For the scalar function T = ?1 e r/5 cos, determine its For the scalar function T = ?1 e r/5 cos, determine its directional derivative along the radial direction Ër and then evaluate it at P (2, ď 4, 3).
The x–y plane separates two magnetic media with magnetic The x–y plane separates two magnetic media with magnetic permeabilities µ1 and µ2, as shown in Fig. 5-45 (P5.30). If there is no surface current at the interface and the magnetic field in medium 1 is H1 – xH1x yH1y zH1z Find: _ (a) H2, (b) […]
The x–y plane contains a uniform sheet of charge The xây plane contains a uniform sheet of charge with s1 = 0.2 (nC/m2 _ and a second sheet with s2 = – 0.2 (nC/m2) occupies the plane z = 6 m. Find VAB, VBC, and VAC for A (0, 0, 6m), B (0, 0, 0) […]
The voltage source of the circuit shown in the figure The voltage source of the circuit shown in the figure is given by vs (t, – 25cos (4, 104t-45o, (v). Obtain an expression for the current flowing through the inductor.
List several advantages and disadvantages of using transpare (a) List several advantages and disadvantages of using transparent polymeric materials for eyeglass lenses. (b) Cite four properties (in addition to being transparent) that are important for this application. (c) Note three polymers that may be candidates for eyeglass lenses, and then tabulate values of the properties […]
List four reasons why glass fibers are most commonly (a) List four reasons why glass fibers are most commonly used for reinforcement. (b) Why is the surface perfection of glass fibers so important? (c) What measures are taken to protect the surface of glass fibers?
(a) Derive planar density expressions for FCC (100) and (111) a) Derive planar density expressions for FCC (100) and (111) planes in terms of the atomic radius R. (b) Compute and compare planar density values for these same two planes for nickel.
(a) Is it possible to grind up and reuse phenol-formaldehyde? (a) Is it possible to grind up and reuse phenol-formaldehyde? Why or why not? (b) Is it possible to grind up and reuse polypropylene? Why or why not?
The electric field of a uniform plane wave propagating in free The electric field of a uniform plane wave propagating in free space is given by E (x + jy) 20eâjď°z/6 (V/m). Specify the modulus and direction of the electric field intensity at the z =0 plane at t = 0, 5 and 10 ns.
The electric field of a plane wave propagating in a nonmagnetic The electric field of a plane wave propagating in a nonmagnetic material is given by Determine (a) the wavelength, (b) ďĽr, and (c) H