Courtney‚ Ashley Abstract: Determine the acceleration due to gravity using a pendulum. Introduction: A simple pendulum consists of a mass suspended by a length of string. When set Oscillating‚ the mass will have a period “T” given by the following equation. This equation shows the only variables that affect the rate at which the pendulum swings is the length “l” that is measured to the center of the object’s mass and the acceleration due to gravity “g”. By rearranging this expression it s
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was to acquaint the students with basic laboratory procedures‚ methods‚ and techniques; to introduce the use of basic laboratory measuring devices; to demonstrate different methods of manipulation of numerical quantities. DENSITY AND SPECIFIC GRAVITY Materials and Methods Part 1: Density of an Unknown Solid 1. We first were asked from our laboratory instructor to attain an unknown solid and were asked to note down the number of the solid. 2. Determine the mass of the unknown solid
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Population decrease of African penguins Spheniscus demersus due to human disturbances The African penguin also known as the black-footed penguin‚ is an endangered species confined to the area of south-western Africa. The African penguin is placed in the genus Spheniscus which is derived from a Greek word meaning “wedge”. The species name demersus is also derived from a Greek word that means “plunging”. African penguins are highly distributed around the nutrient rich and cold waters of the Benguela
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Lab II‚ Problem 3: Projectile Motion and Velocity Oct. 06‚ 2013 Physics 1301W‚ Professor: Hanany‚ TA: Vladimir Abstract A ball is tossed obliquely. The vectors of position and velocity are measured. The acceleration is calculated. Introduction A toy company is now making an instructional videotape on how to predict the position. Therefore‚ in order to make the prediction accurate‚ how the horizontal and vertical components of a ball’s position as it flies through the air should
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promotion activity on raising awareness on drink spiking and sexual assault. It will discuss the health needs assessment of a target group and identify current local or national health policies. It will also discuss the approach used in the implementation of the activity and discuss the role of the health promoter and how this activity can be carried out in practice. Hurley et al. (2006) cited in McBrierty et al. (2013) defined drugs-facilitated sexual assault (DFSA) as a sexual activity that occurs
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Is global warming due to human actions? Introduction Global warming refers to the increase in the average temperature of both the earth’s near surface air and the oceans. The temperature increase began in mid twentieth century and is predicted to continue into the future. For example‚ during the last hundred years ending in 2005‚ the earth’s surface air temperature has increased drastically (Thomas‚ C. D‚ 2004). Basically‚ global warming is the recent increase in the average air and ocean
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Ryan Feldmann U.S History‚ 1st hour 2/21/2013 Leisure activities of the Progressive/Gilded era During 1894‚ through 1915‚ Americans began to have more leisure time than their predecessors.* The main reason for this was industrial employers decreased working hours‚ and cut the work time on Saturdays in half.* Vacations began to be offered to workers as a gift from their employers‚ although most vacations at this time were unpaid. The workers soon became overworked. During the time of shortened
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February 25‚ 2013 Lab: Equilibrium of Forces Purpose/Objective: The objective of this lab was to test the first condition of equilibrium for a set of concurrent coplanar forces‚ prove Lami’s Theorem‚ and to determine an unknown mass using rules of equilibrium. Procedure: In the lab‚ we wanted to find at what angles three separate weights would create a net zero force on a force table so that the ring holding the weights was exactly centered in the middle
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Physics Lab LR Tuesday 8-9:55 Due 02/26/15 Experiment #1 Free Fall Experiment Abstract In this experiment we studied the motion of an object in free fall‚ that is an object being dropped from a certain height to Earth’s surface. In this experiment we tested the idea that no matter what the size‚ shape‚ color‚ etc. of the object if it would still experience the same constant acceleration throughout its fall (short distance). The constant downward acceleration it experiences is due to Earth’s
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force on the projectile is gravity. With gravity being a presence and a factor in our everyday lives and in this experiment‚ gravity will push down on the projectile forcing it back down to the ground. For example if someone shot a cannon straight and there was no gravity then the cannon would keep traveling at a constant speed‚ go farther and travel in a straight line. Note this is Newtons first law about motion‚ an object in motion will stay in motion. Now if gravity is involved with the cannon
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