Linear Motion In One Dimension Lab Report Example | Topics and Well Written Essays - 500 words

Linear Motion In One Dimension - Lab Report Example All freely falling objects experience a downward acceleration. Using the symbol g to represent such special acceleration, the value increases with decreasing altitude. The value of g is around 9.8 m/sec2 at the earth’s surface. Because friction is neglected and the assumption is made that the free fall is not dependent on altitude over short distances, the motion of the freely falling objects is equal to the motion in a single dimension under constant acceleration thus making it possible to apply constant acceleration equations. The recorded coefficient r values are both close to 1 indicating that the plotted points are closer to the experimental values. As per the recorded values, the increasing x values had a positive gradient whereas the decreasing x values had a negative gradient. Therefore, it is true that X increases at a constant rate with time, hence equation 1 is justified The velocity after the bounce was higher because of the impulsive force exerted on the glider at the track’s end. Again, the recorded value of acceleration is reasonable because the velocity is reversed at the track’s end meaning there was a moment when no acceleration is acting on the glider. In the inclined track, the glider was observed to move under a constant acceleration before or after bouncing and this is in harmony with equation 1 which states distance has a direct proportion to the square of time. The slope of velocity against time line matched the previously calculated acceleration value. The slopes of the velocity time graphs in the inclined track with the six blocks also matched the earlier on calculated acceleration value. The trend observed in the all the three cases validates the linear motion equations. An analysis of the drawn graph gives acceleration values that are consistent proving that constant acceleration equations can be used in describing linear motion in one

Circumstantial Evidence Within The Casey Anthony Trial Research Paper

Circumstantial Evidence Within The Casey Anthony Trial - Research Paper Example did not merit proving the case of intended murder of Caylee beyond reasonable doubt, it is evident that the prosecutors had adduced evidence that had sufficiently served the principle of ‘reasonable doubt’ as a requirement of the law (Sarokin, 2011). Circumstantial Evidence is the important piece of evidence in criminal cases prosecution, owing to the fact that only a small percentage of crimes would be executed out of existing direct evidence. If all cases were to depend on direct evidence where a witness was present when the accused committed a crime, only a meager criminal file cases would even pass for trial (Fanning, 2009). After all, what would hinder the defendant denying being involved even when the witness still witnessed the crime being committed? In this respect, Circumstantial Evidence is vital for criminal trial, since it provides for the relevant pathway through which reasoning can be applied, so at to reach to a conclusion regarding how the crime was committed. The Casey Anthony Trial appears to have deduced sufficient circumstantial evidence, only that it was not executed properly. First, false testimony that Casey gave to the law enforcement officers when they set on investigating the case is sufficient to indicate that the defendant was determined to obstruct the course of justice (Ashton & Pulitzer, 2012). Despite the fact that reasonable doubt as a basis of determining the guilty or not guilty verdict for the accused is a necessity, nothing could be more indicative of the fact that the defendant must have known something about the death of Caylee than the false statements. Therefore, Casey was lying so that she could obstruct the law enforcement officers from being able to conduct a fruitful investigation. Casey had lied to her mother that Caylee was either with a nanny, in the beach, in the house and a host of other places for the whole time that her grandmother was asking for whereabouts (Russell & Cohn, 2013). Additionally, Casey lied