A. Newton's First Law B. Newton's Second Law C. Newton's Third Law D. None of the above 相关知识点: 试题来源: 解析 B。<解析:公式F = ma表达的是力、质量和加速度之间的关系,这正是牛顿第二定律的内容,所以答案为B。A选项牛顿第一定律主要是关于惯性的;C选项第三定律是作用力与反作用力的关...
2.Newton's Third Law:For every action,there is an equal and opposite reaction.3.To the left.4.Mass is a measurement of the amount of matter something contains,while weight is the measurement of the pull of gravity on an object.One difference:the mass of an object doesn't change when ...
A generalization of Newton's formula for shear stress in a fluid is carried out by giving it a power-law form and the corresponding rheological relation is written in tensor form. Depending on the exponent in this rheological ratio, one can come to a description of ei...
Newton’s law of gravitation, statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them. Isaac Newton put forward the law i
body.Newton’s third lawstates that when one bodyexertsa force on another body, the second body exerts an equal force on the first body. This principle of action and reaction explains why a force tends to deform a body (i.e., change its shape) whether or not it causes the body to ...
According to Newton's second law, acceleration is directly proportional to the summation of all forces that act on an object and inversely proportional to its mass. It's all common sense – if several different forces are pushing an object, you need to work out what they add up to (they...
doi:10.1016/B978-1-4832-3197-6.50009-5G.G. CHERNYIElsevier Inc.
Planck’s radiation law, a mathematical relationship formulated in 1900 by German physicist Max Planck to explain the spectral-energy distribution of radiation emitted by a blackbody (a hypothetical body that absorbs all radiant energy falling upon it).
Snell’s law, in optics, a relationship between the path taken by a ray of light in crossing the boundary or surface of separation between two contacting substances and the refractive index of each. This law was discovered in 1621 by the Dutch astronomer
segment of conductor to the totalBfield of a current in the conductor. For a segment of conductor of length and orientationdlthat carries a currenti,dB=μ0/4πIdl×r̂/r2.In this equation, μ0is the permeability of free space and has thevalueof 4π × 10−7newtonper squareampere....