Materials: Safety Goggle Laboratory Apron 60-cm3 syringe with end cap 2 utility clamps Ring stand and ring Wire gauze 600-mL Beaker Thermometer inserted into spilt stopper Bunsen Burner Air pump w/ pressure gauge Balance 1 L Graduated Cylinder (or assume syringe vol. = 10mL) Pressure Bottle Syringe, 10mL, with tip cap Procedures: Part 1: Charles’ Law 1. Remove end cap of 60-cm3, fill with air to 20-cm3 2. Put the cap back on, place syringe in utility clamp *MAKE SURE IT’S SECURE* (don’t cover volume scale with cap) 4. Add 400mL of room temperature water to a 600-mL beaker 5.
The skill level for the user suggested is level 2. The Monster truck comes with waterproof electronics. The Nitro Motor consists of a Traxxas Pro.15 Nitro Powered Motor. This truck comes stock with an 11 tooth pinion gear for fast acceleration. If you want to reach higher speeds install the 23 tooth pinion gear that comes with the truck in the box.
8.3.1.4 Identify data sources, gather, process and analyse secondary information about the differing views of Volta and Galvani about animal and chemical electricity and discuss whether their different views contributed to increased understanding of electricity. Luigi Galvani was an Italian doctor and physicist. In his work, he studied the anatomy of frogs. * In 1786, he observed that the leg muscle of a dissected from twitched when it was touched by a pair of scissors during a storm. * Later he observed that a dissected frog’s leg would also twitch when the frog’s spine was touched by a scalpel while a charge generator was activated.
SPINDLETOP OILFIELD. The Spindletop oilfield, discovered on a salt dome formation south of Beaumont in eastern Jefferson County on January 10, 1901, marked the birth of the modern petroleum industry. The Gladys City Oil, Gas, and Manufacturing Company, formed in August 1892 by George W. O'Brien, George W. Carroll, Pattillo Higgins, Emma E. John, and J. F. Lanier, was the first company to drill on Spindletop Hill. Three shallow attempts, beginning in 1893 and using cable-tool drilling equipment were unsuccessful; Lanier and Higgins had left the company by 1895. Anthony F. Lucas, the leading United States expert on salt dome formations, made a lease with the Gladys City Company in 1899.
Purpose Measure the enthalpy for three reactions and to confirm the value of Hess’ law in predicting the ΔH of a reaction A) NaOH(s) NaOH(aq) B) NaOH(aq) + HCl(aq) NaCl(aq) + H2(l) C) NaOH(s) + HCl(aq) NaCl(aq) + H2O(l) Materials Styrofoam Cup Calorimeter | Forceps | Thermometer | NaOH Pellets | Graduated Cylinder | 0.50M HCL | Beaker | Magnetic Stirrer | Stirring Hot Plate | | | | Procedure Thermometers were used instead of Lob pro. (Refer to lab handout) Observations Table One: Results for Part A: Trial | Mass m / g | Temperature of H2O (±0.1°C) | | Cups | Cups, H2O, Pellets | Cups, Pellets | Initial Ti / °C | Final Tf / °C | Change ΔT / °C | 1 | 7.14g | 56.15g | 8.15g | 19.3°C | 23.0°C | 3.7°C | 2 | 7.49g | 55.17g | 8.48g | 19.4°C | 23.5°C | 4.1°C | 3 | 8.02g | 54.15g | 9.03g | 19.4°C | 23.2°C | 3.8°C | Table Two: Results for Part B: Trial | Mass m / g | Temperature of H2O (±0.05°C) | Temperature of HCl (±0.1°C) | | Cups, H2O, Pellets | Initial Ti / °C | Final Tf / °C | Final Tf / °C | 1 | 104.66g | 21.2°C | 21.1°C | 24.9°C | 2 | 103.40g | 20.2°C | 22.3°C | 24.6°C | 3 | 102.56g | 20.0°C | 22.1°C | 24.7°C | Table Three: Results for Part C: Trial | Mass m / g | Temperature of H2O and HCl (±0.1°C) | | Cups | Cups, H2O, Pellets | Cups, H2O, Pellets | Initial Ti / °C | Final Tf / °C | Change ΔT / °C | 1 | 7.41g | 104.41g | 8.41g | 20.4°C | 23.9°C | 3.5°C | 2 | 7.85g | 103.12g | 8.84g | 20.1°C | 25.0°C | 4.9°C | 3 | 8.33g | 103.01g | 7.61g | 20.2°C | 24.2°C | 4.0°C | Analysis Sample Calculations: Trial One: Part A * ΔH=mH2OcH2OΔtnNaOH * ΔH=48.00g4.18Jg-1K-13.7K0.025mol * ΔH=29694.72Jmol-1=29.69kJmol-1 Sample Calculation: Trial One: Part A: Error * Error=mH2OcH2OΔtnNaOH * Error=0.010.20.01 *
