aFriction is the force that opposes motion but inertia is the reluctance of anobject to change its state of rest or motion. [B1]Friction is dependent on weight but inertia is dependent on mass. [B1|bWeight depends on gravitational field strength, thus it is not constanteverywhere.Weight is...
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12. Some animals such as snakes hibernate in the winter because the winter season only provides a cold, frozen ground where food is extremely rare. (词性: ___意思: ___) 13. It is obvious that industry in Britain has declined since the 1970s. (词性: ___意思: ___) 14. Although it...
网络释义 friction 显示所有例句 n. 1. [u] 摩擦the action of one object or surface moving against another 2. [u] 摩擦力the resistance (= the force that stops sth moving) of one surface to another surface or substance moving over or through it ...
百度试题 结果1 题目 It is the force of friction that always slows down the moving object. (词性: ___意思: ___) 相关知识点: 试题来源: 解析 n. 摩擦力 反馈 收藏
the dominant microscopic mechanism for the contact friction is the nonlinear, thermally activated stick-slip dynamics of the contacting asperities, which increases the friction force logarithmically with the sliding velocity6,7. Recent studies have shown that there exists even the minute, noncontact energ...
As there is still much to learn about friction, who knows what the future holds for this essential force? What is certain, however, is that physicists are excited at its huge potential.1 How do you understand that friction is a force that is "hard to resist"?2 What important events in...
Tribology, the study of the interaction of sliding surfaces. It includes three subjects: friction, wear, and lubrication (qq.v.). There is a difficulty in that friction is generally characterized as a branch of physics or mechanical engineering, wear is
Fluid friction: it refers to the friction between layers of a viscous fluid that are moving relative to each other. (3) Lubricated friction: it is a case of fluid friction where a lubricant separates two solid surfaces. Coefficient of friction is the result of friction force divided by normal...
英语翻译The simple fact shows that the more of the force of friction is got rid of,the farther will the ball travel,and we are led to infer that,if all the impeding forces of gravitation and resistance could be removed,there is no reason why the ball,once in motion,should ever stop. ...