The volume flow rate, f, is the volume of fluid that passes a particular point per unit time. In SI units, flow rate , is expressed in /s. 体积流量是指单位时间内通过某一横截面的流体体积。The Continuity Equation:连续方程是一个基本的流体力学方程，它描述了在不可压缩流体中质量守恒的物理原...
Tables containing equations commonly used in physics are included in each AP Exam booklet, for use during the entire exam. Students are NOT allowed to bring their own copies of the equation tables to the Exam room. SECTION I: Multiple Choice ! Do not begin the exam instructions below until ...
However, when students are asked to derive an expression, it is normally expected that they will begin by writing one or more fundamental equations, such as those given on the exam equation sheet. For a description of the use of such terms as “derive” and “calculate” on the exams, ...
1. c.Students should know how to deal with situations in which acceleration is aspecified function of velocity and time so they can write an appropriatedifferential equation and solve it foruby separation of variables, incorporatingcorrectly a given initial value ofu.Progress1st–M. JohnsonAP ...
It seems that physicists are stuck between a rock and a hard place: include math and, as the popular belief goes, every equation risks cutting their readership by half or, exclude math and deprive readers of a deeper understanding. The big question for a physicist who wants to communicate ...
• Calculate the time constant of the RC circuit by using an expression that is not included on the provided equation sheet. • Students were asked two questions about the experimental issues that might have led to the measurement of an unexpectedly long time constant. • The ability to ...
ap18-sg-physics-1 2018 AP Physics 1: Algebra-Based Scoring Guidelines © 2018 The College Board. College Board, Advanced Placement Program, AP, AP Central, and the acorn logo are registered trademarks of the College Board. Visit the College Board on the Web: www.collegeboard.org. AP ...
morefundamentalequations,suchasthosegivenontheAPPhysicsexamequationsheet.Fora descriptionoftheuseofsuchtermsas“derive”and“calculate” on the exams, and what is expected for each, see “The Free-Response Sections⎯Student Presentation” in the AP Physics Course Description . ...
This introduces the gradient of the flux-density into the population equation as an integro-differential operator (see Kourganoff 1963) acting on the source function. Because its kernel has a shorter range than that for the Lambda operator, we have better convergence properties. At Los Alamos,...
equation for full potential 1) Vhalf = ((k)/(4πϵ0))(sqrt((.5L)^2 + yob^2)-yob)2) 2Vhalf A solid disk of radius R = 11 cm lies in the y-z plane with the center at the origin. The disk carries a uniformly distributed total charge Q = 25 μC. A point P is ...