Description Your First Lab Assignment: "Dynamics Track" Your first lab assignment is the "Dynamics Track" where you will learn more about velocity and acceleration. First, read the PDF documents that are listed below: Click here for the "Track" handout. Click here for the "Dynamics" handout. Click here for the "Velocity" handout. Click here for the "Acceleration" handout. Once you log into the virtual physics lab, you will want to select the "Dynamics" lab. The first thing you should do is watch the video overview (remember, there is no sound). Watch the arrow as it shows you where to click to perform the lab. You will also find the instructions in the PDF documents to be extremely helpful as you work the lab. Then, get into the Virtual Physics Lab and run several experiments, using a wide variety of data points. You need to generate a Lab Report to submit for this assignment. Here are the criteria for the Lab Report: Introduction/Thesis (Explain the principles you are studying, and what results you expect to see in this experiment) Background (Explain the concepts that form the foundation for this lab) Methodology (Explain the apparatus used, and how you manipulated the apparatus) Data (Include screen shots from the Grapher, or spreadsheets that contain data, or any charts or graphs you created) Analysis (Look over the data and analyze the results - were results consistent with original expectations, or did you see something different?) Conclusions (Provide your interpretation of what happened with this set of data; provide explanations of why the results turned out the way they did; indicate what sources of error may have impacted the experiment, and anticipate what should happen in future research)
Description QUESTION 1 If a car horn honking that is 450 m is heard 1.3 seconds after it goes off, what is the temperature in degrees Celsius? A. c. 56 °C B. b. 34 °C C. a. 25 °C D. d. 12 °C 12.5 points QUESTION 2 A piece of gold with a mass of 5.50 kg and density of 19300 kg/m3 is suspended from a string and then totally immersed in a beaker of water. Using density of water is 1000 kg/m3 a) Determine the volume of the piece of gold. b) Determine buoyant force on the gold when it is submersed. Path: Path: p Words:0 12.5 points QUESTION 5 4.50 moles of an ideal gas is at 560K. Is the gas undergoes an adiabatic compression and 3750 J of work is done on the gas, what is the final temperature of the gas? A. b. 572 K B. a. 627 K C. c. 2590 K D. d. 977 K 12.5 points QUESTION 6 A gas is taken through the cycle illustrated here. During one cycle, how much work is done by an engine operating on this cycle? A. 3PV B. 4PV C. 2PV D. PV 12.5 points QUESTION 7 A CD with a diameter of 12.5 cm goes from rest to a tangential velocity of 5.6 m/s. If it does this in 2.5 seconds, what is its angular acceleration? A. 16 rad/s2 B. 24 rad/s2 C. 18 rad/s2 D. 36 rad/s2 12.5 points QUESTION 8 An object has a weight of 400 N when it is dry. When it is completely submerged in water is has a weight of 150 N. What is the density of the material is the density of water is 1000 kg/m3? A. c. 1200 kg/m3 B. b. 4500 kg/m3 C. a. 2300 kg/m3 D. d. 1600 kg/m3
Description Static Equilibrium and Fluids Please solve the following problems. You must show all work for full/partial credit. 1. A street light is supported by two vertical wires and each makes a different angle from each other. The one on the left is 32 degrees and the one on the right is 43 degrees. Find the tension in each wire if the street light has a mass of 60.0 kg. 2. There are three masses m1 = 2.0 kg, m2 = 5.0 kg and m3 = 7.0 kg. The mass are all affixed to a massless rod of length 15cm. m1 and m3 are at the ends and m2 is 10 cm from left where m1 is. Calculate the center of mass of the system. 3. A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. If the person applies of a force of 15 N on each handle and the blades are 3.5 cm long, how much force is applied to the branch? 4. A 245 kg person lays on board that is supported only on the ends and that has a mass of 12.0 kg. If the person and the board are both 205 cm long and the person’s center of mass is 38 cm from the left side, what is the force on either side where the board is supported? 5. A large tank of water is full and has a depth of 10.0 m. What is the pressure at the bottom of the tank? What would the velocity of the water be if the tank was opened at the bottom? 6. A Two balloons of identical volume (radius 11.5 m) are filled with gas. The first with helium, the second with hydrogen (H2) gas. Each balloon and cage have a mass of 750 kg. What is the lift created by each one? Which one lifts better? 7. A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal? 8. If water leaves a tank of water at a velocity of 16.7 m/s, how tall is the tank?
