This will cause skew in the results if not kept level. Type of surface – air track Will be controlled by using the air track to reduce friction. Furthermore, the same setting of the air track will be used to make sure they have the same friction for each trial. Friction acts in the direction opposing motion. As friction increases, the acceleration decreases, causing negative skew in the results.
He came up with two types of friction; static friction, which is the friction, which is present when the object is stationary and kinetic friction, this type of friction is present when the object is moving. Static friction is greater than kinetic friction. Kinetic friction is the type we are going to be investigating. Kinetic friction occurs when the surfaces of the two objects move against each other. Even if the surface appears completely smooth there will always be minute bumps and lumps on it.
The magnetic force (in the +zdirection) is qvd By. The current density Jx is in the +x-direction. In the steady state, when the forces qEz and qvdBy are equal in magnitude and opposite in direction, This confirms that when q is positive, Ez is negative. The current density Jx is Eliminating vd between these equations, we find (T10.1) Note that this result (as well as the entire derivation) is valid for both positive and negative q. When q is negative, Ez is positive, and conversely.
At a microscopic level, all surfaces are rough, and when they slide against each other, there is a resistance to slide that needs to be overcome by the application of a force. This force is called the force of friction. It can be either static or kinetic. It is static when the force acts on a stationary object, and is kinetic when it acts on a moving object. An important aspect of the force of friction is the amount of resistance offered the surface under consideration.
Momentum Conservation Principle: The law of momentum conservation tells us that in the collision between 2 objects in an isolated system, the momentum of the two objects before the collision is the same to the momentum after the collision. This means that (2) the amount of momentum that object 2 gained is equal to the amount of momentum that object 1 lost. This statement tells us that the total momentum of colliding objects is conserved. This tells us that momentum is a unchanging value. The Logic Behind Momentum Conservation: In a collision between two objects, object 1 and object 2, the forces acting between the two objects are equal in magnitude but opposite and direction.
1. Retentivity - It is defined as the ability of the material to retain a certain amount of residual magnetism when the magnetizing force is removed (the magnitude of flux density at a point b on the hysteresis curve). 2. Coercivity - It is termed as the amount of reverse magnetic field to be applied to a magnetic material to reduce the magnetic flux back to zero (the value of ‘H’ at point ‘c’ on the hysteresis curve). 3.
Owing to the velocity difference between the rotating tool and the stationary work piece, the mechanical interaction produces heat by means of frictional work and material plastic deformation. On one side of the tool the rotational direction is same as that of the tool travel direction, it is referred to as ‘advancing side’ and the other side is referred to as ‘retreating side’,[1-4].FSW involves complex interactions within thermo mechanical process. These interactions affect the heating and the cooling rates, plastic deformation, flow, and dynamic recrystallization .Different aspects of numerical analysis of FSW are achievable regarding micro structural study, material, heat flow and heat generation. The thermo mechanical process under the tool results in different micro structural regions
Lab #5: Gravitational Acceleration Preparation: In preparation for the first part of this lab involving the Atwood's machine our team started by discussing the effects of the masses on the results of the machine as requested in question 1 of the lab manual. We believe that if the two masses were equal there would be no motion of either of them when released. However we believed that if the two masses were not equal, the heavier mass would fall downward pulling the lighter mass upwards. Below as requested by question 2 is a free body diagram of both situations Masses Equal Masses Unequal The tension on mass 1 is equal to the tension in mass 2 due to the same string attaching both masses and is shown mathematically above in the section where the masses are equal. In the second part gravity is solved for.
With this information we could then accurately determine the mass of the electron. The force F acting upon a charge that is moving with a velocity v perpendicular to the magnetic field B is This force is centripetal. These forces cause the electron to move in a circular path. The centrifugal force of reaction of the electron is equal in magnitude to the force on the electron by the magnetic field. Therefore the following equation is valid for this experiment.
Factors Determining the Stopping Distance of Rollers Down a Ramp Theory- ------- When the roller is rolling down the slope then potential energy is converted to kinetic energy that converts into heat energy. MGH = Â½MVsquared The loss of kinetic energy on the carpet is â€¦. Â½MVsquared = braking force x braking distance thereforeâ€¦. Â½Mvsquared = F x so MGH = F x [IMAGE] If m, g and f are constant thenâ€¦. [IMAGE] However if G is constant thenâ€¦.