Technical Measurement and Vector

6. If an object is 4.5 cm long, what would its length be in mm?

7. If you walk 6.00 m, N and 5.00 m E, what is your final location

4. Connect the Newton Scale to the cart and then drag the cart up the ramp, across the 30cm difference at a steady rate.

First, we will set up the force table. The table comes in three separate pieces the base, stand and table once we connect and fasten all three parts we must use a circular level to make sure the table is balanced. If the force table isn’t balanced then we must adjust the base’s feet to the appropriate levels on each leg till the bubble on the level is centered. We must then assign where the positive & negative x, y axis are on the force table as a point of reference and label them with tape .Then for part I we must apply 1.96 N in the positive x – direction, and 2.94 N in the positive y-direction then we must balance the two with a third force and record the magnitude and direction of it and a draw a diagram showing all three forces. Part II

7.71m (Length) * 7.06m (Depth) * 3.64m (Height) = Area of room minus sloping bit or 198.134664meters3.

Load acts over outer circumference of on end of the cylinder, while the other end remains against a

a) As the tension is increased (without changing anything else), does the number of segments increase or decrease?

Normal force is the force the surface exerts on an object and since the hanger was not on the ground the normal force is 0. The normal force is mgcosθ because if the surface was flat the normal force would be equal to the force of the object (mg), but since the wooden block was on an inclined plane I had to account for the angle. To find the coefficient of friction I first found the tension in the string. I did this by using the top equation. Sine the Fn is 0 I was left with tension (Fy) minus the mass of the hanger times gravity = mass times acceleration (Fy - mg = ma). I knew that the hanger was moving at constant speed, so the acceleration was 0. Since the acceleration was zero I was left with tension minus the mass of the hanger times gravity(9.8) which means the tension equals the mass of the hanger times gravity ( Fy = 9.8 x .037 Tension = .363N).

The magnitude of the forces exerted in the horizontal and vertical directions can be calculated using trigonometry. The total magnitude of the force multiplied by the cosine of its angle with the horizon will calculate the horizontal force. Conversely, the total magnitude of the force multiplied by the sine of its angle with the horizon will calculate the vertical force.

Step 9: Because we measured the lengths in centimeters rather than meters, we need to calculate are ‘g’ value into m/s2 so we can compare it to the SI unit for acceleration due to gravity. (Eg. 981.4/100 = 9.81 m/s2)

As a result of trail and error method we find the angle for the third pulley and the mass that should had be suspended from it. This will balance the forces deployed on the strings due to the other two masses. While the third force is defined as the equilibrant (������⃗������) Since it is the force that establishes the equilibrium. It is also the negative of the resultant -������⃗������ = ������⃗������ = ������⃗ ������ + ������⃗������. We gathered and recorded the mass and the angle required for the third pulley to enable to put the system into the equilibrium in table 1.

In this experiment, we experimented finding the fundamental quantities of length, mass, and time using many laboratory tools. We used a Vernier caliper, stopwatch, rulerm meter stick, wooden block, metal block, Dial-o-gram, different masses, and circular objects. We took into consideration the uncertainties of many different tools and objects into our experiment. The inherent uncertainties of different measurements and ways to propagate those uncertainties were learned during this experiment.

Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence, the objective is to establish a relationship between the length of a cantilever, which may give some insight into the physics of cantilevers.

However this is not the same for the beam of light fired from the laser pointer. This is because light is an electromagnetic wave that is independent of the motion of its starting point. It will always travel at 299,792,458 m/s because light’s speed only depends on the medium through which it travels and the motion of the object it is created from is completely irrelevant. (Lieber, Lillian R. The Einstein Theory of Relativity. Philadelphia: Paul Dry, 2008. Print. p. 4-37)( Einstein, Albert, and Robert W. Lawson. Relativity; the Special and General Theory,. New York: H. Holt and, 1920. 21-25. Print.)

Table 1 & 2: First, find the mass of the wooden block and record the data. Then place the wooden block on the inclined plane (at 0o) with the wide side down. The height of the pulley should be the same height as the screw location on the wooden block. Then hang a weight on the opposite side of the hanger and add weights until block starts to move with a constant velocity (push block to overcome fs¬). Then record the resulted weight of the hanger in Table 1 (as F). Add 500 g to the wooden block and repeat the process. Replace 500 g with 1 kg on the wooden block. Repeat the process described above.