hw19 - PHYS-1200 PHYSICS II HOMEWORK SOLUTIONS CLASS 19...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
PHYS-1200 PHYSICS II SPRING 2006 HOMEWORK SOLUTIONS CLASS 19. 17.96, 33.10, 33.13; Q35.04, Q35.06 17.96. = - = 1 2 1 2 log dB) 10 ( I I β a) 7 . 3 dB 10 dB 37 dB 10 1 2 1 2 1 2 10 10 10 and , dB 10 log so , log dB) 10 ( = = = = = I I I I I I 7 . 0 3 7 . 0 3 7 . 3 1 2 10 10 10 10 = = = + I I 5000 10 0 . 5 3 1 2 = × = I I b) I p m ², so 71 5000 1 2 1 2 = = = I I p p m m c) s m p m , so 71 1 2 1 2 = = m m m m p p s s 33.10. As shown in equation 33-27, on page 8998 of the textbook, 2 15 6 2 )] m/ly 10 ly)(9.46 3 . 4 [( 4 W 10 0 . 1 4 × × = = π r P I s I = 4.8 ×10 -29 W/m² 33.13. a) 2 0 2 1 m E c I μ = , so ) W/m 10 40 . 1 )( H/m 10 4 )( m/s 10 00 . 3 ( 2 2 2 3 7 8 0 × × × = = - I c E m E m = 1.03 ×10 3 V/m b) m/s 10 3.00 V/m 10 03 . 1 8 3 × × = = c E B m m B m = 3.43 ×10 -6 T
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Q35.04. a) The lower ray reflects off the front surface. The upper ray reflects off the rear
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 2

hw19 - PHYS-1200 PHYSICS II HOMEWORK SOLUTIONS CLASS 19...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online