Answer: Could you put this in english plz
Explanation:
Answer:
LTI system is stable if Impulse response is finite.
so the correct answer is "b"
(b) h2(t) = e-r cos(2t)u(t)
Answer:
F= 5 N
V= 4 m/s
Explanation:
Given that fluid is Newtonian fluid .As we know that for Newtonian fluid the shear stress given as
We also know that
Force = shear stress x area of plate
Now by putting the values
Here velocity of fluid profile is linear.
τ= 2.5 Pa
So force = 2.5 x 2
F= 5 N
Now when fluid is replaced by another fluid but force is constant.The height of plate is also constant.
Lets take velocity of fluid is V in the new condition
So we can say that
Now by putting the value
50 x 0.4 = 5 x V
V= 4 m/s
Answer:
The power transferred to the fluid is 1.8852 kW
Explanation:
Power = pressure drop × area × velocity
pressure drop = 20 kPa
area = πd^2/4 = 3.142×0.2^2/4 = 0.03142 m^2
velocity = 3 m/s
Power = 20 × 0.03142 × 3 = 1.8852 kJ/s = 1.8852 kW
Answer:
15.65 MPa 150 times of human body internal pressure
Explanation:
Given:
- Depth of the ocean for offshore drilling d = 1 mile
Find:
Determine the pressure at that location
What would happen to an unprotected, exposed person at that depth?
Solution:
- The pressure at a certain depth of a fluid can be calculated with:
P = p_w*g*d
Where, P is the pressure , p_w is the density of water ( 997 kg / m^3 ).
- Hence @ d = 1.0 mile = 1.6 km = 1600 m:
P = 997*9.81*1600
P = 15.65 MPa
- Whereas the pressure inside a human body is 101 KPa, Pressure under ocean @ 1 mile of depth is 150 times in magnitude, enough to crush the human body!