When the uterus contractions occur around every 8 to 10 minutes and last about 30 seconds, this is considered the ________ stage of labor

Charles is setting up a factory to build a gadget he invented. To maximize his profits, he wants to get the highest level of production out of his employees. Which reinforcement schedule should Charles establish for the factory workers?

a) Fixed time b) Fixed intervals c) Variable duration d) Response rate

What is the common difficulty for those evaluating the competence of one to execute a will?

A. The family dynamics are not easily ascertained. B. The subject is often deceased when competence is questioned. C. It is tough to know when the will was actually written. D. There are often more than two wills to evaluate.