the microstructure of 40% Sn - 60% Pb alloy forms as it is cooled from liquid state. Be sure to explain: different phases present, where the eutectic forms and when it forms.

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

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive