Effect of Muscle Length on Contraction 1. Dependent Variable is the contraction force. 2. Independent Variable is the muscle fiber length 3. Controlled Variables are the stimulation voltage, temp, and freq of stimulation.
There are precise definitions of these words in the technical world. In this section we will learning more about strain, strain equation and different types of strain. There are basically two types of stress acting in nature Normal stress: It is a type of stress experienced when elastic restoring force or deforming force acts normal to the surface area. They are of two types - Tensile and compression stress. If there is an increase in the length or
Determine the muscles affected and what nerve(s) may be involved. Answer: The muscle is the levator muscle : the major muscle responsible for elevating the upper eyelid. responsible for elevating the upper eyelid. The nerve involved is the oculomotor nerve: the nerve that stimulates the levator muscle. 9.
Controlled Variables... frequency of stimulation, temperature, stimulation voltage Effect of Stimulation Frequency on Contraction 1. Dependent Variable.. contraction force 2. Independent Variable... frequency of stimulation 3. Controlled Variables.. temperature, stimulation voltage, 4. What structure was stimulated to cause a muscle contraction?
We make an Internal Representation (I/R) of thatevent. That I/R of the event combines with a physiology and creates a state. "State" refers to the internal emotional state of the individual – ahappy state, asad state, a motivated state, and so on. Our I/R includes our internal pictures,sounds and dialogue, and our feelings (for example, whether we feel motivated,challenged, pleased, excited, and so on). A given state is the result of thecombination of an internal representation and a physiology.
The value of the force constant for the spring is most nearly (A) 0.33 N/m (B) 0.66 N/m (C) 6.6 N/m (D) 33 N/m (E) 66 N/m 4. A block of weight W is pulled along a horizontal surface at constant speed v by a force F, which acts at an angle of with the horizontal, as shown above. The normal force exerted on the block by the surface has magnitude (A) W F cos (B) WFsin (C) W (D) W + Fsin (E) W + Fcos 5. When the frictionless system shown above is accelerated by an applied force of magnitude the tension in the string between the blocks is (A) 2F (B) F (C) F (D) F (E) F 6. A push broom of mass m is pushed across a rough horizontal floor by a force of magnitude T directed at angle as shown above.
It has a set of rules. You can compete in a large group, as a soloist or in a duet or trio as well. Dancing requires strength, endurance, agility, dedication, skill, co-ordination and your body must be in top condition. You could hurt yourself in dancing just as easily as you can clap your hands together, yet most people do not recognize it as a sport. According to The Farlex Dictionary the word sport is defined as: Physical activity that is governed by a set of rules or customs and often engaged in competitively.
The spring represents the elastic components of the muscle and obeys Hook’s law : F=k*x but in terms of stress the equation turns into : σ=Ε*ε where σ: applied stress, E:Young's Modulus of the material ε: strain. The dashpot represents the viscous components of the muscle and is expressed in differential form by Newton’s law for straight,parallel and uniform flow: σ=η* where η: viscosity and :change of rate of strain (velocity). The important equations that are used in this model are: F=F1+F0 where F0=k0*u and F1=η1*u1=k1*u1’ u=u1+u1’ After long calculations we finally take the differential equation of motion for a standard linear solid: The equation contains F, df/dt ,u ,du/dt functions as well as k0,k1,η constants and is impossible to solve as they are all unknown. For that reason we will use the experimental data from Bobsbooms given paper that will help understand how our functions are supposed to behave during the experiment and thus be able to extract some data and some important initial and boundary conditions, necessary for our model to work. From the Bobsbooms paper ‘Passive transverse mechanical properties of skeletal muscle in compression’ we are supposed to take the ramp and hold data (u versus t graph) and fit it in our model,expecting that our F versus t
Dance is very competitive and involves a lot of motivation to be good, just like other sports. Dance is in fact a sport, every sport has a coach right? Well… Dance has a coach too! Most people think that dance is just an activity that you do for fun and that sports actually works hard and isn’t a fun activity, it is a hard game. Well... Dance is very hard to do, Football and dance are a lot like each other, they both leap… one leap has pointed toes and the other is leaping over someone to get in the end zone.
1 of 22 Investigation of Deflection of a Cantilever vs. Length of a Cantilever Research Question How does the length of a cantilever affect the deflection of that cantilever when loaded with a constant mass? Introduction The purpose of this lab is to investigate the deflection of a cantilever. In this investigation, I chose to measure the effect of the length of a cantilever on its deflection when loaded with a constant mass because I knew from prior experience that there was some relationship between the two variables. The objective of this investigation is therefore to establish a relationship between the length of a cantilever and its deflection in the aforementioned situation, which may give some insight into the physics of cantilevers.