'Unit area' diaporamas de présentation

Basics of spectroscopy

Basics of spectroscopy. Andrew Sheinis AAO Head of Instrumentation. Some questions:. What are the parts of a spectrograph Why are spectrographs so big? What sets the sensitivity? How do I estimate the exposure time?. Some questions:. What are the parts of a spectrograph

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Wireless Mobile Platform OAEP Lessons, Progress, and Future Work

Wireless Mobile Platform OAEP Lessons, Progress, and Future Work. David Wagner UC Berkeley. Platform Innovations. TinyOS 1.1 New release processes. acoustic. ultrasound. mag. dot. Integrating Midterm Demo Enhancements. TinyOS improvements Better radio stack (Chipcon CC1000)

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MA 242.003

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Lecture 6 Isostasy , mountains, and the asthenosphere

Lecture 6 Isostasy , mountains, and the asthenosphere. Earth elevation is bimodal. Elevation km. Lhasa, Tibet 3.7 km in elevation. 200-300 My. Great unconformity. 1.4 Gy. Sandia Mountains New Mexico, USA. PRESSURE = FORCE per UNIT AREA P = Force/Area Force = mass x acceleration

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Bouyancy

Bouyancy. Bouyancy. What is a force?. What is a force? A push or a pull. What is density?. What is density?. Density. What is pressure?. What is pressure?. Pressure. Pressure. What is pressure in a fluid?. Weight of fluid overhead per unit area.

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Lesson 1

Lesson 1. density. The ratio of the mass of a substance to its volume (mass divided by volume). Lesson 2. pitch. a description of how a sound is perceived as high or low depends on the frequency of the sound wave. Lesson 2. loudness. perception of the energy of a sound. Lesson 2.

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Light

Light. Light travels in a straight line. It will not bend around corners Nor will it travel through your hand. Objects that do not allow light to travel through are called OPAQUE What are some examples that you can think of??. When light hits an opaque object, a shadow is created.

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4.1.1 Biodiversity

4.1.1 Biodiversity. The amount of biological diversity per unit area. It includes: genetic, habitat and species diversity. Biodiversity. Is the total number of genetic characteristics of a specific species. Genetic Diversity.

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MAGNETIC fIELD

MAGNETIC fIELD. 6.1 Magnetic Field. Define magnetic field. Identify magnetic field sources. Sketch the magnetic field lines. Magnetic Field. A region around a magnet where a magnetic force can be experienced. A stationary electric charge is surrounded by an electric field only.

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Ch. 11 Forces in Fluids

Ch. 11 Forces in Fluids. Pressure. Pressure -force per unit area on a surface Unit of measurement: pascal (Pa): 1 N/m 2 A fluid is any substance that can easily flow -liquids and gases. Fluid Pressure. The particles of a fluid are in constant motion

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Intensity

Intensity. The pressure wave creates a force on a slice of air. Wave amplitude s 0 Pressure amplitude p 0 The amplitudes are related by frequency and wavenumber. Force to Pressure. A. P. P + D P. D x. magnitudes from harmonic waves. Intensity is the power per unit area.

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Chapter 21.2 Studying Populations

Chapter 21.2 Studying Populations. Determining Population Size. Direct Observation count all the members Indirect Observation observe signs (nests) Sampling measure a small area and then multiply to find the number in a larger area Mark and Recapture. Changes in Population Size.

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Geosfer

Geosfer. Geography. Geosphere. Spatial Approach. Ecological Approach. Regional Complex Approach. Geographic Space. Extent Dimension. Location Dimension . Density Dimension. Succession Dimension. lenght , area, volume. specificity of place. quality/ unit area.

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Pressure

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A photon in light beam A has twice the energy of one in light beam B. The ratio of ? A / ? B of the wavelengths is:

0 of 250. 30. A photon in light beam A has twice the energy of one in light beam B. The ratio of ? A / ? B of the wavelengths is:. 1/2 1/4 1 2 4.

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Experiment to find which causes the most damage to your floor: An adult African elephant or a skinny supermodel in heels

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Bed Shear stress

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April 10 Fluid Pressure

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April 10 Fluid Pressure

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