1013-Part 1 - WELCOME TO PH 1013 Studies show that people...

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1 WELCOME TO PH 1013 ! Studies show that people who know physics live longer than people who don’t know. (A friendly reminder from Vladimir Tsifrinovich)
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2 My Coordinates [email protected] RH 316B 3473 Office hours: Monday, Wednesday 4:30 pm Textbook: Giancoli, “Physics for Scientists and Engineers”, 4 th Edition, vol. 1.
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3 OUR SECTIONS: B’s Main website: my.poly.edu PH1013: Mechanics Syllabus and Schedule Webassign instruction Equation sheet Old exams Dr. Tsifrinovich course material: Lecture Notes
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4 4 Components 1. Lectures (Monday and Wednesday 3- 4:25 pm) 2. 1.5-hour midterm exam (30% of the grade) and three-hour final (40% of the grade) 3. Recitations (Friday) 15-min. quiz ( 25% of theoretical grade) Texas Instruments TI-30, 34 or 36 series
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5 4. Homework (5% of the grade) HW website: webassign.net Electronic submission If you have any problems with HW website, you should e-mail to: [email protected] [email protected]
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6 PH 1013 Classical Mechanics (Vector algebra) The laws of motion of macroscopic solid objects (speed is small compare to the speed of light) (Archimedes, Newton 18 th century)
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7 Base Quantities in Mechanics time, length, mass (Time is what keeps everything from happening at once.) (Length is what keeps everything from being at the same point.) (Mass is what puzzles people of all times) Angle?
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8 SYSTEM OF MEASUREMENT 1960: “Systeme International” (SI) Standard SI units in mechanics: Second (s) : 9,192,631,770 cycles of microwave radiation from the cesium-133 atom Meter (m) : distance traveled by light in vacuum in 1/299,792,458 second Kilogram (kg): mass of the special metallic cylinder kept in France Radian?
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9 Derived Quantities Derived units Equations Example x = cos(π/3) (angle in radians) Example: x = 2t 2 – 3t + 4 (x in m, t in s) Example: x = 2cos(4t) (x in m, t in s)
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10 PREFIXES femto (f) = 10 -15 kilo (k) = 10 3 pico (p) = 10 -12 mega (M) = 10 6 nano (n) = 10 -9 giga (G) = 10 9 micro ( μ ) = 10 -6 tera (T) = 10 12 milli (m) = 10 -3 peta (P) = 10 15 [centimeter (cm) = 10 -2 m]
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11 CASTOMARY UNITS in = 2.54 cm, ft = 12 in (0.305 m) yd = 3 ft (0.914 m), mi = 1760 yd (1.61 km) min = 60 s, hour = 3600 s, day = 24 h (8.64x10 4 s), year = 365 days
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12 L = 10 -3 m 3 gal = 3.786 L metric ton (t) = 1000 kg lb-mass ≈ 0.454 kg Atomic mass unit: u = 1.66x10 -27 kg 180 0 = π rad Conversion factor
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13 Motion of a point-like particle Straight-line motion (along the x-axis) Time interval: t = t 2 – t 1 Distance traveled: s Average speed = s/ t Position (relative to the origin) x Displacement in the x-direction: x = x 2 – x 1 Average velocity = x/ t
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