Frequency is the number of occurrences of a repeating event per unit of time.It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency.
The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency.
1.gravitavtional pull pulls us down towards the ground
2.it exist so we do not float around
3.do not know how to solve 3( hope this help:)
Most water molds and/or downy mildews live in the water or in moist places, These organisms usually grow as tiny fuzz.
When food and waste products are pushed through the intestine, a tube shaped structure that is part of the digestive tract.
when pee is forced through the ureters.
