Questions tagged [physics]
For challenges pertaining to problems in the field of Physics.
39 questions
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Parallel resistance in electric circuits
Introduction:
Two resistors, R1 and R2, in parallel (denoted R1 || R2) have a combined ...
- 46.8k
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13
answers
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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 ...
- 691
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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 ...
- 150k
106
votes
16
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Simulate the Universe!
One nice property of a Turing-complete language is that it can be used to write any program, up to and including the simulation of the entire Universe.
Your job is to do exactly that: write a program ...
- 8,143
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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 ...
- 691
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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\$ ...
- 8,165
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Position from atomic number in the periodic table
Let us consider the following representation of the periodic table.
...
- 321
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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 ...
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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}
<...
user45941
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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 ...
- 1,075
46
votes
19
answers
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Lever Simulator 2015
Why a Simulator?
Kids these days don't have the time nor the ambition to actually go and stack boxes on the see-saw or play around with balancing physical objects. This leaves lots of room in the ...
- 1,881
20
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Convert Planck unit to SI metric
Objective
Given a dimension of an SI unit, convert the Lorentz-Heaviside version of a Planck unit \$1\$ into SI metric.
What is a Planck unit?
Planck units are a set of units of measurement. It ...
- 7,381
29
votes
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Billiard balls collision
Given the 2-dimensional positions and velocities of a pair of billiard balls right before impact, calculate their velocities after a perfectly elastic collision. The balls are assumed to be ideal ...
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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, ...
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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 ...
- 4,817