Repeat steps 1-5 for the cord and elastic band 6. Determine the spring constant of each object by graphing F v. Δx for linear springs. If the graph does not appear linear, graph F v. Δx raised to the appropriate constant Part 2: 1. Predict the velocity of the spring when displaced at 0.02, 0.04, 0.06, 0.08, 0.10 meters, using the spring constant derived from part 1 2. Secure the spring to the stand 3.
Using this equation I can determine the cooling time constant for the block of steel. Observations: Below you will find the data obtained from the experiment as well as the excess temperature I calculated. Time in min Actual Temperature of Block of Steel ° C Excess Temperature in ° C 0 153 128 1 133.4 108.4 2 116.7 91.7 3 102.6 77.6 4 90.7 65.7 5 80.6 55.6 6 72.1 47.1 7 64.9 39.9 8 58.7 33.7 9 53.6 28.6 10 49.2 24.2 11 45.5 20.5 12 42.3 17.3 13 39.7 14.7 14 37.4 12.4 15 35.5 10.5 16 33.9 8.9 17 32.5 7.5 18 31.4 6.4 19 30.4 5.4 20 29.6 4.6 Chart
Finally, we analyze the errors in both parts of the lab by propagation by substitution and compare the theoretical-experimental values using errors. III. Results: The theoretical buoyant forces for the sphere, the small cylinder, the block, and the big cylinder are 0.297N, 0.131N, 0.369N, and
Physics 1408 Section E1 Standing Waves in a Vibrating Wire Callie K Partner: Miguel E Date Performed: March 20, 2012 TA: Raziyeh Y Abstract This lab had two purposes. The first was to determine the relationship between the length of a stretched wire and the frequencies at which resonance occurs. The second was to study the relationship between the frequency of vibration and the tension and linear mass density of the wire. In the first part we found the resonance, frequency and wavelength of a wire and used this data to calculate the speed of the traveling waves. For first harmonic, our wavelength was 1.200 m, found by the formula λ=2L/n.
When air is used to cool down the water, radiation effect, conduction and convection effect, and also evaporation effect would occur. The saturation pressure corresponding with the surface temperature is the vapour pressure at the liquid surface. This evaporation process in an enclosed space shall continue until the air is saturated and its temperature equals to the surface. Results in this experiment are identified with the understanding of thermodynamic properties, and calculated by using the specific enthalpy and specific heat capacity, Dalton’s and Gibbs Law, the formula of humidity and saturation, and also the steady flow energy equation. Cooling towers, which are introduced as one of the direct contact heat
PK-S Lab 03 – Lab Report Name: ____________________ Section: ___________________ EXPERIMENT 3: Trigonometric Measurements Procedures: 1. Experimental measurement of the angles and sides of a right triangle: A. Create a triangle by taping a string against a wall and taping the bottom of the string to the floor or a table set against the wall. Make sure that the wall is perpendicular to the floor or table by measuring angle C, which should be 90o. B.
Speed of Sound A. Objective The objective of this laboratory was to measure the speed at which sound was traveling through the air, using the resonance of longitudical waves. B. Equipment Used * Tall glass of water * PVC Pipe, 10 in. * Tape measure, 3 m * Mercury thermometer * Tuning fork, 384 Hz * Marker pencil * Block of wood C. Data Table 1: Tuning fork frequency (Hz) | Length, L Water level to top of the tube (m) | D= diameter of tube (m) | Wavelength=4(L+0.3d)(m) | Room temperature (degrees C) | 384 | 0.218 | 0.020 | 0.896 | 24 | D. Calculations A.
A straight line approximation for the Mohr-Coulomb failure envelope can then be drawn. The friction angle is thus calculated from the slope of the failure envelope. As with any experiment, the more tests taken for different normal stresses, the more accurate the Mohr-Coulomb failure envelope will be. Experimental Procedure * Weigh the initial mass of soil and record it. * Measure the height, width and length of the shear box and record it.
Using a metric ruler measure the height and diameter of each cylinder in centimeters. 4.) Compute the volume by using the equation - Volume=(∏d^2h)/4. 5.) Record all data in a table and graph the results with the Volume on the x-axis, and the Mass on the y-axis.