단진자의 주기 Period of Pendulum

Period of Pendulum

A pendulum that vibrates can be classified as ‘simple pendulum’ and ‘physical pendulum’. A simple pendulum is a case in which the angular motion of an object can be ignored, such as a small object suspended from a string that…
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공진 Resonance


Find the frequency at which the amplitude is maximum at each rod. What is the relationship between thickness and resonant frequency?

스프링 진자 Spring Pendulum

Spring Pendulum

What are the factors that affect the cycle of the spring pendulum? (The effect of reducing the amplitude by friction is ignored.)

중력 열차 Gravity Train

Gravity Train

What happens if you punch a long hole in the earth and then drop the object? By the way, is this really possible? How long does it take to get to the other side?