百度试题 结果1 题目 A disc of radius 3v^2z^(-2) cm is removed from a disc of radius 4v^2z^(-2) cm. What is the remaining area? 相关知识点: 试题来源: 解析 7π v^4z^(-4) cm2 反馈 收藏
A uniform disc of mass M and radius R is initially at rest. Its axis i... 02:54 A 1.0 m roulette wheel reaches a maximum angular speed of 18 rad/s bef... 01:49 A ody is in pure rotation. The linear speed v of a particle, the dista... 01:42 A circular disk of radius 0.0...
This decrease of the energy can be interpreted as the shrinking with time of a disc of radius A=A12+A22 centered at the origin. Such a domain of phase space is called an absorbing zone. More generally, an absorbing zone is a region at the boundary of which the vector field always ...
Fast radio bursts (FRBs) are cosmic sources emitting millisecond-duration radio bursts. Although several hundreds FRBs have been discovered, their physical nature and central engine remain unclear. The variations of Faraday rotation measure and dispersio
Gauss's law: The gravitational force exerted by a uniform sphere on a particle outside of the sphere is the same as the force exerted if the entire mass of the sphere were concentrated at its center. Unit: JFor objects further from Earth's surface, use this: the gravitational PE ...
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On the approximation by compositions of fixed multivariate functions with univariate functions The approximation in the uniform norm of a continuous function f(x) = f(x₁,...,xₙ) by continuous sums g₁(h₁(x)) + g₂(h₂(x)), where the fu... VE Ismailov - 《Studia Mathem...
After adsorbing a uniform thin layer of benzoyl peroxide (BPO) molecules (Supplementary Fig. S3), the mediator was subject to an extended laser irradiation (λex=514.5 nm, 0.5 mW) with graphene facing up to the laser. A more pronounced increase in the D band (Fig. 2a) in ...
A plethora of classification models for the detection of glaucoma from fundus images have been proposed in recent years. Often trained with data from a single glaucoma clinic, they report impressive performance on internal test sets, but tend to struggle
PURPOSE:To obtain long fiber or globular particles having uniform specific size by supplying fused inorganic or organic material onto a rotating disc at a constant flow rate and treating the material by selecting a radius of the disc, rotating velocity, etc, to a viscosity of the material. ...