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prissydizzybella5
09.09.2020 •
Physics
Two uniform very long (infinite) rods with identical linear mass density rho do not intersect. Their directions form an angle α and their shortest separation is a.
1. Find the force of attraction between them due to Newton's law of gravity.
2. Give a dimensional argument to explain why the force is independent of a.
3. If the rods were of a large but finite length L, what dimensional form would the lowest order correction to the force you found in the first part have? Note: for ' J-n/2 1-42 sin2 θ 1-A
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Ответ:
The spring balance (also known as spring scale) is simply a spring fixed at one end with a hook to attach an object at the other. It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position.
HOW IT WORKS:
It consists of a spring fixed at one end with a hook to attach an object at the other. It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position. Therefore, the scale markings on the spring balance are equally spaced.