According to Latter Day Saint belief, the golden plates (also called the gold plates or in some 19th-century literature, the golden bible) are the source from which Joseph Smith translated the Book of Mormon, a sacred text of the faith. Some witnesses described the plates as weighing from 30 to 60 pounds (14 to 27 kg), gold in color, and composed of thin metallic pages engraved with hieroglyphics on both sides and bound with three D-shaped rings.Smith said that he found the plates on September 22, 1823, on a hill near his home in Manchester, New York, after the angel Moroni directed him to a buried stone box. He said that the angel prevented him from taking the plates but instructed him to return to the same location in a year. He returned to that site every year, but it was not until September 1827 that he recovered the plates on his fourth annual attempt to retrieve them. He returned home with a heavy object wrapped in a frock, which he then put in a box. He allowed others to heft the box but said that the angel had forbidden him to show the plates to anyone until they had been translated from their original "reformed Egyptian" language.
Smith dictated the text of the plates while a scribe wrote down the words which would later become the Book of Mormon. Eyewitnesses to the process said Smith translated the plates, not by looking directly at them, but by looking through a transparent seer stone in the bottom of his hat. Smith published the first edition of the translation in March of 1830 as the Book of Mormon, with a print run of 5,000 copies at a production cost of $3,000 (or 60 cents per book).
Smith eventually obtained testimonies from 11 men who said that they had seen the plates, known as the Book of Mormon witnesses. After the translation was complete, Smith said that he returned the plates to the angel Moroni; thus they could never be examined. Latter Day Saints believe the account of the golden plates as a matter of faith, and critics often assert that either Smith manufactured them himself or that the Book of Mormon witnesses based their testimony on visions rather than physical experience.
Hi All!
See the picture.
A-Consider a flat plate physically moving perpendicularly through the air.
B-Consider this same flat plate sitting perpendicularly and stationary now in a wind tunnel where air is made to flow.
Accordingly if airspeeds, areas etc are similar, the 2 situations...
Homework Statement
Capacitor parallel plates separation $$d$$, potencial diference $$V_0$$, at the center there is a semi sphere of radius $r_0$.
Find the potencial as function of position if $$d>>r_0$$
Homework Equations
I think that relevant equation are Gauss Law
The Attempt at a...
Homework Statement
The parallel Plates of a capacitor have an area of 2.00 x 10-1m2 a separation distance of 1.00 X 10-2 m and are connected to a 3000 V power supply.
The capacitor is then connected from the supply, and a dielectric is inserted between the plates. We find that the potential...
If I had 2 serrated plates like the ones in the attached picture locked in place like seen below. How would I go about calculating the maximum amount of torque needed for failure of the part. Assuming it has 48 teeth and is made from stainless steel?
Homework Statement
The electric field between two circular plates of a capicator is changing at a rate of 1.5 x 10^6 V/m per Second. If the displacement current this instant is ID = 0.80 x 10^-8 A find the dimensions of the plates
Homework EquationsThe Attempt at a Solution
The capacitance of...
A sheet of gold foil (negligible thickness) is placed between the plates of a capacitor and has the same area as each of the plates. The foil is parallel to the plates, at a position 1/2 of the way from one to the other. Before the foil is inserted, the capacitance is 7.9μF. What is the...
How do we find out the potential difference between two equal and opposite charged (conducting) parallel plates mathematically? Let the charge on a plate be 'Q', Total area of a plate be 'A', the distance between the plates be 'd'.
I need a direct mathematical solution please, I've come across...
I am doing my wrong project from school. Its basically a science fair but only for the students in the class. I came up with the idea to use piezoelectric plates to charge a capacitor that then charges one of those portable po charge a phone. I know I'm not the first one do this, but I do want...
I want to make some iron oxide from plate steel i have a couple hundred pounds that I can process but want to make about 50 pounds id prefer to just do it by electrolysis. Do to safety issues I would prefer to process it in 2 pound batches in a polyurethane tub. I would also like to save the...
1.Homework Statement
Two large thin metal plates are parallel and close to each other. on their inner faces ,the plates have surface charge densities of opposites signs and magnitude 1.77 multiplied by 10^-11 coulomb per square meter.What is electric field
a)to the left of the plates
b)to the...
