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tianyizheng02 merged 14 commits into from
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770e2f4
Create coulomb_law.py
gudlu1925 May 7, 2023
8466f25
Update coulomb_law.py
gudlu1925 May 7, 2023
07f24ca
Update coulomb_law.py
gudlu1925 May 7, 2023
112b1f9
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] May 7, 2023
fdd4eff
Update and rename coulomb_law.py to coulombs_law.py
gudlu1925 May 9, 2023
43bd954
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] May 9, 2023
2387620
Update coulombs_law.py
gudlu1925 May 9, 2023
d7d6517
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] May 9, 2023
64fceb5
Update coulombs_law.py
gudlu1925 May 9, 2023
c78a384
Update coulombs_law.py
gudlu1925 May 12, 2023
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[pre-commit.ci] auto fixes from pre-commit.com hooks
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1a32040
Update coulombs_law.py
gudlu1925 May 12, 2023
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Update coulombs_law.py
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42 changes: 42 additions & 0 deletions physics/coulombs_law.py
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Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
"""
Coulomb's law states that the magnitude of the electrostatic force of attraction
or repulsion between two point charges is directly proportional to the product
of the magnitudes of charges and inversely proportional to the square of the
distance between them.

F = k * q1 * q2 / r^2

k is Coulomb's constant and equals 1/(4π*ε0)
q1 is charge of first body (C)
q2 is charge of second body (C)
r is distance between two charged bodies (m)

Reference: https://en.wikipedia.org/wiki/Coulomb%27s_law
"""


def coulombs_law(q1: float, q2: float, radius: float) -> float:
"""
Calculate the electrostatic force of attraction or repulsion
between two point charges

>>> coulombs_law(15.5, 20, 15)
12382849136.06
>>> coulombs_law(1, 15, 5)
5392531075.38
>>> coulombs_law(20, -50, 15)
-39944674632.44
>>> coulombs_law(-5, -8, 10)
3595020716.92
>>> coulombs_law(50, 100, 50)
17975103584.6
"""
if radius <= 0:
raise ValueError("The radius is always a positive non zero integer")
return round(((8.9875517923 * 10**9) * q1 * q2) / (radius**2), 2)


if __name__ == "__main__":
import doctest

doctest.testmod()
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Added Coulomb_Law by gudlu1925 · Pull Request #8714 · TheAlgorithms/Python · GitHub
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tianyizheng02
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#8714
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Create coulomb_law.py


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8466f25

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gudlu1925 May 7, 2023
07f24ca

Update coulomb_law.py


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fdd4eff

Update and rename coulomb_law.py to coulombs_law.py


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[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 9, 2023
2387620

Update coulombs_law.py


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d7d6517

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64fceb5

Update coulombs_law.py


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Update coulombs_law.py


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Update coulombs_law.py


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ed46580

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42 changes: 42 additions & 0 deletions
physics/coulombs_law.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
"""
Coulomb's law states that the magnitude of the electrostatic force of attraction
or repulsion between two point charges is directly proportional to the product
of the magnitudes of charges and inversely proportional to the square of the
distance between them.

F = k * q1 * q2 / r^2

k is Coulomb's constant and equals 1/(4π*ε0)
q1 is charge of first body (C)
q2 is charge of second body (C)
r is distance between two charged bodies (m)

Reference: https://en.wikipedia.org/wiki/Coulomb%27s_law
"""


def coulombs_law(q1: float, q2: float, radius: float) -> float:
 """
 Calculate the electrostatic force of attraction or repulsion
 between two point charges

 >>> coulombs_law(15.5, 20, 15)
 12382849136.06
 >>> coulombs_law(1, 15, 5)
 5392531075.38
 >>> coulombs_law(20, -50, 15)
 -39944674632.44
 >>> coulombs_law(-5, -8, 10)
 3595020716.92
 >>> coulombs_law(50, 100, 50)
 17975103584.6
 """
 if radius <= 0:
 raise ValueError("The radius is always a positive non zero integer")
 return round(((8.9875517923 * 10**9) * q1 * q2) / (radius**2), 2)


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Added Coulomb_Law by gudlu1925 · Pull Request #8714 · TheAlgorithms/Python · GitHub
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fdd4eff

Update and rename coulomb_law.py to coulombs_law.py


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2387620

Update coulombs_law.py


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Update coulombs_law.py


gudlu1925 May 12, 2023
ce65ffb

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1a32040

Update coulombs_law.py


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ed46580

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42 changes: 42 additions & 0 deletions
physics/coulombs_law.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
"""
Coulomb's law states that the magnitude of the electrostatic force of attraction
or repulsion between two point charges is directly proportional to the product
of the magnitudes of charges and inversely proportional to the square of the
distance between them.

