单词:kineticpotential
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Potential energy in a crossbow When we think of the concept of energy, we often think of objects in motion: a car rolling down a hill or a jogger running up a hill. This kind of energy-in-motion, called kinetic energy, isnt the only kind of energy. A
Air Force Tracks Final Frontier 未来太空三种战略趋势 Theres three strategic trends that I see in space. 我在太空中看到了三种战略趋势。 General Jay Raymond, Commander of Air Force Space Command in Colorado Springs. He recently
How to Create Passion Anywhere and Anytime Remember Science class? Mr. Thatcher, sophomore year in high school, taught us about potential and kinetic energy. I was way more interested in Pam Miller, who sat perilously close to me. But on Mr Thatcher
女生表达我喜欢你的十个小动作 1. For more than 40 years, researchers have been cataloging the non-verbal behaviors women use to let men know they're interested (and vice versa). One important category of flirting includes the oldest tric
Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量,包括物体的,微粒的或质点集的运动等。 势能(Potential energy )是位置的函数,例如把一个
Sit on a swing, let someone push you, and away you go. But what happens if the person who pushed you walks away, and you want to swing faster and higher. If you've ever been in the second grade, you know the solution to that. Just start pumping your