Show that the solid angle subtended by a plane rectangle of sides 2a, 2b, at a point distance l along the normal through its centre can be written

Show that the solid angle subtended by a plane rectangle of sides 2a, 2b, at a point distance l a...
Let S be a smooth parametric surface and let P be starts at P intersects S at most once. The solid angle (S) subtended by S at P is the set of lines starting at P and passing through S. In this problem, we define the measure of the solid angle (in steradians) as a point such that each line that r n dS, where r is the position vector from P to any point on S, l, and the...
2. A uniform, solid cylinder with mass M and radius 2R is on an incline plane with angle of inclination of 6. A string is attached by a yoke to a frictionless axle through the center of the cylinder so that the cylinder can rotate about the axle. The string runs over a disk-shaped pulley with mass M and radius R that is mounted on a frictionless axle through its center. A block of mass M is suspended from the...
a) Let L be the line through (2,-1,1) and (3,2,2). Parameterize L. Find the point Q where L intersects the xy-plane. b) Find the angle that the line through (0,-1,1) and (√3,1,4) makes with a normal vector to the xy-plane. c) Find the distance from the point (3,1,-2) to the plane x-2y+z=4. d) Find a Cartesian equation for the plane containing (1,1,2), (2,1,1) and (1,2,1)
A rod of length 2a is constrained to move with its ends on the perimeter of a circle of radius . This circle lies in the horizontal plane and is fixed. A small insect whose mass is equal to that of the rod moves along the rod, starting from its mid-point and maintaining a constant relative speed V, then show that in time t, the rod will turn through an angle 2 V3 We were unable to transcribe this image...
C++ Code Needed for Lab! Let l be a line in the x-y plane. If l is a vertical line, its equation is x = a for some real number a. Suppose l is not a vertical line and its slope is m. Then the equation of l is y = mx + b, where b is the y-intercept. If l passes through the point (x₀, y₀), the equation of l can be written as y - y₀ = m(x...
#1 and #3
I) )A solid insulating sphere of radius a carries a net positive charge density 3p uniformly distributed throughout its volume. A conducting spherical shell of inner radius 2a and outer radius 3a is concentric with the solid sphere and carries a net charge density-22 Using Gauss's law, find the electric field everywhere. Sketch the electric field 2) "A) The current density in a cylindrical wire of radius R meters is uniform across a cross section of the...
Slove 4.3.8
please
axbycz d be the equation of a plane with normal Exercise 4.3.16 a. Show that w- (u x v) = u (vxw) = v x (w x u) holds for all vectors w, u, and v. n= C w and (u x v) + (vxw) +(wxu) b. Show that v- a. Show that the point on the plane closest to Po has vector p given by are orthogonal Exercise 4.3.17 Show u x (vxw) = (u w)v-...
A uniform thin wire of mass M is bent into the form of a square OPQR of side 2a. Show that the moment of inertia of the wire about an axis through O perpendicular to the plane of the square is 10Ma2/3 . The wire frame can rotate freely in the vertical plane about a smooth pivot at O. It is held with P vertically above O and is released from rest. Find the initial acceleration of the point P....
A source of strength m, which by itself produces radial
streamlines as indicated by the dashed arrows, is placed a distance
L away from a vertical wall (occupying the yz-plane), at point S
(x=L,y= 0). To compute the flow field in the presence of the wall,
the method of images can be employed: A second source of strength m
is placed a distance L from the wall on the other side, at S′
(x=−L,y= 0). The combined flow field of...
show all steps please
(1 point) Suppose a pendulum with length L (meters) has angle 0 (radians) from the vertical. It can be shown that 0 as a function of time satisfies the differential equation: d20 +sin0 0 dt2 where g 9.8 m/sec/sec is the acceleration due to gravity. For small values of 0 we can use the approximation sin(0)~0, and with that substitution, the differential equation becomes linear. A. Determine the equation of motion of a pendulum with length...