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How do you calculate radius of van de graff generator?
Others may well disagree, but it seems to me that the best way to accomplish that requirement is to first turn off the generator, then discharge it to ground, snug a measuring tape around the globe at its widest point, read the number on the tape, and divide that number by 2 pi .
What is a pi meson?
A pi meson, or pion, is one of three fundamental particles that help explain the strong force, or strong interaction. A link can be found below.
How long must a simple pendulum be if it is to make exactly one swing per second that is one complete vibration takes exactly 2.0s?
One swing per second, or 1 full cycle (two swings) per 2 seconds, corresponds to a period of T = 2 s. Using the pendulum equation: T = 2 * pi * sqrt(l/g) 2 s = 2 * pi * sqrt(l/9.81 m/s2) (1 / pi) s = sqrt(l/9.81 m/s2) (1 / pi)2 s2= l/9.81 m/s2 l = 9.81 m/s2 * (1 / pi)2 s2 l ~ 0.994 m
Difference between absolute PSK and differential PSK?
In abs. PSK only instant phase for the incoming bits are considered. For DPSK, the difference between previous phase and the present phase is considered. Example: If BPSK is used, then for 0 if phase if pi and for 1 it is 0, then for abs. BPSK the phase states for the bit stream 1010 will be 0,pi,0,pi for DPSK, we assume initial phase is zero and a rule that , if incoming bit is zero, then phase difference is 0 and if it is 1 then, phase difference is pi. So, phase difference will be--pi,0,pi,0 Instant phase will be, pi,pi,0,0....Easy!!
Why you are using h bar in heisenberg uncertainity principle?
Sometimes frequency is not in terms of Hertz (Hz) ,CYCLES PER SECOND, but instead it is expressed as RADIANS PER SECOND, which is angular frequency. Therefore a conversion factor must be used, which is 'h-bar' Recall the following ---------------------------- h-bar = h/(2*pi) where h is Planck's constant angular frequency, ω = 2*pi*ν where ν is frequency in Hertz. ---------------------------- So lets take Planck's relation: Energy (E) = Planck's Constant (h) * frequency( ν ) E = h * ν 1) If the frequency ( ν ) is in Hz, then just looking at the units, Planck's relation becomes E = h * ν = ( J-s ) * (1/s) = J ---> Expected unit for energy: Joule 2) If the frequency ( ν ) is in Radians per second, h must have a conversion factor to accommodate angular frequency. Again, if we look at Planck's relation using angular frequency, ω = 2*pi*ν E = h * ω = ( J-s) * [ (2*pi)/s ] = J * 2*pi ---> Not the expected unit for energy So we must use a reduced Planck constant, h-bar = h/2*pi to obtain Joules E = h * ω = [( J-s)/(2*pi)] * [ (2*pi)/s ) = J ---> Expected unit for energy: Joule
What are the advantages and disadvantages of Pcontroller?
Advantage : PI controller has zero steady state error. Disadvantage : PI controller has maximum overshoot and high settling time
What are the advantages and disadvantages of open and closed plan offices?
advantages: good communication with colleagues. save time. reduce cost. disadvantages: lost of documents. lost of concentration. lack of privacy.
How do you find pi using a equation?
If: circumference = pi*diameter Then: pi = circumference/diameter
How do you calculate circumference and area of pi?
Pi is the number of times the diameter of a circle will fit into the circumference. Pi is not a circle, and does not have a circumference or area. To calculate a circumference USING pi, the circumference is diameter * pi. To find the area using pi, area = pi * radius * radius
What pi is in Welsh?
The Welsh word for "pi" is "pi". The concept of pi remains the same in Welsh and is commonly referred to using the same term.
How do you Find the circumference of a circle using pi?
pi times diameter
In what year did the English start using the symbol of pi for pi?
1706
What is the area of a circle with a radius of 10 in using 3.14 for pi?
Using 3.14 as Pi the area of circle is: 314.0
What is the area using pi and 8 ft?
Area of a circle = pi*radius2
How do you figure out the area of shapes using Pi?
i think you do d x pi
How do you find the diameter of a circle using pi?
Diameter = circle's circumference/pi
What is te square root of pi?
Using 3.1415927 as pi, the sq root is 1.772453864
