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(a) What frequency is received by a person watching an oncoming ambulance moving at 110

College Physics for AP® Courses | 1st Edition | ISBN: 9781938168932 | Authors: Gregg Wolfe, Irina Lyublinskaya, Douglas Ingram ISBN: 9781938168932 372

Solution for problem 30 Chapter 17

College Physics for AP® Courses | 1st Edition

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College Physics for AP® Courses | 1st Edition | ISBN: 9781938168932 | Authors: Gregg Wolfe, Irina Lyublinskaya, Douglas Ingram

College Physics for AP® Courses | 1st Edition

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Problem 30

(a) What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and emitting a steady 800-Hz sound from its siren? The speed of sound on this day is 345 m/s. (b) What frequency does she receive after the ambulance has passed?

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PHYSICAL GEOGRAPHY Our Place in Space Big Bang Theory: The Universe emerged from a singular, enormously dense mass about 14 billion years ago. Evidence: 1) the most distant star clusters are moving away from us at a greater speed than those that are closer, and 2) amount of cosmic microwave background radiation is uniform throughout the universe – leftover energy from an early period of rapid expansion Galaxy: largest definable unit within the universe (ex. Milky Way is our galaxy) Oblate spheroid: The Earth is not a perfect circle. It bulges at the Equator, and flattened at the poles The bulge is caused by a centrifugal force Sun angle: angle at which the sun’s rays strike Earth’s surface Relatively high at low latitudes, more intense solar radiation Subsolar point: Point on Earth where the sun angle is 90 degrees; solar radiation strikes the surface more directly. Rays are perpendicular to the surface. Migrates between the Tropic of Cancer and Tropic of Capricorn over a course of a year. Perihelion: Point of the Earth’s orbit where the Earth to Sun distance is about 147 million km. Aphelion: Point where Earth is farthest from the Sun about 152 million km. Axis: an imaginary line. Extends through the center of Earth from pole to pole. It’s tilted at 23.5 degrees. Earth rotates on its axis, resulting in day/night cycle. Circle of Illumination: The boundary between day and night. During the rotation, one half of the earth is illuminated International Date Line: The begi

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Chapter 17, Problem 30 is Solved
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Textbook: College Physics for AP® Courses
Edition: 1
Author: Gregg Wolfe, Irina Lyublinskaya, Douglas Ingram
ISBN: 9781938168932

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(a) What frequency is received by a person watching an oncoming ambulance moving at 110