71°C 3. Determine the mass of the water by using the water’s density (specific to the initial temperature) and the volume of the water. Remember‚ density =mass/volume. You can look up the density of the water at your specific temperature at http://www.ncsu.edu/chemistry/resource/H2Odensity_vp.html. (5 points) Density =mass/volume. Density of water according to NCSU: 0.9972995 g/mL Volume of water: 75.0 g/mL Find mass: Mass = Density * Volume Mass = 0.9972995 g/mL * 75.0
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1. A Little About Buoyancy o In order to understand how a boat can float in water we must first go over one of the principles behind such a feat: buoyancy. This principle in physics was discovered by the mathematician Archimedes about 2‚000 years ago‚ so it has been taught and understood for some time now. The basics of buoyancy involve the relationship between the weight of the object in question‚ in this case a boat‚ and the weight of the water it displaces. If the object weighs more than the
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Newtons. English (now American) system Feet‚ pounds (mass)‚ seconds‚ pounds (force) cgs system Density The density of a substance is defined as its mass divided by a unit volume ρ=M/V where ρ=density M=mass V=volume In the SI system the base unit for density is kg/m^3‚ whereas in the American engineering system density is commonly expressed as (lb_M)/(ft^3 ) (lb_M=pounds(mass)). Density of water SI system: 1 x 103kg/m3 = 1 g/cm3 American engineering system: 62.4 lbM/ft3.
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In the pasted years population has been growing rapidly in MEDC’s and LEDC’s‚ by looking at the crude birth rate and crude death rate we are able to see how the population grows in certain countries. Looking at how high the rates are in a LEDC country and a MEDC country‚ you are able to conclude that you can relate specific factors to different areas of the world. When looking at the population growth of a LEDC there are common factors that appear when looking at the death and birth rates. For
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Heidi Duncan 11/24/13 Exothermic and Endothermic Reactions Lab The purpose of this lab is to observe how heat is released or absorbed with different chemicals. Data Table 1 – HCI and NaOH Trial 1 Trial 2 Avg Volume 1.0 M HCI(ml) 25 25 - Volume1.0 M NaOH (ml) 25 25 - Ti of HCI before mixing 20 20 - Ti of NaOH before mixing( 20 20 - Average Ti before mixing( 20 20 - Tf of mixture ) 26 26 - T ) 6 6 - Specific Heat (J/g) 4.184 4.184 - Heat‚ q (J) 1255.2
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2. The mass of the package would be 2 kilograms. 3. The mass of the package would stay the same. 4. The volume of this object would be 80cm3. 5. The volume of the object would be 22mL and 22cm3 6. Density relates to volume and mass. 7. The density of this object would be 5g/cm3 8. The density of a material will always be the same because it’s the same material just in a smaller ratio. 9a. This mystery substance must be water. 9b. The mystery substance must be granite. 9c. the volume of 10
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Mechanical Equivalent of Heat (Joule’s Law) by Electrical Method 12 (3) Determination of the Melting Point of a Solid Material ------------------------------------------ 15 (4) Determination of the Specific Gravity using Archimedes Principle and Density Bottle --- 18 (5) Speed of Sound in Air -------------------------------------------------------------------------------------- 29 (6) The Simple Pendulum ------------------------------------------------------------------------------------- 31 (7)
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exact approximation of quantity as in cars by fuel meters what we get an idea of whether tank is full‚ empty‚ half full etc. The liquid level detector and optimizer play an important role in tanks to indicate the level of liquid of a particular density. In this paper we have proposed a technique to measure the amount of liquid available in tank. This device digitally displays the level of liquid inside the tanks using load sensor. The measurements are taken so the accuracy level is of 96.36%-98%
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"Cartesian" is named after the French mathematician and philosopher Rene Descartes‚ who lived from 1596 until 1650. Cartesian diver lab is used commonly in scientific experiments to illustrate principle of buoyancy. The objective of this Cartesian diver lab is to demonstrate Pascal ’s law and Archimedes ’ principles. Observation is the key to conduct this experimental study of the Cartesian diver. First a 2-liter bottle is filled with water to almost all the way to the top‚ then prepare the diver
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Experiment #1 Title: Physical and chemical changes‚ and measurements in the metric system Name: Goh Kian Shen Lecturer: Dr. Anne Kee Hooi Ling Section: Chemistry 107A Date lab was performed: 17 January 2013 Aim: The aim of the experiment is to understand physical and chemical changes of
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