Answer:
Explanation:
Given
base of water tank
Initial volume of water
Water leaves the tank at the rate of
Integrating rate to get desired volume
at
at
therefore
and
Thus height of water remaining is
Answer:
The given vector can be represented in unit vector as

The magnitude of any vector
is given by

Applying values we get

We know that positive x axis in vertorial form is represented as

taking dot product of both the vector's we get

Most scientific questions are based on observations. Scientists observe something repeatedly, and they do the experiments over and over again, so as to get to the bottom of some of their questions.
The smaller the area the greater the pressure, while the bigger the smaller the pressure. So they are inversely proportional
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