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D. Speed and direction, this is because velocity is a vector quantity so has a magnitude and direction assigned to it because it is the rate of change of displacement.
To find the pressure with a given data for the height, you are asked to get the hydraulic pressure. Hydraulic pressure has the following formula:
P = density*acceleration due to gravity*height
Assume that the density of seawater is the same as that for pure water,density = 1000 kg/m^3.
P = 1000 kg/m3*9.81m/s2*9100m
P = 89271000 Pascals or 89.271 megapascals
To solve this problem we will use the concepts related to the expression of energy for harmonic oscillator. From our given values we have that the period is equivalent to

Therefore the frequency will be the inverse of the period and would be given as



The ground state energy of the pendulum is,



The ground state energy in eV,


The energy difference between adjacent energy levels,


