Homework Statement
What is the null space of this matrices.
|1 1 0 3 1|
|0 1 -1 0 1|
|1 1 3 0 1|
The Attempt at a Solution
I reduced it to rref using agumented matrice(each one equals to zero )
|1 0 0 4 0 0|
|0 1 0 -1 1 0|
|0 0 1 -1 0 0|
and i get get x1=-x4 , x2= x4...
A 9.08 microFarad capacitor is measured to have a reactance of 245.0 Ohm. At what frequency (in Hz) is it being driven?
I converted 9.08microFaraad in farads- 9.08x10^-6
THe formula i used was 1/(2*pi*f*9.08X10^-6) -- f = 17528.07 Hz
but i am not sure if this is the right answer.
Homework Statement
Calculate the magnitude of the force on an electron moving at 4×10^6 m/s at an angle of 8 degrees to a magnetic field of 0.3 Tesla. Give your answer in Newtons.
Homework Equations
the equation that i used was f= qvBsin(8) The Attempt at a Solution...
Capacitor energy problem??
Homework Statement
A capacitor in this device is charged to 6417.0 V and stores 208.0 J of energy. What is its capacitance?
Homework Equations
i know the equation but dnt know how to use it . . C=(kEoA)/d
The Attempt at a Solution
I don't know how to...