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Hipervinculo Física
Planets, asteroids, and comets don’t travel around the sun in perfect circles. Their orbits are stretched out into a shape called an ellipse. The sun, rather sitting right in the center of the shape f ...
Ever wanted to know how high and how fast you can kick a football? Turns out, it’s pretty easy to figure out. All you need to know is how far away from you the ball lands and how much time it spends i ...
Hitting a baseball with a bat is said to be one of the most difficult things to do in sports. The ball comes at you at speeds exceeding 80 mph, and as the ball travels from the pitcher’s mound to home ...
Hipervinculo Matemáticas
Every day, the Sun rises in the east, rides across the sky, and sets in the west. Once upon a time, people thought gods like Apollo carried the Sun on a chariot. But as it turns out, the Sun doesn’t m ...
The final shot in the pool game is yours, but the cue and the eight ball aren’t nicely lined up with any of the pockets. Looking around, the closest pocket is 45 degrees off the line between the two b ...
Hipervinculo Física
Have you ever seen one of those roller coasters that shoots out of the station at an insanely high speed? These roller coasters don’t need to climb hills first to use gravitational potential energy—th ...
If space is a vacuum—that is, if it contains absolutely nothing—then how does a rocket move? Doesn’t it need something to push against?Rockets can propel themselves through the nothingness of space be ...
Hipervinculo Física
The movement of a pendulum is called simple harmonic motion: when moved from a starting position, the pendulum feels a restoring force proportional to how far it’s been moved. Put another way, it alwa ...
Hipervinculo Física
You may have learned that the Moon goes around the Earth and the Earth goes around the Sun. But that’s not quite right. Strictly speaking, the Moon and Earth orbit each other.The barycenter is the poi ...
Hipervinculo Física
An Atwood Machine is a very simple device invented by George Atwood in 1794 as a way to demonstrate Newton’s Laws of Motion. Newton’s Second Law of Motion says that the force required to move somethin ...
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