两个英语关于动量和力矩的物理题 老做不对 What is the angular momentum of a figure skater spinning (with arms in close to her body) at 3.5 rev/s,assuming her to be a uniform cylinder with a height of 1.5 m,a radius of 16 cm,and a mas

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两个英语关于动量和力矩的物理题老做不对Whatistheangularmomentumofafigureskaterspinning(witharmsinclosetoherbody)at3.5rev

两个英语关于动量和力矩的物理题 老做不对 What is the angular momentum of a figure skater spinning (with arms in close to her body) at 3.5 rev/s,assuming her to be a uniform cylinder with a height of 1.5 m,a radius of 16 cm,and a mas
两个英语关于动量和力矩的物理题 老做不对
What is the angular momentum of a figure skater spinning (with arms in close to her body) at 3.5 rev/s,assuming her to be a uniform cylinder with a height of 1.5 m,a radius of 16 cm,and a mass of 55 kg.
1 [_______]kg·m2/s
(b) How much torque is required to slow her to a stop in 5.0 s,assuming she does not move her arms?
2 [_______]m·N
A centrifuge rotor rotating at 15000 rpm is shut off and is eventually brought to rest by a frictional torque of 1.00 m·N.If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m,through how many revolutions will the rotor turn before coming to rest?
1 [_______]rev
How long will it take?
2 [_______]s

两个英语关于动量和力矩的物理题 老做不对 What is the angular momentum of a figure skater spinning (with arms in close to her body) at 3.5 rev/s,assuming her to be a uniform cylinder with a height of 1.5 m,a radius of 16 cm,and a mas
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两个英语关于动量和力矩的物理题 老做不对 What is the angular momentum of a figure skater spinning (with arms in close to her body) at 3.5 rev/s,assuming her to be a uniform cylinder with a height of 1.5 m,a radius of 16 cm,and a mas 一道关于力矩的物理题 一道关于动量的物理题 有关动量的物理题 关于冲量和动量的 一道关于力矩的物理题最好有详解【好的加分 一道物理题,力矩平衡的,如下 物理电场疑惑最近老做一些 固定着带电小球的支架在有电场的竖直平面内旋转的 然后求最大速度 这种问题计算起来 既要看力矩方向 又要看旋转的角度和力臂 物理量一多我就算不对请问各 关于动能与动量的一道物理题关于两个物体的动能与动量的大小,下列说法正确的是：A、若它们的动能相同,其中质量大的物体动量大B、若它们的动能相同,其中质量小的物体动量大C、若它们 关于圆周运动的英语物理题 当两个物体运动做的力相反时,有动量和冲量吗? 关于物体运动具有的动能和动量,以下说法正确的是（） A.运动物体的动量保持不变,则该物体做的是匀速直线运动 B.运动物体的动量持不变,则该物体做的是匀速直线运动 C.两个运动物体相比 带电粒子在匀强磁场中做匀速圆周运动时,关于其动能和动量,正确的是A 动能和动量都不变B都变C动能不断变化,动量不变D动能不变,动量不断变化 大学物理 关于力矩的问题? 动量物理题的做题思路 大家提供一点可以吗如题 明明都会的题为什么老做不对 动量守恒的物理题求大神 动能和动量有什么关系两个公式间有什么关系.一楼的,请注明出处而且不要复制而不对问题