1. Two masses M1 and M2 are joined by a massless spring of force constant k and unstretched length a. Obtain the normal coordinates of the system for motion along the line joining the particles, as well as the normal frequencies of vibration.http://tinypic.com/view.php?pic=33voh6v&s=7
Here is...
[b]1. Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in. layer of brick and an R-19 layer of insulation. What is the total rate of heat loss through such a wall, if its total area is 195 ft^2 and the temperature difference across it is 15 degrees F.
[b]2...