Andrew Brookes/ Getty Images The acid-test ratio (ATR), also commonly known ... A company may be illiquid but solvent, for example, or vice-versa. No single ratio will suffice in every ...

f = frequency = number of waves produced by a source per second, in hertz Hz. T = period = time it takes for one complete vibration or oscillation, in seconds s. A boat at sea bobs up and down as ...