no displacement‚ then he has done no work. The mathematical equation of work is W=F_II*∆x‚ where F represents the magnitude of the force vector that is parallel to the displacement vector‚ being delta x. Once the wrestler changes his stance‚ his potential energy is converted into kinetic energy and after this‚ he is experiencing energy in motion or kinetic energy while his is driving his opponent to the mat. The displacement that this causes results in work being done in Joules. Furthermore‚ the wrestler
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I. INTRODUCTION Objective I.1 Define psychology: the science of behavior and mental processes. |Margin Learning Question(s) (if applicable) |Page(s) | |None | | Key Terms Psychology: the science of behavior and mental processes. Exercises 1. Put a check mark
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TITLE Habituation of snail. OBJECTIVE To investigate the effect of habituation of snails to a stimulus To develope certain experiment skills‚ such as working safely‚ producing valid results‚ recording results and drawing valid conclusions from results. INTRODUCTION The snails Figure 1: Garden snail Taken from http://abugblog.blogspot.com/2011/05/handsome-snail.html Snails are one of the earliest known types of animals
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Exercise 3: Neurophysiology of Nerve Impulses: Activity 7: The Action Potential: Conduction Velocity Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. An action potential can be propagated along an axon because there are __________ channels in the membrane. You correctly answered: d. voltage-gated 2. The units of conduction velocity are You correctly answered: d. meters/second. 3. Which of the following will affect axonal conduction velocity? You correctly
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contract___ d. AV Bundle (Bundle of His) _link between atria and ventricles__ e. Bundle Branches __convey impulses down the interventricular septum___ f. Purkinje Fibers ___convey the depolarization throughout the ventricular walls_____ 4. The action potentials spread from the autorhythmic cells of the intrinsic conduction system (electrical event) to the _contractile__ cells. The resulting mechanical events cause a heartbeat. 5. A tracing of the electrical activity of the heart is called a/an __electrocardiogram__
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Application of Energy ------------------------------------------------- Forms of energy Main article: Forms of energy Energy exists in many forms: Heat‚ a form of energy‚ is partly potential energy and partly kinetic energy. In the context of physical sciences‚ several forms of energy have been defined. These include: * Thermal energy‚ thermal energy in transit is called heat * Chemical energy * Electric energy * Radiant energy‚ the energy of electromagnetic radiation *
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answer: a. increasing the stimulus frequency (the rate of stimulus delivery to the muscle). 4. Wave summation increases the force produced in the muscle. Another way to increase the force produced by a muscle is to Your answer : a. slow action potential propagation down the motor neurons that innervate the muscle. Correct answer: d. increase the number of activated motor units. 010/03/13 page 1 Experiment Results Predict Question: Predict Question 1: As the stimulus frequency increases
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SPECIAL SENSES GENERAL PRESENTATION Overview of the Nervous System • Endocrine and nervous systems maintain internal coordination – Endocrine system: communicates by means of chemical messengers (hormones) secreted into to the blood – Nervous system: employs electrical and chemical means to send messages from cell to cell 12-2 Overview of the Nervous System • Nervous system carries out its task in three basic steps • Sense organs receive information about changes in the body and external environment
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Step 1: The hand holding the the weight in the pendulum will release the weight and allow it to swing forward to hit the car. This is potential energy by the force of motion of the weight on the pendulum. Potential energy is the energy an object produces due to its position. The pendulum swinging is it being in motion therefore it has kinetic energy. The force shown form this could be Applied Force. Applied force is a force that is applied to an object by a person or another object. Step 2: After
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insulation wrapped around the axon of some neurons‚ which increases the rate at which nerve impulses travel along the axon. 5. Terminal Branches of the Axon: junctions with other cells that releases chemicals called neurotransmitters. 6. Action Potential (here also describe threshold): level of stimulation received when a neuron is in its resting state and it determines if an electrical signal or neural impulse will be created or not. If the threshold is met‚ the neural impulse will form and be
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