Tides and Tidal Forces and The Doppler Effect.

Chapter 3

Exercise 1

a ) Vs 60 mph (96560 .64 m (3600 s 26 .8224 m /s

b ) fa fs (V (V - Vs (300 Hz [ (343 (343 - 26 .8224 )] (300 Hz [ (343 (316 .1776 )] (300 Hz (1 .0848 325 .45 Hz

c ) Vs V[1 - (fs /fa )] (343 m /s [1 - (300 Hz /350 Hz )] (343 m /s (1 - 0 .8571 (343 m /s (0 .1429 49 m /s

d ) fa fs (V (V Vs (300 Hz [ (343 (343 49 )] (300 Hz (343 /392 (300 Hz

(0 .875 262 .5 Hz

Exercise 2 (nm

Red 4 .41 680

Orange 4 .88 614

Yellow 5 .28 568 .18

Green 5 .87 511 .07

Blue 6 .42 467 .28

Violet 7 .43 403 Exercise 3

v /c ?0 (nm ) x1 (nm ) x2 (nm ?a (nm (v /c )measured difference

-0 .020 400 7604 4105 349 .9 -0 .12525 -516 .5

-0 .080 400 7634 4398 323 .6 -0 .191 -855 Exercise 4

Stars Observed (angstrom ) vc (km /s ) vs (km /s Difference

Canopus 6563 .30 20 .56 20 .5 -0 .29

Arcturus 6562 .74 -5 .02 -5 .2 3 .46

Alpha Centauri 6562 .36 -22 .38 -22 .3 -0 .36

Vega 6562 .55 -13 .7 -13 .9 1 .44 Chapter 6

Exercise 1

a ) 177 .3484

b ) 0 .454

c ) the tidal force caused by the moon is greater than that of the sun because moon is relatively closer to the earth than that of the sun

Exercise 2

a ) spring tide

neap tide

b ) new moon

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yu labeled x and y , the roche limit of a body x with regards to y is dependent of their densities . If the density of x increases the roche limit decreases . If the density of y increases the roche limit increases . If the both densities increase at the same rate the roche limit will remain the same...