百度试题 结果1 题目Which of the following physical quantity is scalar? A. Force B. Impulse C. Momentum D. Work 相关知识点: 试题来源: 解析 D
Scalar, a physical quantity that is completely described by its magnitude; examples of scalars are volume, density, speed, energy, mass, and time. Other quantities,
(orlength)isunity.Theunitvectorparalleltoaisdenotedbyˆa.Clearlyˆa=aa=1|a|abecausethisvectorisparalleltoaand|ˆa|= aa =|a|a=aa=1.RectangularResolutionofVectors.WetakeanoriginOandasetof3fixedaxesOx,OyandOzwhicharemutuallyperpendicular.TheaxesOx,OyandOzinthatorderformaright-handedorthogonal...
A system enabling the frequency, and if desired, phase control of an oscillator which generates a standard signal useful as a carrier which is modulated by modulation signals. A multiplicity of such oscillators and associated transmitters may be used in a simulcast transmission system. The transmiss...
These techniques, made perfect with practice, consider the approximate magnitudes of the physical quantity, inspired by some 'reference' at the back of one's mind. Answer and Explanation: 1 The density of a substance is the mass per unit volume of the substance. The tr...
There are two types of collisions: Elastic collision: An elastic collision is one in which no dissipative forces act during the collision, this means... See full answer below.Become a member and unlock all Study Answers Start today. Try it now...
private def hasNewline(s: String): Boolean = s.indexOf('\n') >= 0 private def scalarStyle(value: String): common.ScalarStyle = if (isBad(value)) common.ScalarStyle.DOUBLE_QUOTED else common.ScalarStyle.PLAIN private def stringScalarStyle(value: String): common.ScalarStyle = if (isBad...
The invention claimed is: 1. A vehicle ground contact surface friction state estimating apparatus for estimating a gripping characteristic of a vehicle wheel of a vehicle on a ground contact surface, comprising: a first input section to set a first input which is a ratio of a first wheel forc...
. An example of the usage of this equation is theFrequency Domain Modeling of a Capacitormodel. Keep in mind that, when modeling only the electric fields, inductive effects such as eddy currents are being neglected. To consider these effects, we must also solve for the time-varying magnetic ...
(orlength)isunity.Theunitvectorparalleltoaisdenotedbyˆa.Clearlyˆa=aa=1|a|abecausethisvectorisparalleltoaand|ˆa|= aa =|a|a=aa=1.RectangularResolutionofVectors.WetakeanoriginOandasetof3fixedaxesOx,OyandOzwhicharemutuallyperpendicular.TheaxesOx,OyandOzinthatorderformaright-handedorthogonal...