Answer:
Reverse engineering
Explanation:
Reverse Engineering is the remaking of already made products following the deconstruction and examination of the product to make known the product design, code and architecture features, gain knowledge of the composition and construction in a scientific research approach
Reverse engineering is also known as back engineering and consists of three main stages
1) Recovery implementation
2) Design recovery
3) Recovery analysis.
Answer:
a) In turbulent flow, the tubes with rough surfaces have much higher friction factors than the tubes with smooth surfaces.
Explanation:
Turbulent flow is a type of fluid flow in which fluid will undergo irregular fluctuations. The tubes with rough surfaces have higher friction factors than the tubes with smooth surfaces. In laminar flow the effect of effect of surface roughness is negligible on friction factors.
Answer:

Explanation:
m = Mass of satellite = 15000 kg
h = Distance above Earth = 800 km
R = Radius of Earth = 6371 km
M = Mass of Earth = 
G = Gravitational constant = 
Potential energy is given by

The potential energy of the satellite is
.