2. Even though state (phase) changes are physical changes, they can be exothermic or endothermic. Describe the difference between physical and chemical exothermic changes. Use an example of each.

Based on the graph, how would you describe the net forces acting on the moving object? a) net force equals zero. b) net force is greater to the right. c) there is no way to determine net force. d) net force is positive and to the right.

Write maxwell's equations and discuss the terms involved and the results of each equation in classical electrodynamics. if it is possible to write these equations in integral form, give the integral forms. find the wave equation for electromagnetic waves from the maxwell equations. what is the propagation velocity of electromagnetic waves in space according to the wave equation you find?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?