F = k * q1 * q2 / r^2

k is Coulomb's constant and equals 1/(4π*ε0)
q1 is charge of first body (C)
q2 is charge of second body (C)
r is distance between two charged bodies (m)

Reference: https://en.wikipedia.org/wiki/Coulomb%27s_law
"""


def coulombs_law(q1: float, q2: float, radius: float) -> float:
 """
 Calculate the electrostatic force of attraction or repulsion
 between two point charges

 >>> coulombs_law(15.5, 20, 15)
 12382849136.06
 >>> coulombs_law(1, 15, 5)
 5392531075.38
 >>> coulombs_law(20, -50, 15)
 -39944674632.44
 >>> coulombs_law(-5, -8, 10)
 3595020716.92
 >>> coulombs_law(50, 100, 50)
 17975103584.6
 """
 if radius <= 0:
 raise ValueError("The radius is always a positive non zero integer")
 return round(((8.9875517923 * 10**9) * q1 * q2) / (radius**2), 2)


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Added Coulomb_Law by gudlu1925 · Pull Request #8714 · TheAlgorithms/Python · GitHub
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Sep 27, 2023
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#8714
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770e2f4

Create coulomb_law.py


gudlu1925 May 7, 2023
8466f25

Update coulomb_law.py


gudlu1925 May 7, 2023
07f24ca

Update coulomb_law.py


gudlu1925 May 7, 2023
112b1f9

[pre-commit.ci] auto fixes from pre-commit.com hooks


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fdd4eff

Update and rename coulomb_law.py to coulombs_law.py


gudlu1925 May 9, 2023
43bd954

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 9, 2023
2387620

Update coulombs_law.py


gudlu1925 May 9, 2023
d7d6517

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 9, 2023
64fceb5

Update coulombs_law.py


gudlu1925 May 9, 2023
c78a384

Update coulombs_law.py


gudlu1925 May 12, 2023
ce65ffb

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 12, 2023
1a32040

Update coulombs_law.py


gudlu1925 May 12, 2023
ed46580

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 12, 2023
a8bd7cc

Update coulombs_law.py


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42 changes: 42 additions & 0 deletions
physics/coulombs_law.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
"""
Coulomb's law states that the magnitude of the electrostatic force of attraction
or repulsion between two point charges is directly proportional to the product
of the magnitudes of charges and inversely proportional to the square of the
distance between them.

F = k * q1 * q2 / r^2

k is Coulomb's constant and equals 1/(4π*ε0)
q1 is charge of first body (C)
q2 is charge of second body (C)
r is distance between two charged bodies (m)

Reference: https://en.wikipedia.org/wiki/Coulomb%27s_law
"""


def coulombs_law(q1: float, q2: float, radius: float) -> float:
 """
 Calculate the electrostatic force of attraction or repulsion
 between two point charges

 >>> coulombs_law(15.5, 20, 15)
 12382849136.06
 >>> coulombs_law(1, 15, 5)
 5392531075.38
 >>> coulombs_law(20, -50, 15)
 -39944674632.44
 >>> coulombs_law(-5, -8, 10)
 3595020716.92
 >>> coulombs_law(50, 100, 50)
 17975103584.6
 """
 if radius <= 0:
 raise ValueError("The radius is always a positive non zero integer")
 return round(((8.9875517923 * 10**9) * q1 * q2) / (radius**2), 2)


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Added Coulomb_Law by gudlu1925 · Pull Request #8714 · TheAlgorithms/Python · GitHub
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Added Coulomb_Law#8714

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tianyizheng02
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Sep 27, 2023
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Added Coulomb_Law
#8714
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770e2f4

Create coulomb_law.py


gudlu1925 May 7, 2023
8466f25

Update coulomb_law.py


gudlu1925 May 7, 2023
07f24ca

Update coulomb_law.py


gudlu1925 May 7, 2023
112b1f9

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 7, 2023
fdd4eff

Update and rename coulomb_law.py to coulombs_law.py


gudlu1925 May 9, 2023
43bd954

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 9, 2023
2387620

Update coulombs_law.py


gudlu1925 May 9, 2023
d7d6517

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 9, 2023
64fceb5

Update coulombs_law.py


gudlu1925 May 9, 2023
c78a384

Update coulombs_law.py


gudlu1925 May 12, 2023
ce65ffb

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 12, 2023
1a32040

Update coulombs_law.py


gudlu1925 May 12, 2023
ed46580

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 12, 2023
a8bd7cc

Update coulombs_law.py


tianyizheng02 Sep 27, 2023

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42 changes: 42 additions & 0 deletions
physics/coulombs_law.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
"""
Coulomb's law states that the magnitude of the electrostatic force of attraction
or repulsion between two point charges is directly proportional to the product
of the magnitudes of charges and inversely proportional to the square of the
distance between them.

