Two particles with mass and can be accelerated by a constant 10-N force, If no other forces and the ratio of their accelerations are 2:1, what is the ratio of their masses. （ ）
K=12mv2, where: mis the mass of the object. vis its speed. Answer and Explanation:1 The SI unit of kinetic energy (or any other form of energy) isJoule(symbol:J). A joule can be expressed in the base units as: {eq}\rm 1\; J=1... ...
James Joule.Henry Roscoe/Wikimedia Commons/Public Domain The joule (symbol: J) is the basicSI unitofenergy. A joule is equal to thekinetic energyof a kilogrammassmovingat the speedof one meter per second (one joule is a kg⋅m2⋅s−2). Alternatively, it is the amount of work done...
百度试题 结果1 题目The unit of energy is ___. A. newton B. joule C. watt D. ampere 相关知识点: 试题来源: 解析 B。能量的单位是焦耳(joule)。牛顿(newton)是力的单位,瓦特(watt)是功率单位,安培(ampere)是电流单位。反馈 收藏
The unit of work is the joule. Which of the following formulas represents work? A. W = F × s B. W = P / t C. W = m × v D. W = v / t 相关知识点: 试题来源: 解析 A。功的单位是焦耳,其计算公式是 W = F × s ,其中 F 表示力,s 表示在力的方向上移动的距离。选项 B...
What is the SI unit of charge? What is unit weight? What is the kilometer an SI unit of? What is the SI base unit for temperature? What are the units of energy? Define what a joule is. What is the operational definition for the rate of transpiration?
Joule is a unit of View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths DC Pandey Solutions for Physics HC Verma Solutions for Physics Sunil Batra Solutions for Physics ...
The SI unit of energy is Joule which is named after James Prescott Joule and the unit is same as the unit of power. The CGS unit of energy is erg. Visit BYJU'S to learn more.
Power is the rate at which work is done. What is the unit of power? A. joule B. watt C. newton D. kilogram 相关知识点: 试题来源: 解析 B。A 选项 joule 是焦耳,是能量的单位;C 选项 newton 是牛顿,是力的单位;D 选项 kilogram 是千克,是质量的单位;B 选项 watt 是瓦特,是功率的单位。
Which of the following is not a unit of force? A. Newton B. Joule C. Dyne D. Pound 相关知识点: 试题来源: 解析 B。牛顿(Newton)、达因(Dyne)、磅(Pound)都是力的单位,而焦耳(Joule)是能量单位。本题涉及力的单位的物理知识,阅读技巧是区分不同物理量的单位。