initial push‚ it will swing back and forth at a constant amplitude. Real pendulums are subject to friction and air drag‚ so the amplitude of their swings declines. Pendulum Animation of a pendulum showing forces acting on the bob: the tension T in the rod and the gravitational force mg. Animation of a pendulum showing the velocity and acceleration vectors. Contents [hide] 1 Period of oscillation 2 Compound pendulum 3 History 3.1 1602: Galileo’s
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the height of the bob at the top of the swing = Where h is the maximum height of the bob g is the acceleration due to gravity APPARATUS Passport force sensor Passport USB link Computer equipped with Data Studio software Horizontal rod Support stand 100 gram mass Thread Ruler Procedure The centripetal force of the pendulum bob at its lowest point is determined here using the force sensor. 1. The
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statesman. As a scientist‚ he was a major figure in the American Enlightenment and the history of physics for his discoveries and theories regarding electricity. One of his contributions was the lighting rod. The lightning rod was designed to be mounted to the outside wall of the house. One end of the rod would point high up into the sky; the other end would be attached to a cable. This cable would lead down to the ground where it would be buried very deep. The cable was to transmit the electric charge
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composition of the substance. The change in color‚ formation of a gas or a solid product‚ and the production of energy are the evidences of a chemical reaction‚ thus‚ of a chemical change. Materials Crucible tongs Evaporating dish Glass rod Test tubes Test tube rack Thermometer Analytical balance Magnesium ribbon pH paper 1M copper (II) sulfate Iron metal 6M hydrochloric acid Procedure Magnesium and oxygen test A small strip of magnesium metal is held on one
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to make those cars even faster‚ build the engine up‚ weight reductions‚ turbo‚ nitrous etc. After that went on for a while someone came up with the idea to come up with a drag racing club. Back then the fastest cars were the Hot rods and Hence the name National Hot Rod Association. So they had to stick with the name‚ and now we have anywhere from a Twelve second class to the Top fuel class which run with no mechanical failures normally under 3.5
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After reading what Jean Sutton has to say about relationships‚ I think Jean Sutton wouldn’t believe in “love at first sight”. because of the situation of her mother she had her thought on the idea of love and partner‚ because her mother said don’t end up like her had made her believe more on her life in life and never putting everything on a men to support her. Which had Jean Sutton not able to believe on love at first sight‚ but to choice her partner using her brain more than her heart. Sutton
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found in MyOMLab) Show your work! 1. (12 points) Suppose that a metal rod is supposed to be cut 31.5 mm. in length. The upper spec limit is set at 32.0 mm.‚ and the lower spec limit set at 31.0 mm. A metal rod that is out of spec must be scrapped at a cost of $20.00. The company uses the Taguchi Quality Loss Function to estimate quality costs. Suppose that a sample of 4 units was taken‚ and the rod measurements were: 31.6‚ 31.8‚ 31.1‚ and 32.0 mm.‚ respectively. a. Bob believes
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measurements on a local standard (a gage block) to determine the overall instrument error‚ Obtain repeated measurements of an extruded rod and report its diameter within a specified probability. Procedure: Material/ Equipment Gage block (0.150 inch) Digital caliper 500-196-20‚ SN 94636852428‚ Res 0.0005 Mechanic micrometer 293-761-10‚ SN 4102288‚ Res 0.0001 Aluminum rod: -ASTMB221-6061T6511-35435-0 Microsoft Excel‚ computer 045667-01541 1. Note model numbers and any available serial numbers
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shown in table and flow chart form. Table 1: biochemical Test Results Test | Purpose | Reagents | Observations | Results | Gram stain | To determine the Gram reaction of the bacterium | Crystal violet‚ Iodine‚ Alcohol‚ Sarasin | Pink rod | Gram-negative rods | Carbohydrate (Glucose) fermentation | To determine the ability of a bacterium to fremnet a carbohydrate‚ make acid or gas | Durham tube | Color change from red to yellow‚ bubble in Durham tube | Positive carbohydrate fermentation‚ acid
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or media color change. This media is often used to differentiate between groups of organisms with the same morphology and biochemical resemblances. Eosin Methylene Blue (EMB) is an example that can be used to differentiate between various Gram (-) rods of the intestinal tract. Escherichia coli and other enteric bacteria are able to ferment. Lactose fermentation results in a colony color change ranging from pink to purple. Determination of oxygen requirements is a test to determine whether a microbe
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