What is a measure of the average speed with which accounts receivable are collected ?

A. constant
B. variable
C. zero
D. zero under limiting conditions
E. never zero

A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
E. none of the above

A. fluid
B. water
C. gas
D. perfect solid
E. ideal fluid

A. center of gravity
B. center of pressure
C. metacentre
D. center of buoyancy
E. in between e.g. and center of pressure