What is polarity? and i need an example on it

Polarity is the dipole-dipole intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule

An example is H2+ (SO4)2- in Tetraoxosulphate (VI) Acid

Explanation:

In the acid H2SO4, ionization results in the formation of a Positively charged hydrogen ion (2H+) and a negatively charged Sulphate ion (SO4)2-

The slightly positive and negative parts in the ACID generates the DIPOLE (two poles) and THUS explains polarity

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

i believe the answer is true.