Homework Statement
I need to solve a problem like Jackson 3.18. I need to find potential due to the same configuration but the position of two plates is opposite i.e. Plate at Z=0 contains disc with potential V and plate at Z=0 is grounded.
Homework EquationsThe Attempt at a Solution
I think...
Dear all,
I've one question about fillet weld.
Ex. i have T-joint with both plate are 10mm thickness. if i want weld around on leg of plate, so which symbol can i choose on both case below?
1. Both side of arrow is triangular and no around symbol.
2. only side of arrow is triangular and...
Homework Statement
Two conductive metal plates are bonded together. Upon bonding, an oxide layer forms between them. The oxide layer is negligible thus the overall resistance of the plates is small. However I am having trouble finding this overall resistance, i.e., trying to find Cp and Rp...
Homework Statement
The space between 2 perfect conductor plates parallel to the x-z plane separated by a distance 2a are filled with 2 dielectric materials whose surface also lies in the x-z plane, at a distance equal to a from the plates. We're looking for TM modes propagating along the z...
First in Circuit A:
I hook up a battery with a voltage of V up to a capacitor C1. Once C1 is fully charged it has 6+ on its positive plate and 6- on the negative plate. Given it's fully charged, the +terminal of the battery and the +plate are in electrostatic equilibrium. Since they are both in...
hello all,
I am in the process of measuring coefficients of a rectangular panel using given table in textbooks to obtain them.
I have attached a simple figure of two situations; left is my current situation to analyze- a clamped end and compressive force on the other end.
The situations...
Hello
I have a quarter wave plate for 550 nm but i can't determine which it is a zero quarter wave plate or multiple.
How can I find m in this formula :
delta phase =m*2 Pi +Pi/2
?
Thank you.
If you place an electron between oppositely charged parallel plates, is it true the the force on it is the same regardless of how far it is from each plate? If so how?
Homework Statement
Four identical parallel metal plates with area $$S$$ and distance between each two $$d$$ are located in air. The external plates are connected by wire. What is the equivalent capacitance between A and B?
This is problem from Irodov.Homework Equations
$$q=UC$$[/B]The Attempt...
In my textbook it is written that
Electric charge on plates of capacitors (without dielectric ) is Q=CV
And when dielectric is inserted in the space between plates of capacitors .charge Q remains the same whereas values of C and V change.
i.e Q=C'V'
is it correct?
Quick question about electromagnetic waves traveling through what's basically a capacitor. In the picture I have labelled areas that I'm curious about.
1. Is there a potential induced at A?
2. If yes, is it localized? I suspect the potential would be different at A and B.
3. Is it correct to...
Homework Statement
Three conducting plates, each of area A = 3.5 cm2, are connected in such a way that the center plate can be moved between the two fixed outer plates. If the distances between the outer plates and the center plate are d1 = 0.35 mm and d2 = 0.65 mm, find the effective...
In an example in my book, the author poses the following question: Given two large plates
at a distance d from each other with arbitrary charges Q' and Q" (with Q' on the bottom plate
and Q" on the top plate), how are the charges distributed on the plates? The author lists
the following...
Homework Statement
Two large, flat metal plates are separated by a distance that is very small compared to their height and width. The conductors are given equal but opposite uniform surface charge densities +- \sigma. Ignore edge effects and use Gauss's law to show
a) that for points far...
Homework Statement
Homework EquationsThe Attempt at a Solution
With my solution, I think cold feed means ##q = \infty##, which is seen from my xy diagram. I have some issue understanding the statement "for each mole of feed 0.15 mol of vapor is condensed at the feed plate". I assumed that...
Homework Statement
A 5.02 pF air-filled capacitor with circular parallel plates is to be used in a circuit where it will be subjected to potentials of up to 95 V. The electric field between the plates is to be no greater than 1.40×104 N/C. As an electrical engineer for Live-Wire Electronics...
Homework Statement
A droplet of oil, carrying an extra charge of one electron, is held motionless between parallel plates separated by 1.89 cm, with a potential difference of 39.8 kV. What is the mass of the droplet?
