The launching velocity of a missile is 20 m/s and it is shut and 53° above the horizontal what is the vertical component of the velocity at launch

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).