Untreated Asthma And Copd

Ultrasound Oscillation of a pendulum

v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Обычная таблица"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right: 0in; mso-para-margin-bottom: 10.0pt; mso-para-margin-left: 0in; line-height: 115%; mso-pagination: widow-orphan; font-size: 11.0pt; font-family: "Calibri", "sans-serif"; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin;-Hansen mso-font-family: Calibri; MSO -Hansen-theme-font: minor-latin; mso-fareast-language: EN-US;}

The pendulum

and s mple m is a small loop suspended by a thread in ideally ex t ensible and without weight (length " l), set in turn to a vig to horizontal at rest.

Normal /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Обычная таблица"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-Hansi-font-family: Calibri; mso-Hansi-theme-font: minor-latin; mso-Fareast-language: EN-US;} tion we will study dynamic

pendular movement. Descomponemo s strength or weight of bj eto into two components perpendicular ent re itself: direction of movement ( tangent to the curve path) and the dire ction thread. to latter component is canceled

with tension uerda c is the force applied to the thread up weight. Ra Mane that the resultant force acting on the body is the tangential component cial weight "p t ."

isochronous LAW OF PENDULUM

formulas of the period and frequency of the pendulum (5) and (6) suggest that these quantities depend only the wire length and the acceleration of gravity.

1)

The period T of a pendulum is independent and pendulum mass:

Whatever the value of the pendulum mass "m", the period "T" is constant (for the same length of thread "l" and in the same place on earth). 2) The period T of a pendulum is independent of the amplitude of the oscillation:

This is true for angles maximum oscillation " to" less than 15 °, as already cited, since for larger angles the approximation made in (7) shows differences greater than 1%. If the same spot on earth (g = constant) are measured periods of two pendulums of different lengths l

1 and 2 l _is:

If a single pendulum (l

"= constant) was measured periods of oscillation in two different points of acceleration grav age 1 g g 2, is:

v \\: * {behavior: url (# default # VML) ;} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Обычная таблица"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height: 115%; mso-pagination: widow-orphan; font-size: 11.0pt; font-family: "Calibri", "sans-serif"; mso-ascii-font-family: Calibri; mso-ascii- theme-font: minor-latin; mso-Hansi-font-family: Calibri; mso-Hansi-theme-font: minor-latin; mso-Fareast-language: EN-US;}