Hypothesis: I expected that the high-density Polethene would sustain more weight than the low density Polethene before braking for many reasons. Firstly, the high-density Polythene has many more monomers in the same area of plastic surface. The denser plastic the longer it will stretch before breaking. The Low-density Polethene has fewer monomers than the high density plastic and therefore has fewer bonds that can move more easily and can be stretched more freely. Another reason I believe that the low-density Polythene will break first is because the monomers are in straight lines and the high-density polymers overlap giving the material more strength.
Results: | | Tension (N) | a (experimental) | a (theoretical) | 0.05 | 0.05 | 0.49 | 0 | 0 | 0.05 | 0.1 | 0.65 | 3.24 | 3.27 | 0.1 | 0.15 | 1.18 | 2.07 | 1.96 | 0.1 | 0.2 | 1.31 | 3.43 | 3.27 | Analysis/Discussion: The results show that the greater the ratio of mass, the acceleration will be also greater. The hypothesis was found to be true. When both masses are the same, the acceleration (both theoretical and experimental) are indeed zero. As the ratio of the masses increased, so did the acceleration. The tension got bigger as the
This process is shown clearly in my model due to the fact that it states that the atom gets the energy to carry out this process from the instability of itself. Also, an electron labeled with a “-“ is illustrated to be released from orbit to demonstrate that
The seatbelt attempts to increase the time that it takes for the mass to come to a stop and hopefully saving it.! ! How it works! The seatbelt is a length of tough fabric that goes across the body from shoulder to hip or across the waist like a belt. The latter one is less effective as it simply holds the body in place and does not do much to stop the torso area.
b. Latitude Higher latitude, more effect from the CF which means larger deviation, however opposite for the lower latitudes. 8. Why do upper-level winds in the middle latitudes of
Newton’s second law is: Force equals mass times acceleration F = m x a (1) On earth all mass accelerates downward toward the center of earth at 9.8 meters per second. Force is a vector and the direction must also be known. If two equal forces pull on a rope in opposite directions the rope will not move as the forces balance each other out, similar to what would happen in a “tug of war” game with equal forces on both sides. The main purpose of this experiment was to see if we could obtain a zero sum, equilibrium for a series of forces using measured direction by angle and measured weight so that forces equalized each other and added to zero. To determine vertical direction we used this equation for vertical distance.
Because the ball is constantly moving it is constantly changing direction and therefore it’s constantly changing velocity. This means even if the speed is constant the velocity is always changing. When the object has enough momentum, it is launched into the air an optimum angle to go high enough to travel far in the time it’s in the air, but not so that it just travels straight upward and not horizontally. It doesn’t matter what athletic event it is, as the analysis of the circular motion is the same. Newton’s three laws describe the relationship between force, mass and acceleration.
In addition, the initial and final velocities due to the short range setting were smaller in comparison to the initial and final velocities due to the short range setting. Since no external forces are acting at the instant of the collision, momentum for these inelastic collisions is conserved. However, the kinetic energy loss was almost the same for both settings-96.1% for short range, 99.2% for long range). This is because kinetic energy is not conserved in inelastic collisions. Discussion: In this experiment, a spring trigger launches a steel ball, acquiring a certain initial velocity.
Two strokes are known for their screaming power in the top end. The two stroke is only dominant in the top end and racing in the bottom end is not an option. They are much lighter than four stokes and are best used for freestyle with this advantage. The maintenance for these two bikes come with advantages and disadvantages, such as the fuel cost for the two stoke. The fuel for the two stroke needs an oil mixture in order for it to run properly.
Years after his death Physicist Isaac Newton (1642-1727) used these laws to help him develop his law of universal gravitation. The law of Universal Gravitation states that: "every particle in the Universe attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them" (Serway 424). This essential means that the force of gravity increases the larger the masses are and decreases the farther away the masses are. The formula to determine the the magnitude of the gravitational force is: Fg = G (M1M2)/R^2 G is the Universal Gravitational Constant, M1 and M2 is the mass of the two objects and R is the distance between them. On Earth the force of gravity causes all objects to accelerate at 9.8m/s^2.