Sound with frequency 1240 hz leaves a room through a doorway with a width of 1.11 m . at what minimum angle relative to the centerline perpendicular to the doorway will someone outside the room hear no sound? use 344 m/s for the speed of sound in air and assume that the source and listener are both far enough from the doorway for fraunhofer diffraction to apply. you can ignore effects of reflections.

Walmart’s scm system walmart is famous for its low prices, and you may have experienced its low prices first-hand. at least, you have probably seen its motto, “always low prices— always.” one of the biggest reasons walmart is able to sell at prices lower than almost everyone else is that it has a superefficient supply chain. its it-enabled supply chain management system is the envy of the industry because it drives excess time and unnecessary costs out of the supply chain. so, because walmart can buy low, it sells low. as a matter of fact, if your company wants to sell items to walmart for it to sell in its stores, you will have to do business with it electronically. if your company can’t do that, walmart won’t buy anything from you. log on to walmart’s web site (), search for supplier information, and find out what walmart’s requirements are for its suppliers to do business with it electronically. prepare a brief summary of its requirements for presentation in clas

Archangel manufacturing calculated a predetermined overhead allocation rate at the beginning of the year based on a percentage of direct labor costs. the production details for the year are given below. calculate the manufacturing overhead allocation rate for the year based on the above data. (round your final answer to two decimal places.) a) 42.42% b) 257.14% c) 235.71% d) 1, 206.90% archangel production details.

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.