Using a spanner on the crankshaft pulley bolt I had a colleague turn the crankshaft from | |beneath the vehicle until No 8 valve was fully open, this is when the valve spring is fully compressed. Using a feeler blade of the specified | |thickness, I checked the clearance between the top of the No 1 valve stem contact face of the rocker arm. | |If I found that the clearances were not as required, I would have had to slacken the adjuster locknut, and turn the tappet adjuster screw until I | |reached the required clearance, then I would tighten the adjuster locknut while holding the adjuster screw stationary. Turning clockwise would | |reduce the clearance and anti-clockwise would increase the distance. On completion I would recheck the tappet clearance, turn the crankshaft and | |continue to check the remaining clearances, following the rule of nine.
Hass says that the stone-age hammer is now begin changes to steel hammer but the idea and the purpose remain the same .Hass(2208) support this key point of science by saying that “stone have taught us the shift in magnetic poles, and where to look for oil and metals”(p.57).Hass gives the use of the stone in politics; war, in metallurgy and in modern technology. (Hass 2008) A typical essay should ideally contain five paragraph which include an introduction with three key points and a concluding paragraph. The following essay by Hass is perfect replica of well-organized typical essay. Marius (1985) states that “you must pay attention to the thousands and thousands of details embodies of the essay and it really adds up to the essay. In the essay the statement was stated were very clear with all the necessary key points.
Its original purpose was to keep water out of ammunition cases and to make quick repairs to things like jeeps, firearms, or even aircraft. Today, in military circles, duct tape is still commonly referred to as ‘gun tape’. When World War II ended, the original army green color of duct tape changed to the classic silver, and duct tape immediately became common use for fixing ductwork in people’s houses. (This is where the name “duct tape” came from.) Nearly thirty years later, former CEO of Manico, Inc., Jack Kahl “officially” changed the name to Duck Tape® by commercializing it and giving it personality.
Robert Acker Laws 310 Project Deliverable July 20, 2014 Fracking Fracking, also known as hydraulic fracturing, hydro fracturing, fraccing, or induced hydraulic fracturing is the process of fracturing rock by a pressurized liquid. This type of operation is a well-simulation technique where a high pressure fluid, usually water mixed with sand and chemicals, is injected into a well bore in order to create small fractures in deep rock formations in order to allow natural gas, petroleum and brine to migrate to the well. The fractures are then held open by the hydraulic fracturing proppants so that the natural gas or petroleum can be recovered. (Hydraulic Fracturing. (2014, July 16).
Around the 1830’s Men began wearing hair pieces and hats to conceal baldness. Antiperspirants and deodorants came on the scene in the 1890’s, first with the use of the irritating ingredient aluminum chloride but was then replaced in the 1940’s with aluminum chlorohydrate. Also in the 1800’s, homemade shaving soaps and aftershave were made from cherry laurel water, stemming from the first safety razor patent in 1880 invented by the Kamfe brothers. But it was King Camp Gillette and William Nickerson, a Massachusetts Institute of Technology engineer design the first T-razor with disposable blades. In 1903, Gillette sold only 51 razors and 168 blades, but in 1904, after a marketing campaign he sold 90,000 razors and 123,000 blades.