Answer:
27.35m
Explanation:
For the calculation of the Support Force we rely on the formula for obtaining the force in a cylinder of a certain length l,
Here each term is,
= Lift force
= density of air
= vortex strength
For this last equation, its mathematical representation is given by,
Here each term is,
a= 1m, radios of cylinder
, the velocity of cylinder surface.
In order to find the density of the area at 2000m we will refer to the table of Standard Atmosphere of the United States, that is 
Replacing the values,
Clearing l and solving for it we have,
<em>In this way we can conclude that the length of the cylinder must be 27.35m</em>
Answer: damping coefficient = 1.5×10^5Ns/m
Explanation:
Please find the attached file for the solution
<span>The gravity pulls itself into a sphere also known as </span><span><span>hydrostatic equilibrium. This gives the planet a sphere-like shape.
Hope that helps. -UF aka Nadia</span> </span>
Answer:
Explanation:
A ) angular velocity ω = 2π / T
= 2 x 3.14 / 60
= .10467 rad / s
linear velocity v = ω R
= .10467 x 50
= 5.23 m / s
centripetal force = m v² / R
= mg v² / gR
= 834 x 5.23² / 9.8 x 50
= 46.55 N
B )
apparent weight
= mg - centripetal force
= 834 - 46.55
= 787.45 N
C ) apparent weight
= mg + centripetal force
= 834 + 46.55
= 880.55 N.
D )
For apparent weight to be zero
centripetal force = mg
mg = mv² / R
v² = gR
= 9.8 x 50
= 490
v = 22.13 m /s
time period of revolution
= 2π R /v
2 x 3.14 x 50 / 22.13
= 14.19 s
Answer:
SI unit is an international system of measurements that are used universally in technical and scientific research to avoid the confusion with the units. Having a standard unit system is important because it helps the entire world to understand the measurements in one set of unit system.
