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Scientific Notation, Metric System, & Unit Conversion ...

Physics 151 Scientific Notation, Metric System, & Unit Conversion Review worksheet Scientific Notation 1. Rewrite the following numbers in Scientific notation, in simplest form. Include units. Use appropriate significant figures! a. Altitude of summit of Mt. Ka ala (highest point on O ahu): 4020 ft = b. Altitude of summit of Mauna Kea: 13,796 ft = c. Thickness of a human hair: cm = d. Wavelength of reddish light: m = e. Height of your instructor: m = f. Number of galaxies in the universe: 1 trillion galaxies = g. Age of the universe in seconds: 430,000,000,000,000,000 s = h. Volume of a hydrogen atom: 000 000 000 000 000 000 000 621 cm3 = 2. Calculate the following, and write your answer to each in Scientific notation. Try to do (a) (i) first without the aid of your calculator, then check your answers by redoing them with your calculator. Assume that parts (a) (h) contain exact numbers with infinite precision; for parts (i) (n), express only the appropriate number of significant figures in your final answer.

Scientific Notation, Metric System, & Unit Conversion Review Worksheet SOLUTIONS 1. a. 4.02 × 103 ft (or 4.020; it is unclear whether the final zero is significant) b. 1.3796 × 104 ft c. 1.5 × 10–2 cm d. 7 × 10–7 m e. 1.80 m (this is the same as writing 1.80 × 100 m) f. 1 × 1012 galaxies (or simply: 1012 galaxies) g. 4.3 × 1017 s (or 4.30, or 4.300, etc., although there are probably ...

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Transcription of Scientific Notation, Metric System, & Unit Conversion ...

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Powers of 10 & Scientific Notation

www.phys.hawaii.edu

convert from scientific notation to “standard” notation, add/subtract the standard numbers, and then convert back. As an example, let’s add the 2007 federal deficit ($354 billion) to the 2006 federal debt ($8.51 trillion). We must convert them both to some mutually convenient exponential power (here, let’s choose 12) before adding:

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Physics 121C Mechanics - University of Hawaiʻi

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• The gyroscope does not fall down! Gyroscopic Motion • The gyroscope precesses around its pivot axis ! • This rather odd phenomenon can be understood by using the vector character of : ω pivot. Gyroscopic Motion • The magnitude of the torque about the pivot is

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Powers of 10 & Scientific Notation - Department of Physics ...

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(2) it is compact, with no extra, unnecessary zeroes that are confusing to read and cumbersome to write; (3) it conveniently tells you at a glance that the number is of the same order of magnitude as 103 (a thousand). Note: Scientists and engineers sometimes break rules (1) and (2) in order to make the power n a multiple of 3; i.e., we favor the powers 103, 106, 109, 1012, 10–3, 10–6, 10 ...

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ANTENNA INTRODUCTION / BASICS Rules of Thumb

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Antenna Radiation Pattern N 2 ... The angle 2 is the angle from the center (maximum) of the radiation pattern to the first null. The null-to-null beam width is 2 2. Generally, we are intereste d in the half-power (3 dB) beamwidth. It turns out that this beamwidth is approximately

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Physics 121C Mechanics - University of Hawaiʻi

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A solid object resists the action of another force which compresses it with what we call the normal force. The normal force always acts outward and perpendicular to the surface of the compressed object. The symbol for the normal force is n.

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POWER DENSITY - University of Hawaiʻi

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2 3 4 5 6 8 a b c.000001.01 100.00001.1 1000 2 3 4 5 6 8 2 3 4 5 6 8 2 3 4 5 6 8 2 3 4 5 6 8.0001 1.0 10,000.001 10 100,000.01 100 1,000,000 0.1 1000 10,000,000

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Physics 274 (Sp03) Final Exam Study Guide (Chapts 39, 40 ...

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The cosmic microwave background radiation is (Read sect 41-8, especially pgs 1330-31) a) radiation from the quasars that is redshifted. b) produced from processes going on all over the present universe. c) radiation from the Sun. d) radiation from the Big Bang that was around when electons and protons conbined to form neutral hydrogen atoms. !

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RECEIVER SENSITIVITY / NOISE

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Table 2. Sample Noise Power Values (kToB) Bandwidth Bandwidth Ratio (dB) Watts dBW dBm 1 Hz 0 4x10-21-204 -174 1 kHz 30 4x10-18-174 -144 1 MHz 60 4x10-15-144 -114 1 GHz 90 4x10-12-114 -84 NOISE POWER, kT oB Thermal noise is spread more or less uniformly ov er the entire frequency spectrum. Therefore the amount of noise

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POWER DIVIDERS AND DIRECTIONAL COUPLERS

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The frequency range for coaxial couplers specified by manufacturers is that of the coupling arm. The main ... Multiple quarter-wavelength coupling sections are used to obtai n wide frequency bandwidth directional couplers. Typically this type of directional coupler is designed to a frequency bandwidth ratio and a maximum coupling ripple within th e

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Maxwell’s Equations (integral form)

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Faraday’s Law Electrical effects from changing B field Ampere’s Law Magnetic effects from current ∫ ⋅ B dA =0 r r ε0 Q ∫ ⋅ E dA = r r dt d ∫ ⋅ E dlB r r Maxwell’s Equations (integral form) ∫ ⋅ = μ 0 B dl i r There is a serious asymmetry. Needs to be modified.

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