To properly operate the laboratory thermometer Group of answer choices it needs to be shaken but make sure you have enough room to shake it safely there is no need to shake it before measurement always shake it before measurement

it needs to be shaken but make sure you have enough room to shake it safely

Explanation:

To properly operate the laboratory thermometer  it needs to be shaken but make sure you have enough room to shake it safely. This done because there is a small bend in the mercury channel of a clinical thermometer that uses mercury. You must shake the thermometer to get the mercury from a previous reading from the thermometer back into the bulb for taking new reading. The bend prevents flow back into the tube so that one can comfortably take reading.

50 inches should be the resultant vector