Questions tagged [physics]
For challenges pertaining to problems in the field of Physics.
39 questions
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Volts, Amps, Watts and Ohms: given two, calculate the other two
Ohm's law tells us that the current (I) in amps flowing through a resistance (R) in Ohms when a voltage (V) is applied across it is given as follows:
V = I / R
...
- 1,712
19
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How far is the Sun?
Introduction
tl;dr
Continuously output the current distance from the Earth to the Sun.
Simplified, the orbit of the Earth around the Sun is an ellipse. So the actual distance between both is ...
- 103k
12
votes
27
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Calculate the relativistic velocity
In special relativity, the velocity of a moving object relative to another object that is moving in the opposite direction is given by the formula:
\begin{align}s = \frac{v+u}{1+vu/c^2}.\end{align}
<...
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22
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48
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Parallel resistance in electric circuits
Introduction:
Two resistors, R1 and R2, in parallel (denoted R1 || R2) have a combined ...
- 18.7k
22
votes
3
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Name the Hadrons
Challenge
Given a quark composition of a particle as input, output the corresponding hadron's name.
Quarks will be represented by a capital letter and antiquarks by a lowercase letter.
The quarks ...
- 7,131
10
votes
2
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Construct a multiparticle quantum state
Sandboxed and made less complicated and hopefully more fun.
Summary of the challenge
Given a number of particles, either identical bosons or identical fermions, output the total wave function of the ...
- 8,939
37
votes
35
answers
5k
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Draw the arc of a ball
Draw the parabolic trajectory of a thrown ball.
The input is the ball's initial upward velocity, a positive integer v. Every second, the ball moves ...
- 11.2k
18
votes
10
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Position from atomic number in the periodic table
Let us consider the following representation of the periodic table.
...
- 2,367
24
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22
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Can this list be balanced?
To check whether a list of non-negative integers is balanced, one can imagine putting respective weights on a board and then try to balance the board on a pivot such that the summarized relative ...
- 13.1k
13
votes
12
answers
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Simulate the ripple effect
Imagine throwing a rock into a pond. You get to see perfect circles of ripples spreading out over the pond, bouncing off of each other. Of course, nothing can be as serene as that in coding, but, we ...
- 19.3k
40
votes
13
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Recreate Minecraft's lighting
Minecraft has a fairly unique lighting system. Each block's light value is either one less than the brightest one surrounding it, or it is a light source itself. Your task is to write a method that ...
- 341
22
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14
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Elastic collisions between blocks
The 3Blue1Brown Youtube channel released a video a year ago called "Why do colliding blocks compute pi?" which describes a model where a block A of mass \$a\$ ...
- 5,415
13
votes
3
answers
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Physics golf: inclined shooting
An angry bird is shot at an angle \$β\$ to the horizontal at a speed \$u\$. The ground is steep, inclined at an angle \$α\$. Find the horizontal distance \$q\$ that the bird traveled before it hit the ...
- 50.9k
19
votes
10
answers
5k
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What do I need to destroy the world?
The gravitational binding energy of a planet is the amount of energy required to separate every tiny piece of it so that no piece will orbit or collide with another piece. For a uniform sphere, ...
- 206k
39
votes
16
answers
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Will I tip over?
Overview
Given a 3 line string, figure out if the structure falls to the left, balances, or falls to the right.
Input structure
You can imagine the structure as metal rod with stuff on top, all being ...
- 50.9k