Since the plastic container had a greater amount of GPE when rolled from a higher starting ramp, this was converted to a greater amount of kinetic, or moving, energy when rolling down the ramp. So, with the tallest starting ramp height, the plastic container had the the most kinetic energy. Due to having the greatest amount of kinetic energy, it had the most moving inertia, or momentum in the middle at the bottom. Newton 's first law states that a body at rest stays at rest and s body in motion stays in motion unless after upon by an unbalanced force (inertia). In this case, the unbalanced force is rolling friction, and it always stayed the same throughout this experiment.
The results of this experiment support our hypothesis that a two-foot vertical jump did indeed generate a greater amount of impulse. However, we based our hypothesis on the assumption that a one-foot vertical jump would produce a lower amount of force in comparison to a two-footed jump on the basis of muscle use. Interestingly enough, that was not exactly the case. The average amount of force produced in a two-foot jump was 777.76 N, whereas a one-foot jump actually produced an average force of 889.38 N (Table 1 &2). However, when looking at the maximum force of both trials, the two-footed trial did in fact have the greatest applied force, which we had hypothesized.
The second reason is that the nonmetals have smaller atomic sizes making it easy to attract electrons but difficult to pull them away. 12. A lot of energy is required to break a strong intermolecular bond. This is because atoms in certain compounds have very strong bonds that require energy to break. This explains why some compounds have higher boiling points than others.
If the thickness of metal wall stays the same then larger cans are easier to crush. So assuming the thickness of the watermelon rind is about the same for small versus large melons it makes sense that the rubber bands have less leverage. Also, the more you stretch a rubber band the more force it exerts. If the circumference of the big melon is twice that of the small one the same rubber band squeezes about twice as hard when stretched over the larger one. A combination of leverage and higher force makes the big melon take fewer bands to split.
AIM: To model diffusion in a practical form and investigate the effect of surface area to volume ratio. HYPOTHESIS: It is hypothesised the smaller the cube the quicker and bigger the rate of diffusion will be and with a larger cube there will be a smaller percentage of diffusion due to its bigger volume. VARIABLES: There are independent variables, dependent variables, and controls. the one that is being tested and the one that is the inconsistent variable in the Independent variable like the volume and surface area of the agar cubes. The variable that is kept consistent is the dependent variable such as the percentage of diffusion of pigment in the agar cubes.
Clothoid loop is a loop that has a small radius at the top and a larger radius at the bottom. Velocity can’t be changed easily because it is a function of the height of the carriage, but by changing the radius of the loop, smaller loop at the top of the loop means smaller velocity will help to produce a greater acceleration since when r decreases, a increases(ac=v²/r). As the carriage ascend the loop, the carriage’s velocity would be smaller therefore it would begin to slow down because increase in height would decrease kinetic energy and velocity. Which means that the carriage will have a larger velocity when it enters and leaves the loop and a smaller velocity when the carriage is at the top of the loop. No matter where the carriage is, the carriages’ centripetal acceleration will always be in the direction towards the center of the circle except that when the carriage is at the bottom of the loop the acceleration is in the upward direction while when the carriage reaches the top of the loop it is in the downward direction.
2001). One of the useful additions of the recent paper is that is also includes a CD containing the results (Bergmann 2001). The importance of the torsional moment in the transverse plane is again emphasized, with the author also stating that the other two components of the total moment are specific to the definition of the centre of rotation and are also of little significance. The average peak magnitude of the resultant hip contact force was approximately 238% BW for walking at a speed of 4km/h. The –Fy component, which causes much of the implant torque is larger when going upstairs than for level walking.
An intubation difficulty score (IDS) of greater than 2 was not observed in any patient. Group-T had significantly lower mean IDS compared to group-M, thus suggesting easier intubation with the Truview evo2 laryngoscope. On analysis of our results we found that this difference in IDS between the two groups was attributed to mainly two parameters out of the total seven i.e. N4 and N5 which are CL grade and lifting force respectively. Better glottic exposure was observed and lesser lifting force was required during laryngoscopy and intubation with the Truview evo2 laryngoscope than the Macintosh laryngoscope.
longitudinal studies a person want to study a sequence of event then they would go with this one. Cross-sectional studies would be used in general because it done more quickly than longitudinal studies,but the most reliable would be longitudinal studies because of its broad study with sequence of events.Longitudinal studies strengths are extending time which is a benefit. Also, this study separates real trends from chance occurrence. Another strength is Useful for charting growth and development..Some weakness of Longitudinal studies is it too time consuming. Also this study cost to much.Another weakness is Control effects repeated interviewing of the same sample influences their behaviour.
The gravitational pull was greater in the water can than it was in the empty can because the weights were different. In the can that held that water, when it was balancing, the water was being pushed to that corner, making that side heavier, causing it to easily
The second lane in the gel contained the -/- allele and had its band at about 641bp, lower than the +/+ allele in lane 1. Since the +/+ has extra stretches of DNA, it should have a larger mass which makes it progress more slowly through the gel compared to the -/- allele which has less base pairs. The third lane contained the +/- sample, and after running the gel the lane had two different bands. This sample is heterozygous as it contained both alleles and thus had one band at about 941 base pairs and another band at about 641 base pairs. Lane four contained the negative control which only contained the cocktail mixture with water.
1. The potential errors for body mass index (BMI) is that the measurement does not separate how much weight is fat or lean body mass. For example, a muscular person could have a higher BMI but more muscle mass and could be falsely described as obese. Some potential errors in a waist to hip ratio depends on the individual. An individual may be pear shaped, which are people that have a larger hip compared to waist.
The Four stroke has good long lasting parts however they are more expensive. The two stroke parts are more easily to break or wear but are much cheaper than the four stroke. The two stroke also has a simpler process than the four stroke which is much more complicated. This means that replacing any parts that break or mess up will be easier to fix yourself unlike the four stroke. The reason that the two stroke is faster is because of the revolutions.
First, the bullets were different. The “Minie Ball” was less accurate and harder to load. Though, to the other bullets before, it was more accurate and better. They were circular bullets that traveled in the air less further and less accurate. The bullets used now are narrower at the tip and that causes them to be more accurate in the air and they travel further in distance.
Intermediate nodes, when overloaded, drop packets and hence the number of dropped packets is the largest compared to the other modes. Mode 1 gives the best performances is due to the fact that the sources distribute their flows on all available paths from the beginning hence reducing the probability of overloaded queues. However, it is observed that mode 3 tries to balance the load of a congested path on the other paths does not succeed in reducing the drop rate when compared to a simpler approach such as mode 2, at least for small network