Auniform plane wave of frequency fis propagating through a certain lossy ( 1 medium. the wave is described by the equations 0, 0) non-magnetic (u. is the distance from the origin in the direction of provided to you. in those equations propagation. a. find the wavelength i 4 points b. find the value of er 4 points c. find the value of o 3 points d. find the value of the loss tangent 3 points e. find the magnitude of the magnetic field at the origin 3 points f. find the direction of propagation 3 points problem 1 f = 600 mhz er, t) = 2.4 e -2.97 cos(wt -6.9tr) (-0.57748 -0.5774 9 -0.57742) v/m h(r, t) = h, e-2.9r cos(wt - 6.9tr - (-0.4082 8-0.4082 9 +0.8165 2 ) a/m

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.

Apoint charge +q is at the origin. a spherical gaussian surface centered at the origin encloses +q. so does a cubical surface centered at the origin and with edges parallel to the axes. select "true" or "false" for each statement below. the electric flux through the spherical surface is greater than that through the cubical surface. suppose (for this statement only), that q is moved from the origin but is still within both the surfaces. the flux through both surfaces remains unchanged. the area vector and the e-field vector point in the same direction for all points on the spherical surface. the e-field at all points on the spherical surface is equal due to spherical symmetry. the flux through the spherical gaussian surface is independent of its radius.

Being able to see a square in the middle of the image despite not having lines to form a square represents the gestalt principle of a. proximity b. similarity c. closure d. continuity