网友您好，请在下方输入框内输入要搜索的题目：

搜题

题目内容（请给出正确答案）

提问人：网友jufeng198710 发布时间：2022-01-07

[单选题]

A ventilation fan with a moment of inertia of 0.034 kg∙m^2 has a net torque of 0.11 N∙m applied to it. If it starts from rest, what kinetic energy will it have 8.0 s later？

A.31 J

B.17 J

C.11 J

D.6.6 J

E.8.6 J

F.3.6 J

参考答案

简答题官方参考答案（由简答题聘请的专业题库老师提供的解答）

查看官方参考答案

网友提供的答案

共位网友提供了参考答案，

查看全部

· 有3位网友选择 A，占比33.33%
· 有3位网友选择 D，占比33.33%
· 有2位网友选择 C，占比22.22%
· 有1位网友选择 B，占比11.11%

更多“A ventilation fan with a moment of inertia of 0.034 kg∙m^2 has a net torque of 0.11 N∙m applied to i…”相关的问题

第1题

Piers did the most careful experiments, and demonstrated that fermentation which took place in the air of Paris did not do so in the glacial air on the high Alps.

点击查看答案

第2题

__________________, which was extremely popular, made Angelou one of the first black women to enjoy mainstream literacy success.

A、I know Why the Caged Bird Sings

B、On the pulse of Morning

C、And Still I rise

D、Mom &Me &Mom

点击查看答案

第3题

Therefore the sage e______ (to accept something enthusiastically) the Oneness (of the universe), making it his testing-instrument for everything under Heaven, which means that people who are i___ l____ w____ (in accordance with) Dao will stick to this principle as the p______ (a model of something, or a very clear and typical example of something) of world affairs. (time: 10:40)

点击查看答案

第4题

A bucket of water with total mass 23 kg is attached to a rope, which in turn is wound around a 0.050-m radius cylinder at the top of a well. A crank with a turning radius of 0.25 m is attached to the end of the cylinder and the moment of inertia of cylinder and crank is 0.12 kg∙m^2. If the bucket is raised to the top of the well and released, what is the acceleration of the bucket as it falls toward the bottom of the well? _______m/s^2. (Assume rope's mass is negligible, that cylinder turns on frictionless bearings and that g = 9.8 m/s^2.)

A、3.2

B、6.3

C、7.4

D、9.8

E、98

F、12.5

G、19.8

点击查看答案

第5题

A solid sphere of mass 4.0 kg and radius 0.12 m starts from rest at the top of a ramp inclined 15°, and rolls to the bottom. The upper end of the ramp is 1.2 m higher than the lower end. What is the linear speed of the sphere when it reaches the bottom of the ramp? (Note: I = 0.4MR^2 for a solid sphere and g = 9.8 m/s^2)

A、4.7 m/s

B、4.1 m/s

C、3.4 m/s

D、2.4 m/s

E、1.4 m/s

F、3.1 m/s

点击查看答案

第6题

A uniform meter stick balances on a fulcrum placed at the 40 cm mark when a weight W is placed at the 30 cm mark. What is the weight of the meter stick?

A、W

B、2W

C、W/2

D、0.4 W

E、4 W

F、5 W

点击查看答案

第7题

Two equal magnitude forces are in opposite directions and their lines of action are separated by distance d. These two forces are applied to a solid disk, which is mounted on a frictionless axle. If d is half the radius r of the disk, which of the following positions for the forces would give the most torque.

A、One force on a line touching the circumference of the disk, the other on a line halfway to the center.

B、One force on a line at a distance d from the center and the other on a line through the center of the disk.

C、One force on a line at a distance d/2 from the center of the disk, and the other on a line at a distance d/2 on the opposite side of the center of the disk.

D、Since all the other orientations give the same torque, choose this answer.

点击查看答案

第8题

A turntable has a moment of inertia of 3.0×10^-2 kg∙m2 and spins freely on a frictionless bearing at 25 rev/min. A 0.30-kg ball of putty is dropped vertically on the turntable and sticks at a point 0.10 m from the center. By what factor does the kinetic energy of the system change after the putty is dropped onto the turntable?

A、0.91

B、1.0

C、0.82

D、1.5

E、2.5

F、11.5

G、3.5

点击查看答案

第9题

An 800-N billboard worker stands on a 4.0-m scaffold supported by vertical ropes at each end. If the scaffold weighs 500 N and the worker stands 1.0 m from one end, what is the tension in the rope nearest the worker?

A、450 N

B、500 N

C、800 N

D、850 N

E、950 N

F、1050 N

G、350 N

点击查看答案

账号：尚未登录

登录没有账号？去注册

搜题记录

联系客服

购买搜题卡

考试指南全部 >

24年广东省成人高考科目扬州成人高考专业有哪些成考专升本入学考试有哪几门科目（成人高考大专什么时候报名）四川2024年成人高考专升本考试内容 24上半年广西自学考试成绩查询步骤指南自考本科每年啥时候开始报名考试 24年安徽成人高考考什么 24上半年广西自考成绩查询入口详解 2024网上报名自考本科步骤流程详解苏州农业职业技术学院成人高考的学习方法事业编司法考试接受成人高考学历报名参加考试辽宁2024年成人高考专升本考试内容

购买搜题卡查看答案

购买前请仔细阅读《购买须知》

请选择支付方式

微信支付

支付宝支付

点击支付即表示你同意并接受《服务协议》和《购买须知》

立即支付已付款，但不能查看答案，请点这里登录即可>>

搜题卡使用说明

1. 搜题次数扣减规则：

功能	扣减规则
功能	基础费（查看答案）	加收费（AI功能）
文字搜题、查看答案	1/每题	0/每次
语音搜题、查看答案	1/每题	2/每次
单题拍照识别、查看答案	1/每题	2/每次
整页拍照识别、查看答案	1/每题	5/每次