Quietly Plotting The normal ups and downs of life mean that everyone feels sad or has "the blues" from time to time. But if emptiness and despair have taken hold of a person’s life and won’t go away‚ they may have depression. Depression is an illness that involves the body‚ mood and thoughts. Depression affects the way a person eats and sleeps‚ feels about themselves‚ and the way they think of the things around them. On October 2‚ 2010‚ my cousin committed suicide due to this illness. Most of us
Premium Suicide Bipolar disorder Suffering
Acid Base Titration Purpose: The purpose is to calculate the molarity of a NaOH solution by titrating the base with 5mL of standard HCl solution in each trial. By adding the base with unknown molarity to the acid with 0.10M the molarity of NaOH can be calculated. The base‚ NaOH‚ helps bring the pH of the acid‚ HCl‚ closer to seven‚ which neutralizes it. When using the buret the amount of NaOH used is able to be determined. Then by writing a balanced chemical equation and using the titration
Premium Titration Sodium hydroxide Acid
simple mechanisms used to convert rotary motion into oscillating linear motion and vice-versa. The first of these is the slider-crank - a mechanism widely used in engines to convert the linear thrust of the pistons into useful rotary motion. In this lab we will measure the acceleration of the piston of a lawn mower engine at various speeds. The results exemplify a simple relation between speed and acceleration for kinematically restricted motions‚ which will discover. An adjustable slider-crank apparatus
Premium Internal combustion engine Classical mechanics Crankshaft
Coulomb’s Law Purpose: The purpose of this lab was to demonstrate that the force between two stationary charges is directly proportional to the product of the charges and inversely to the square of the distance between them. Coulomb’s law tells us that the force between two charges depends (1) linearly on the strength of each charge‚ and (2) inversely on the square of the distance between them. Mathematically we would write this as . Procedures Part1 Begin by removing the right side
Premium Electric charge
This lab has introduced the use of daphnia‚ pill bugs‚ amoeba and Uglena. We the AP Biology students were first introduced to the test subjects to test his or her capability of handling living organisms for upcoming science experiments. The AP Biology students were asked to create original experiments for all test subjects testing reactions to gravity‚ light intensity and reaction to food. Daphnia‚ or Daphnia magna‚ are microscopic organisms in which the students created an original lab to test
Premium Cell Microorganism Bacteria
the period of oscillations to the length of the pendulum.Sources of error for this procedure included precision in both length and time measurement tools‚ reaction time of the stopwatch holder‚ and the accuracy of the stopwatch with respect to the lab atomic clock. The final result of g takes into account the correction for the error introduced using the approximation. There are opportunities to correct for the effects of mass distribution‚ air buoyancy and damping‚ and string stretching[1]. Our results
Premium Regression analysis Measurement Normal distribution
# Now You See It – Copper Cycle Lab The purpose of the lab is to discover what happens when someone executes a series of procedures‚ beginning with copper metal. What is done | What is observed | 1. Started with copper‚ Cu (s). | reddish‚ brownish‚ orange-ish‚ powder-like | 2. Added nitric acid‚ HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water‚ H2O (l). | stayed the same | 4. Added sodium hydroxide‚ NaOH (aq). | changed consistency‚ gel-like | 5. Heated the
Premium Sulfuric acid Copper Zinc
Pipetting‚ weighing‚ accuracy and plotting Introduction The aim of this experiment was to determine the density of water and‚ of unknown solutions‚ by being as accurate as possible‚ by pipetting and weighing the solutions. Density if defined as “The mass per unit volume of substance; common unitg cm-3” (Lewis. R and Evans. W.‚ 2011). As the density is an intensive property of all matter it depends on temperature and pressure. “The density of a mixture may also depend on its composition” (Nedelsky
Premium
to a variable-frequency ac supply‚ which can maintain a constant air-gap flux in the motor by an inverter. 2.3 Synchronous speed When the balanced three-phase currents flow through three-phase stator windings of the motor‚ a rotating magnetic field or magnetic motive force (mmf) is produced. The speed of the rotating mmf is called the synchronous speed and it depends on the supply frequency and the number of the poles in the motor‚ as shown in equation 1. [pic]
Premium Alternating current Electric motor Induction motor
LSM1102 Lab Report Introduction Transformation is a process which involves plasmid DNA being bound to the cell surface and the subsequent uptake of DNA by the cell (Panja et al.‚ 2008). For artificial transformation of E. coli cells with plasmids‚ plasmid DNA has to be extracted from bacterial cells using the High-Speed Plasmid Mini Kit‚ which is then mixed with competent E. coli cells followed by heat shock and the streaking of transformed cells on two different types of agar plate (LB and LB+ampicillin)
Premium Plasmid Transformation Escherichia coli