What is frequency of oscillation of a simple pendulum which make 50 oscillation in 24.4 seconds

A group of grade 12 physical science learners are given two test tubes which contain two unknown hydrocarbons. They need to determine which of the hydrocarbons is saturated/unsaturated 1. plan an investigation they are going to undertake to determine that. 2. write down a scientific report on...

Please could someone help me with this question Would you expect to find analogous complexes if aluminium was replaced by an alkali metal in k3{al(c2o4)3}?

1. To give suggestive demonstration of formula that the area of the circle is half the product of its circumference and radius a)by coiling method b)by paper cutting and pasting. 2.to verify that the sum of first n odd natural number is n2 by an activity method. 3.To verify that the sum...