Answer:
a)
b)
Explanation:
Apparent frequency of the siren is given as
as we know that the wavelength will remain the same as it is having originally
sowe know
a) Now when wind is blowing from source to official
so we have
so we have
b) Now when wind is from official to source
so we have
so we have
Thank you for that exciting news bulletin.
Here are a few more to keep you up to date:
-- The armistice has been signed, as of November 11.
-- Lindy made it !
-- The Japanese have surrendered to General Macarthur.
-- Secretary Clinton has won in the popular vote.
Gravity - is the universal force that is effective over the longest distance.
B. Kinetic energy increase, gravitational potential energy decreases
They both are types or categories of nitrogen containing bases present in nuclei acids of DNA and RNA.
Purines are 2 Ring or Carbon Ring, Nitrogen containing bases. That consist of these 2 rings next placed next to each other. These examples include - Adenine and Guanine.
Pyrimidines are 1 or single Ring Nitrogen containing structures. There are 3 nitrogenous bases that are categorized as pyrimidines. Cytosine, Thymine, and Uracil.
