英语翻译A dock worker loading crates on a ship finds that a 12 k
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/06/02 02:34:20
英语翻译
A dock worker loading crates on a ship finds that a 12 kg crate,initially at rest on a horizontal surface,requires a 69 N horizontal force to set it in motion.However,after the crate is in motion,a horizontal force of 54 N is required to keep it moving with a constant speed.
The acceleration of gravity is 9.8 m/s2 .Find the coefficient of static friction between crate and floor.
Find the coefficient of kinetic friction.
A dock worker loading crates on a ship finds that a 12 kg crate,initially at rest on a horizontal surface,requires a 69 N horizontal force to set it in motion.However,after the crate is in motion,a horizontal force of 54 N is required to keep it moving with a constant speed.
The acceleration of gravity is 9.8 m/s2 .Find the coefficient of static friction between crate and floor.
Find the coefficient of kinetic friction.
工人发现装载在船上箱子重12kg,最初静止在水平表面上,需要 69 N 的水平力使他移动.然而,箱子都在运动后,54 N的水平力就能使他匀速移动.
重力加速度的是 9.8 m/s2.求到箱子和地板之间的静摩擦系数.
再问: Find the coefficient of kinetic friction.
再答: 求动摩擦系数
重力加速度的是 9.8 m/s2.求到箱子和地板之间的静摩擦系数.
再问: Find the coefficient of kinetic friction.
再答: 求动摩擦系数
英语翻译At a loading dock,each worker on the night crew loaded 3
英语翻译two crates are stacked on top of each other on a horizon
A dog that trots about finds a
英语翻译1.A sheep finds a lion's skin on the road.He wants on ha
英语翻译A sheep finds a lion's skin on the road.He wants to have
英语翻译A fire broke out on a ship on the sea.it began at ten o'
A dog that trots about finds a bone.
Finds that a person is a lifetime是什么意思
英语翻译A technical redundancy cannot be imposed on a worker onc
英语翻译lucy looks out of the window.she finds a bird sitting on
英语翻译When a consumer(消费者) finds that something he or she boug
英语翻译a.An eye finds more truth than two ears.b.He that travel