Homework Statement
I am trying to find the current across Rg. I do not understand the answer provided
Homework Equations
The Attempt at a Solution
Am I supposed to add the two voltage sources and then continue?
Homework Statement
I found the values ##F_{3\rightarrow(1+2)}=0.32## and ##F_{1\rightarrow3}=0.25##
I now want to find ##F_{2\rightarrow3}##
Homework Equations
Reciprocity relation
##A_iF_{i\rightarrow j}=A_jF_{j\rightarrow i}##
The Attempt at a Solution
Using the reciprocity relation to find...
Homework Statement
I am trying to find the peak time and %OS from the diagram
Homework Equations
The Attempt at a Solution
I know how to get the %OS but for the peak time, isn't it just the time of the first peak, so around 1.1s? But the answer I am supposed to be getting is 0.0922s
Homework Statement
http://postimg.org/image/5o9kcuj57/
I do not understand what the vectors W and V represent
Homework Equations
The Attempt at a Solution
I know U is the tip speed velocity but I don't know about the other two
thanks. Also, for the first diagram,on the very first run of the loop, is the signal exiting the (2s+1)/s block the same after it passes through the summing junction?
Homework Statement
I am trying to understand the simplification between these two block diagrams
Homework Equations
The Attempt at a Solution
I understand the 2s+1/s has been moved past the summing junction, resulting in the 2s.
But I dont understand where the s/2s+1 block comes from
Homework Statement
http://postimg.org/image/uc0c581cb/
For (b), how many points of linearly independent motion are present in this system?
Homework Equations
The Attempt at a Solution
The solution says there is rotation of J1, between K1 and D1, to the right of K2 and finally J3
But isn't...
Topics covered include links, mechanisms, Kinematics of rigid bodies : Relative Velocity and Acceleration method, Instantaneous Centre Method, Dynamics of Rigid Links, Gears, Cams etc
I cuurently have this book ...
Homework Statement
Attached image
Homework Equations
The Attempt at a Solution
The book says that the force P causes a torque about the x axis. Why is it not a moment about x?
Why is it specifically a torque in this case?
Homework Statement
http://postimg.org/image/9va37id55/
The question is to find the shear stress at the points A, B and C. The solution uses the sectioning planes aa, bb and cc to do so.
For example, at C, how should I know whether to use a horizontal or vertical sectioning plane. Also, how...
Homework Statement
This is a diagram T-v diagram for a closed system consisting of a sample of moist air that is cooled at constant pressure
can someone explain what happens for the state of the water vapor to move from d to 2? if its cooling at constant pressure, why does it not stay on the...
Homework Statement
How do I set up a matrix to find the combination of ( M(L^2)/T ) and I ( L^4)
that results in units of M/ ( L^2 T^2 ) ?
Homework Equations
The Attempt at a Solution
I think it looks something like
[ 1 0
2 4
-2 0 ]
*
[ a1, a2, a3]
=
[1 -2 -2]
but the dimensions of...
Homework Statement
http://postimg.org/image/4a8sv6umh/
Why do the pressure forces due to p1 and p2 act in the same direction?
Homework Equations
The Attempt at a Solution
I thought that, given the direction of the flow, the pressure force on the bottom and top would act in opposite directions