Question

1. At one position and time, an em wave in an insulator has an clectnic field field magnitude of 1.99 mT. Calculate its wave speed. of 311 kV/m and a Remember to replace the metric prefixes with their powers of 10 when needed in problems on all drill sets.) EQUATION USED SOLUTION em wave moving in vacuum tly reflecting surface exerts a to a of 518 Pa on that surface. Find the intensity of that em wave. QUATION USED (ONE= SIGN) SOLUTION ANSWER At one position and time, the c magnetic field is 25.5 mT out of the paper (O). Find the corresponding Poynting vector VECTOR EQUATION USED electric m tow top ()and its an em wave in vacuum iS SOLUTION ANSWER Here I use ф-- in calculating the magnitude. MAGNITUDE DIRECTION 4. A linearly-polarized em wave of intensity 246 MW/m2 moves through (nonmagnetic) zircon, which has a permittivity of 3.27 x 10-11 F/m for this em wave. Find the electric field amplitude of this em wave. EQUATION USED (ONE SIGN) SOLUTION ANSWER trave ou are traveling 18 m/s. (Thus, you are moving apart at 47 m/s.) The speed of sound is 342 m/s. The truck is blasting a hom that you hear to be at 122 Hz. Find the frequency that the truck driver hears from her horn. (You should complete the sketch, writing L in one O and Sin the other O. Ten draw an arrow showing the positive (+) direction. Finally, add two arrows (with signed numbers) showing the L and S velocity components) ONE EQUATION USED at 29 m/s in your conv ertible. You have just SOLUTION ANSWER The truck driver has no speed relative to her horn, so she hears f .(Fill in the subscript.) you truck

Answer 1

mihide o electric bietd E = 31} KVİnn miteade 311 xI wwave speed '97x13