Answer:
Delta pressure = 45938[Pa]
Explanation:
This is a classic bernoulli equation problem, but first we must find the velocity at both ends of the pipe, knowing the diameters of each end.
Now we can calculate the two velocites VA and VB
Using the bernoulli equation we have:
Where ro = density of water = 1000[kg/m^3]
Answer:
5.65×10⁻²¹ Joules
Explanation:
k = Boltzmann constant = 1.38 × 10⁻²³ m² kg/s² K
t = Temperature of Nitrogen molecule = 1.88×10⁻⁵ °C = 0.0000188 + 273 K = 273.0000188 k
According to Kinetic theory of gases
∴ Average kinetic energy of a nitrogen molecule is 5.65×10⁻²¹ Joules
Answer:
The decision designer is a step-wise process
Explanation:
A typical decision tree will be like this:
Are there any forces?
YES - then calculate the resultant forces NO - Then no calculations are needed
IF YES - Are the forces balanced? NO - Then no calculations
IF YES - Then calculations can be done.
Resolve the forces to find the resultant of the forces in the question.
Answer:
Direct current
Explanation:
The current that is supplied by electric cells and batteries.Electons flows in one direction and does not change directions.