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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.

The surface of the Earth is an infinite flat plane, or a 2. The surface of the Earth is (nearly) spherical. For a bigger challenge: similarly devise a test for each of the following two scientific hypotheses. (Thought question: How do we even know today, with modern technology, that they are true?) b. The Earth spins. c.

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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:

  Subtract

Physics 121C Mechanics - University of Hawaiʻi

www.phys.hawaii.edu

• 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

  Fall

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

www.phys.hawaii.edu

(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 ...

  Physics

ANTENNA INTRODUCTION / BASICS Rules of Thumb

www.phys.hawaii.edu

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

  Introduction, Basics, Beam, Antenna, Antenna introduction basics

Physics 121C Mechanics - University of Hawaiʻi

www.phys.hawaii.edu

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.

  Sisters

POWER DENSITY - University of Hawaiʻi

www.phys.hawaii.edu

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

  University

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

www.phys.hawaii.edu

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. !

  Cosmic, Background, Microwave, The cosmic microwave background

RECEIVER SENSITIVITY / NOISE

www.phys.hawaii.edu

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

  Noise, Frequency

POWER DIVIDERS AND DIRECTIONAL COUPLERS

www.phys.hawaii.edu

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

  Types, Directional, Coaxial, Coupler, Directional couplers, Coaxial couplers

Maxwell’s Equations (integral form)

www.phys.hawaii.edu

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.

  Equations, S equations

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PHYSICAL SETTING EARTH SCIENCE - nysedregents.org

www.nysedregents.org

Earth (1) orbits the Sun (2) has a nearly spherical shape (3) is tilted on an axis (4) spins on an axis 6 How many days during one year is the Sun directly overhead at noon in New York City? (1) one (3) three (2) two (4) zero 7 Approximately which percentage of Earth’s surface is exposed above water? (1) 30% (3) 70% (2) 50% (4) 90%

  Earth, Spherical, Nysedregents

LAPLACE’S EQUATION IN SPHERICAL COORDINATES

www.dslavsk.sites.luc.edu

We can write the Laplacian in spherical coordinates as: ( ) sin 1 (sin ) sin 1 ( ) 1 2 2 2 2 2 2 2 2 θ θ φ θ θ θ ∂ ∂ + ∂ ∂ ∂ ∂ + ∂ ∂ ∂ ∂ ∇ = V r V r r V r r r V (2) where θ is the polar angle measured down from the north pole, and φ is the azimuthal angle, analogous to longitude in earth measuring coordinates. (In ...

  Earth, Spherical

3 Vorticity, Circulation and Potential Vorticity. 3.1 ...

www.columbia.edu

or spherical coordinates. In such a situation the relative vorticity is a vector pointing in the radial direction and the component of the planetary vorticity that is important is the component pointing in the radial direction which can be shown to be equal to f = 2Ωsinφ. So, when examining horizontal motion on the Earth’s surface we have

  Earth, Spherical

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