The wave function for a particle is of the form 1/f(r ) = (x + y + z)f(r).
1. what are the values that a measurement of l2 can yield?
2. what values can be obtained by measuring lz?
3. what are the probabilities of obtaining these results?
suggestion: express the wave function in spherical coordinates and then in terms of the y1• 111 ·s

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.