# Niedderer Models

These models and simulations have been tagged “Niedderer”.

Basic model of Newton's mechanics applied to fall with air friction (e.g. an air balloon)
Ff prop v*v
A spring powered toy car's motion.

Electron in a Coulomb potential (H atom)

W1=-13.6 eV
Basic model for standing waves on a string with varying mass density (e.g. beads)

f1=8.1 Hz; f2=21.05 Hz
Basic model of Newton's mechanics applied to fall with air friction (e.g. a paper cone)
Electron in a one-dimensional square well potential

W1=-9.70751 eV W2=-8.83403 eV  W3=-7.393 eV
4 months ago
Electron in a Coulomb potential (H atom)

W2=-3.401 eV
Basic model of Newton's mechanics applied to fall with air friction (e.g. an air balloon)
Ff prop v*v
A special blue spring powered toy car's motion with special mass m, special spring force Fs, special friction force Ff, taken from measurements

Basic model for motion according Newton's second law.

Model with friction force only, e.g. white bus (toy car), related to the "Introduction to STELLA", NSUK 2017
An airplane has a constant acceleration from its turbins and opposed to it air friction
Fall with weight force, air friction force (e.g. an air balloon) and buoyancy force of the balloon in air
A spring powered toy car's motion.

Basic model for motion according Newton's second law.

Basic model for motion with several forces, related to the "Introduction to STELLA", NSUK 2017
A spring powered toy car's motion.

3 months ago