10-11)(6.0 x 1024) / (6.4 x 106)2 = 9.77ms-2 (b) at height 0.50 times the radius of above the Earth’s surface. g = GM / r2 = (6.67 × 10-11)(6.0 x 1024) / ( (1.5 × 6.4 x 106)2 = 4.34ms-2 Example 2: The acceleration due to gravity at the Earth’s surface is 9.80ms-2. Calculate the acceleration due to gravity on a planet which has the same density but twice the radius of Earth. g = GM / r2 gP / gE = MPrE2 / MErP2 = (4/3) π rP3rE2ρP / (4/3) π rE3rP2ρE = rP / rE = 2 Hence gP = 2 x 9.81 = 19.6ms-2
Premium Force Potential energy Energy
11.1 Distance and Displacement Choosing a Frame of Reference The motion of an object looks different to observers in different frames of reference. EX: A passenger in the rear seat of a car moving at a steady speed is at rest relative to the front seat of the car. But is not at rest relative to: the side of the road‚ a pedestrian on the corner ahead‚ or even the rotating wheels of the car. EX: Examine the figure. If you were standing under the tree‚ which object would appear to be moving
Free Force Energy Potential energy
Handbook of Formulae and Physical Constants For The Use Of Students And Examination Candidates Duplication of this material for student in-class use or for examination purposes is permitted without written approval. Approved by the Interprovincial Power Engineering Curriculum Committee and the Provincial Chief Inspectors’ Association’s Committee for the standardization of Power Engineer’s Examinations n Canada. www.powerengineering.ca Printed July 2003 Table of Contents TOPIC PAGE
Premium Orders of magnitude
Name: _ANSWER KEY_ Date: _(2012-2013)_ Date of Science Exam: __________ Period: _______ Science 8 - Semester One - Final Exam Study Guide (2012-2013) Safety and Tools 1. A fire blanket puts out a fire on a _person_‚ while a fire extinguisher puts out a flame on an_object_. 2. What tool should be used to accurately measure the volume of a liquid? _graduated cylinder_ 3. What tool should be used to handle hot materials in a classroom? _oven mitts_ The Metric System Complete the following
Premium Energy Light Electromagnetic radiation
is the force experienced by an object due to the presence of a gravitational field. This force is directly related to the strength of the gravitational field acting on an object and the mass of that object. m = mass‚ g = acceleration due to gravity m = mass‚ g = acceleration due to gravity Fg = mg Fg = mg 1.1.2 Explain that a change in gravitational energy is related to work done. Work done is the measure of how much energy is required to displace an object a specified distance
Premium Special relativity General relativity
begin your descent down the hill at 90 miles per hour‚ the fastest velocity yet. During this free fall‚ gravity is the only force acting on you‚ and you are weightless. You then use the momentum and acceleration from the previous hill to perform two loops. During these loops‚ you have centripetal force to keep you in your seat. Once out of the loops‚ the two roller coasters meet in the middle for a battle on Hoth. During this battle‚ the coasters are twisting around each other. At the conclusion
Premium NASA Roller coaster Space exploration
N09/4/PHYSI/SPM/ENG/TZ0/XX+ The time elapsed since the beginning of the universe is of the order of A. B. C. D. 108 s. 1018 s. 1028 s. 1038 s. 2. In an experiment to measure the acceleration of free fall at the surface of the Earth the following results were obtained. Acceleration of free fall / m s–2 7.69 7.70 7.69 7.68 7.70 The results are A. B. C. D. accurate and precise. inaccurate but precise. accurate but imprecise. inaccurate and imprecise. 3
Premium Potential energy Mass Energy
TABLE OF CONTENTS PREFACE 4 ACKNOWLEDGEMENT 4 ABSTRACT 5 1. ABOUT MOSER BAER STORAGE MEDIA 6 1.1. Overview 8 1. INTRODUCTION TO SPIN COATING 10 2. SPIN COATING PROCESS DESCRIPTION 11 2.1. SPIN SPEED 13 2.2. ACCELERATION 14 2.3. FUME EXHAUST 15 2.4. PROCESS TREND CHARTS 17 3. SPECIFIC PROCESS PROBLEMS 18 3.1. FILM TOO THIN 18 3.2. FILM TOO THICK 19 3.3. COMETS‚ STREAKS OR FLARES 19 3.4. SWIRL PATTERN 20 3.5. UNCOATED AREAS 20
Premium Liquid crystal display Viscosity Fluid
page – find all choices before answering. face of the table? Assume the boxes each have masses of 2.0 kg‚ the coefficient of static friction is µs between table and box‚ and the acceleration due to gravity is 10 m/s2 . 001 10.0 points A block accelerates 3 m/s2 down a plane inclined at angle 27.0◦. The acceleration of gravity is 9.81 m/s2 . 1. The force of the static friction would have a vertical component in this situation‚ and that is impossible since it must be parallel to the table
Free Force Friction
000000000000000001 1018 1015 1012 109 106 103 102 101 1 10–1 10–2 10–3 10–6 10–9 10–12 10–15 10–18 Name exa peta tera giga mega kilo hecto deka — deci centi milli micro nano pico femto atto Abbreviation E P T G M k h da — d c m m n p f a Physical Constants Acceleration due to gravity Universal gravitational constant Electron charge Speed of light Boltzmann’s constant Planck’s constant Electron rest mass Proton rest mass Neutron rest mass Coulomb’s law constant Permittivity of free space Permeability of free space
Premium Measurement