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Monday, January 6, 2014

Determine

Lab 2:Determination of g by the lean Ball Method Objective: In this laboratory we obstruct determine the set down surrender acceleration unvaried ascribable to sobriety g Introduction: When an goal is in free fall, it is accelerated towards the center of the earth due to the blackjack of gravity acting upon it. We experience this e very day when we walk and adopt on our planet. The acceleration of an purpose in free fall near the surface of the earth has a constant respect of approximately 9.8 meters / sec 2. In this lab experiment, we go away cartridge holder the fall of an object through certain known distances and darn this distance observed as a function of eon. We know, from the equations of motion, that for an object released from rest, the distance cover at any time t is given by: D = ½ g t 2 By do observations of both distance and time, we can determine the constant g (called little g). In this lab we commit a simple st eel hunk dropping frame-up. This is shown in the pictorial matter which goes along with this lab. An electromagnet holds the wind in place until the time for it to drop. A computer will measure the time it takes for the ball to travelling a certain distance that we set. The measure starts when a put down beam is broken at the top of the balls itinerary and concludes when a bottom light beam is break off.
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Photocells pick up the interrupted light beams and tell the computer when to start and embarrass timing. So the computer is really like a very right stopwatch. sort 1 shows an approximate sk etch of the apparatus: [pic] Figur! e 1: Free-fall apparatus Procedure: We will start with a small distance first. We will set the bottom photoelectrical cell at 0.1 meters (10 cm) down from the top photocell. As currently as the current through the electromagnet is broken, by a switch, the ball will drop triggering the top photocell to start the timing. The timing clams when the bottom photocell beam is broken. We will campaigning cardinal trials for every distance and record...If you want to get a luxuriant essay, order it on our website: OrderCustomPaper.com

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