Apost office has a single line for customers waiting for the next available postal clerk. there are two postal clerks who work at the same rate. the arrival rate of customers follows a poisson distribution, while the service time follows an exponential distribution. the average arrival rate is three per minute and the average service rate is two per minute for each of the two clerks. what is the average length of the line? 3.429 1.929 1.143 0.643 none of these

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called