2. Homework Equations
E=0.5QV
C=Q/V
The Attempt at a Solution
Really...
How exactly do the electrons move from the capacitor to the rest of the circuit? Do they fly between the capacitors plates, or can they only travel where there is a wire connection? (I.e., if a small chunk of our circuit looks like this: A-------| |-------B can an electron start from A, go to...
Homework Statement
I am trying to solve a problem from Jackson's book (in chapter 8). I must describe the propagation of a TEM mode through a transmission line that consists of two infinite conductor plates that are parallel to each other and separated by a distance a. There's a dielectric...
Homework Statement
An electron traveling horizontally east passes between two horizontal, oppositely charged plates and is deflected downward.
Part A: Passing through the same space between the plates, in what direction (if any) a proton traveling horizontally east would be deflected?
Part B...
Hi
I'm looking for a equation (or equations) needed to calculate the electric field between to plates with the same charge. For example, two plates with positive charge.
Any help is appreciated.
Homework Statement
Two large, flat metal plates are separated by a distance that is very small compared to their height and width. The conductors are given equal but opposite uniform surface charge densities +σ and -σ. Ignore edge effects and use Gauss's law to show
a) the electric field...
I have a very fundamental question about interference and quarter-wave-plates. My setup contains only few elements: lightsource, QWPs, double slit and some detectors to see the interference pattern. (Detectors are missing from the bottom of the figure.)
An important thing is that the two QWPs...
Homework Statement
At what angle will the electrons in the image leave the uniform electric field at the end of the parallel plates (point P) ? Assume the plates are .049 m long, E = 5x10^3 N/C and v0 = 1x10^7 m/s. Ignore fringing of the field.
Homework Equations
E = kQ/r^2
F=ma
F= kQ1Q2/r^2...
Hi
I was thinking about two parallel plates with same charges (there's no electrical field between them). How can we calculate the repulsive force? Does anyone have any ideas besides numerical integration?
Thanks
Greetings, I am just confused in something , Is there a difference when calculating the electric field , or a force exerted on a charge between two plates , if the two plates were :
a) both plates are charged ( connected to a power source) ,
OR
b) both plates are charged...
Homework Statement
*Is the a difference when calculating the electric field , or a force exerted on a charge between two plates , if the two plates were :
a) both plates are charged ( connected to a power source) ,
b) both plates are charged ( connected to a power source), but the negative...
Hello. I just want to know if you guys know a website, place, or store where you can use their apparatus and work on a stainless steel plate? Right now I'm planning to create a Hydrogen generator using water with catalyst. Thank you.
If both the plates of a capacitor are connected to positve voltage, (but has a potential differnce between them) will the capacitor be charged? And how?
Homework Statement
Three conducting capacitor plates are kept horizontally, above each other with a gap 'd'. If a charge ##+1\mu C## is kept on the middle plate what is the charge on the plates?
Homework Equations
(This question is theoretical)
The Attempt at a Solution
My textbook gave the...
Homework Statement
Between two plates (distant 4cm) there's an electric field (E = 100N/C).
A proton starts moving from the positive plate and an electron starts moving from the negative plate.
At what distance from the positive plate do they meet? (is "meet the right verb here? :biggrin:)...
Hi,
I am interested to simulate the capacitor with plates having an angle of 195 degrees between them.
https://dl.dropboxusercontent.com/u/32847378/cp1.jpg
I know that if the angle between of plates is 180 deg, then electric lines of forces will follow a elliptical path and equipotential...
Let us take a charged capacitor and move the plates such that it the distance between them be constant. For example, one moves towards left and other moves upwards.
Assuming only overlapping area affects capacitance... WILL THE CHARGE STORED IN CAPACITOR CHANGE?
I know the capacitance changes.
Homework Statement
A charged ball of mass 0.2[gr] and q=6E-9[Coulomb] hangs on a string between 2 plates that are 5[cm] apart. the ball makes 300 with the vertical. what is the voltage difference of the plates.
Homework Equations
Electric field: $$E[\frac{N}{Coulomb}]=\frac{V}{S[m]}$$
The...