What do you mean by Period of a simple pendulum? And how would you investigate the effect of the length of a pendulum on its period. ​

answer: every other day

explanation: because you don't want to over work your body and especially if your just starting to work out.

answer: no, they are not.*

although rubber bands that contain excessive amounts of dye, toxins, or additives are sometimes toxic, most rubber bands do not cause any health issues. since they are typically made of latex, (a natural substance that is extracted from trees) they are not dangerous in any way if you chew them or accidentally ingest a piece of rubber band. however, chewing rubber bands does pose a choking hazard and is not a good habit to have.

*depending on the type of rubber band. the typical rubber bands that you see at stores are not toxic, but other types of rubber or latex that contains certain chemicals may be unhealthy and hazardous.

Coronavirus disease (COVID-19) technical guidance: Laboratory testing for ... to laboratories and stakeholders involved in laboratory testing of COVID-19 virus. ... Diagnostic testing for COVID-19 is critical to tracking the virus, understanding ... 2. WHO interim guidance for laboratory biosafety related to COVID-19 virus.

Explanation: