Experiment 1: Pressure, Temperature, and Velocity Measurement Objective: The objective of this experiment is to determine the pressure and density of laboratory air, calibrate a pressure transducer and scannivalve, then determine the test section speed as a function of fan speed using three methods of velocity measurement. Equipment: Absolute pressure transducer, digital thermometer, pressure transducer (voltmeter), micromanometer, scannivalve, Pitot tube, low-speed wind tunnel. Part 1: Measurement of Atmospheric Pressure and Density 1. Read the barometer and wind-tunnel thermocouple. 2.
(400mV) 2. What is the maximum force generated at the threshold stimulus? 0.093 (gf) 3. How does increasing voltage above threshold stimulus affect force development? By increasing the voltage above threshold stimulus the force
Figure 2 shows a circuit with a resistor R = 1.0 × 103 Ω, and a battery with potential difference of VB = 5.0V . (a) Solve the circuit in Figure 2. That is, find all unknown currents, voltages, and resistances. (b) What is the direction of the current? Note: I want the direction of the conventional current.
A2a. Experimental Design: By using commonly available materials and accurate measuring tools the experiment will allow others to obtain similar results. Connect the multimeter to the two ends of the coil of wire and vary the temperature of the coil of wire. Materials: Precision multimeter to measure resistance Digital timer to measure time periods Multimeter test clips 1000 foot coil of wire (28 gauge) High-precision digital thermometer 1 liter plastic vessel Tap water: Room temperature Ice/Water mix
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.
The membrane potential is due to the presence of an ionic concentration difference and electrical gradient between both sides of the membrane.movement of charged molecules across the cellular membrane leads to the creation of electrical signals. b. What two characteristics must a membrane possess in order to generate and maintain electrical signals critical to nervous tissue? The two traits required for electrical signal generation and maintenance is the presence of a resting membrane potentials and ionic pumps that maintain ionic concentration and electrical gradients between the two sides of the membrane. Membrane Transport Proteins 4.
Suggest two reasons for this change. Task 2 Press back but not clear and change the number of chips to 10 but leave the acid concentration at 1.0 mol/dm3 . Click start and take readings approximately every 3 seconds (by clicking the take readings button) until the mass reaches 0.0 g. Stop the reaction immediately. Plot these results on the same grid as the results of your first experiment. How does the rate of reaction in Task 2 compare with the rate in Task 1?
E1. Write an equation to show the equilibrium that exists between NaI(s) and Na+(aq) and I–(aq). AE1. NaI(s) ( Na+(aq) + I–(aq) E2. a Sketch a graph of the change in the radioactivity of the solution over time.
TEST BANK Chapter 1 MEASUREMENT OF WORK, POWER, AND ENERGY EXPENDITURE 1. Work is defined as a. the ability to transform energy from one state to another. b. the ability to utilize oxygen. c. force times distance. d. distance times power output.
The proton is raised to the higher energy spin state after absorbing the electromagnetic energy. Theoretically, the upward and downward transitions are produced equivalently yet the upward transition is stimulated more commonly because lower energy state is occupied more greatly. The greater the energy differences between the upper and lower state, the stronger the NMR signals produced.