Based on the prompt above‚ “You are going to test your body’s ability to maintain homeostasis. You will test this by monitoring a person in your group’s breathing rate‚ heart rate‚ and qualitative observations” we devised a hypothesis which states that if a person exercises‚ his/her heart rate‚ breathing rate and sweat (qualitative observation) will increase in order for our bodies to maintain homeostasis and control our bodily functions. Based on our experiment we found that in Trial 1 the heart
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ratio called‚ respiratory exchange rate‚ or RER. An RER of 0.7 means that carbohydrates are being used for fuel‚ and a ratio of 1.0 means that only fatty acids are being used for fuel; of course‚ values can fall between. Methods: To observe the effects of prolonged exercise on the metabolic system the lab subject needed to walk on the treadmill at a rate that kept his heart rate at 60% of his maximum. The
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Determining the natural frequency of a system undergoing tortional vibration. Theory : Using Newton’s second law of tortional system. ( [pic] …………………. ( Equation 1 ) where Io = mass moment of inertia of the disk Hence‚ [pic] ……..……... ( Equation 2 ) where k = torsional stiffness of the shaft Rearrange Equation 2 ( [pic] .………..……... ( Equation 3 ) where natural frequency of the system‚ [pic] …..…….…..…….
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software is used to manage the measurement data and provide graphical representation of the bar forces. The software features a comprehensive help function. The various elements of the experiment are clearly laid-out and housed securely in a storage system. The complete experimental set-up is arranged in the frame SE 112. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. Learning Objectives / Experiments - Measurement of
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Inorganic Chemistry 1. A subatomic particle with a single positive electrical charge is protons. 2. A subatomic particle with a single negative electrical charge is electrons. 3. A subatomic particle which is electrically neutral is neutrons. 4. The nucleus of an atom is made up of _protons_ and _neutrons. 5. The number of electrons forming a charge cloud around the nucleus is (pick one of the following) greater than; equal to; smaller than the number of protons in the nucleus of the atom.
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Tanya Hicks Anatomy & Physiology Respiratory Assignment. ! 1.) The control center inside of the brain is called the medulla oblongata. Our breathing is controlled by the level of carbon dioxide that we have in our blood. The pons sends out a signal from the medulla to the diaphragm to activate. The diaphragm is also sent a a signal from the phoenic nerve‚ that comes from the cervical plexus in the spinal cord. This makes the diaphragm contract and flatten and increases the space inside of the thoracic
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Photochemistry. The fundamental principles for understanding photochemical transformations are that light must be absorbed by a compound in order for a photochemical reaction to take place‚ and that for each photon of light absorbed by a chemical system only one molecule is activated for subsequent reaction. This "photo equivalence law" was derived by Albert Einstein during his development of the quantum (photon) theory of light. Absorption of visible and/or ultraviolet light by a molecule transfers
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end. The water flow rate through the pipe can be measured using the volumetric tank (or measuring cylinder) of a Hydraulics Bench. Velocity of the water can therefore be determined to allow for the calculation of Reynolds’ number. A dye injection system is installed on top of the header tank so that flow pattern in the pipe can be visualised. In this experiment‚ we fix the time which is 5 second to collect the amount of the water. At the same time‚ we also observe the characteristic of the flow whether
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The Path of Respiratory Therapy Introduction About a year ago‚ I came home from work one night and walked into the kitchen to where my mother was standing. There was a feeling of uneasiness and the panic began to clench my stomach. She looked so sad‚ so stressed; maybe it was the frizzy hair‚ the bags beneath her eyes‚ the way her back slouched in a low negative curve‚ or her eyes. Her eyes looked at me before she turned them away‚ but in that fragment of a second‚ it’s almost like I could look
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Abstract: The Enzyme Lab results where when the liver was frozen‚ its reaction was fast‚ and when it was hot‚ it was slow‚ and the liver that was at room temperature reacted slowly to medium. Introduction: The Enzyme Lab is to conduct investigations to determine the most favorable conditions for the most efficient enzyme activity. Variables to be used testing include temperature‚ pH values and surface area. Enzymes are proteins that speed up the rate of chemical reactions‚ which would otherwise
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