F = k * q1 * q2 / r^2

k is Coulomb's constant and equals 1/(4π*ε0)
q1 is charge of first body (C)
q2 is charge of second body (C)
r is distance between two charged bodies (m)

Reference: https://en.wikipedia.org/wiki/Coulomb%27s_law
"""


def coulombs_law(q1: float, q2: float, radius: float) -> float:
 """
 Calculate the electrostatic force of attraction or repulsion
 between two point charges

 >>> coulombs_law(15.5, 20, 15)
 12382849136.06
 >>> coulombs_law(1, 15, 5)
 5392531075.38
 >>> coulombs_law(20, -50, 15)
 -39944674632.44
 >>> coulombs_law(-5, -8, 10)
 3595020716.92
 >>> coulombs_law(50, 100, 50)
 17975103584.6
 """
 if radius <= 0:
 raise ValueError("The radius is always a positive non zero integer")
 return round(((8.9875517923 * 10**9) * q1 * q2) / (radius**2), 2)


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Added Coulomb_Law by gudlu1925 · Pull Request #8714 · TheAlgorithms/Python · GitHub
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Update and rename coulomb_law.py to coulombs_law.py


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physics/coulombs_law.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
"""
Coulomb's law states that the magnitude of the electrostatic force of attraction
or repulsion between two point charges is directly proportional to the product
of the magnitudes of charges and inversely proportional to the square of the
distance between them.

F = k * q1 * q2 / r^2

k is Coulomb's constant and equals 1/(4π*ε0)
q1 is charge of first body (C)
q2 is charge of second body (C)
r is distance between two charged bodies (m)

Reference: https://en.wikipedia.org/wiki/Coulomb%27s_law
"""


def coulombs_law(q1: float, q2: float, radius: float) -> float:
 """
 Calculate the electrostatic force of attraction or repulsion
 between two point charges

 >>> coulombs_law(15.5, 20, 15)
 12382849136.06
 >>> coulombs_law(1, 15, 5)
 5392531075.38
 >>> coulombs_law(20, -50, 15)
 -39944674632.44
 >>> coulombs_law(-5, -8, 10)
 3595020716.92
 >>> coulombs_law(50, 100, 50)
 17975103584.6
 """
 if radius <= 0:
 raise ValueError("The radius is always a positive non zero integer")
 return round(((8.9875517923 * 10**9) * q1 * q2) / (radius**2), 2)


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
})();
Added Coulomb_Law by gudlu1925 · Pull Request #8714 · TheAlgorithms/Python · GitHub
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Added Coulomb_Law#8714

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tianyizheng02
merged 14 commits into

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Sep 27, 2023
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Added Coulomb_Law
#8714
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770e2f4

Create coulomb_law.py


gudlu1925 May 7, 2023
8466f25

Update coulomb_law.py


gudlu1925 May 7, 2023
07f24ca

Update coulomb_law.py


gudlu1925 May 7, 2023
112b1f9

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fdd4eff

Update and rename coulomb_law.py to coulombs_law.py


gudlu1925 May 9, 2023
43bd954

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 9, 2023
2387620

Update coulombs_law.py


gudlu1925 May 9, 2023
d7d6517

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pre-commit-ci[bot] May 9, 2023
64fceb5

Update coulombs_law.py


gudlu1925 May 9, 2023
c78a384

Update coulombs_law.py


gudlu1925 May 12, 2023
ce65ffb

[pre-commit.ci] auto fixes from pre-commit.com hooks


pre-commit-ci[bot] May 12, 2023
1a32040

Update coulombs_law.py


gudlu1925 May 12, 2023
ed46580

[pre-commit.ci] auto fixes from pre-commit.com hooks


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a8bd7cc

Update coulombs_law.py


tianyizheng02 Sep 27, 2023

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42 changes: 42 additions & 0 deletions
physics/coulombs_law.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
"""
Coulomb's law states that the magnitude of the electrostatic force of attraction
or repulsion between two point charges is directly proportional to the product
of the magnitudes of charges and inversely proportional to the square of the
distance between them.

F = k * q1 * q2 / r^2

k is Coulomb's constant and equals 1/(4π*ε0)
q1 is charge of first body (C)
q2 is charge of second body (C)
r is distance between two charged bodies (m)

Reference: https://en.wikipedia.org/wiki/Coulomb%27s_law
"""


def coulombs_law(q1: float, q2: float, radius: float) -> float:
 """
 Calculate the electrostatic force of attraction or repulsion
 between two point charges

 >>> coulombs_law(15.5, 20, 15)
 12382849136.06
 >>> coulombs_law(1, 15, 5)
 5392531075.38
 >>> coulombs_law(20, -50, 15)
 -39944674632.44
 >>> coulombs_law(-5, -8, 10)
 3595020716.92
 >>> coulombs_law(50, 100, 50)
 17975103584.6
 """
 if radius <= 0:
 raise ValueError("The radius is always a positive non zero integer")
 return round(((8.9875517923 * 10**9) * q1 * q2) / (radius**2), 2)


if __name__ == "__main__":
 import doctest

 doctest.testmod()