The Scenario: A patient has a wound, in the process of healing, that is infected with bacteria. Will the patient need antibiotics? To explore this scenario, you will be analyzing videos of: 1) wound healing, 2) neutrophil (white blood cells) motion, and 3) bacteria motion. Clearly, the relative speeds of the neutrophils (white blood cells), and bacteria will affect your decision.

You have been provided with three videos down below: Wound healing, neutrophil motion, and bacteria motion. Each video is a sequence of images called ‘frames.’ The wound healing videos, ‘WoundHealing,’ show breast tissue cell sheet migration. The ‘Neutrophils’ videos show white blood cells responding to six different concentrations of fMLP— the chemical indicator of bacteria. The bacteria videos show E. coli motion. These videos are rich in detail but the files contain too much data to be analyzed in our limited lab time. From the shorter videos, your task is to perform a quantitative analysis, with Fiji and Excel, of the rates of motion of these cells. T

in your report make sure you are including tables for all three videos, the calculation of average velocity for both the neutrophils and the E. coli bacteria using your data, and a paragraph explaining whether the patient needs antibiotics and why. Be sure to include an explicit comparison of the white blood cell and E. coli velocities.

The First video is about E. coli .

The second Video is about neutrophils .

The thired video is about WoundHealing.

Hi, Please help this question

describe the snell’s law in 4-5 sentences.

keep precise.

Lab Report – SERIES AND PARALLEL CIRCUITS Name, course and lab section: _________________________________________ Part I – Series Circuits In Figure 1 below, we have two resistors wired in series with one another. The red and black clips in the figure are connected to a voltmeter, and the icon labeled “I” is an ammeter, which is wired in series with the resistors. The box labelled “V” is the power supply, which is supplying the total voltage to the circuit. + – R2 R1 I Black Red Figure 1 You have gone into the lab to find that someone has done current and voltage measurements for these resistor combinations already. The voltage across just resistor R1 is found in the column for V1; the voltage across just resistor R2 is found in the column for V2. The current through the circuit is found in the column for I. Part I: Series circuits Req R1 (W) R2 (W) I (A) V1 (V) V2 (V) VTOT (V) 1 10 10 0.251 2.519 2.498 5.00 2 10 33 0.117 1.187 3.826 5.00 3 33 33 0.076 2.511 2.502 5.00 (Using the rule for series Req (Ohm Law) resistors) (W) (W) 1. In the column that says Req (Ohm’s Law), use Ohm’s Law to calculate the equivalent resistance for the circuit. Show your calculations, and place your answers in the table. 2. In the column that says Req (using the rule for series resistors), use that rule to fill in values for the column. Show your calculations, and place your answers in the table. PART I – ANALYSIS 3. Examine the results of Part I. What is the relationship between the three voltage readings: V1, V2, and VTOT? 4. For each of the three series circuits, compare the experimental results with the resistance calculated using your rule. Calculate the percent difference for each row, and report each here, showing your calculations. Percent difference is used for comparing two experimental values x1 and x2: % difference = |”! #”” | “! $”” × 200% Note that the “200%” comes from the fact that in the denominator of the formula, we are really comparing with the average of x1 and x2. 2 Part II – Parallel circuits In the circuit below, you can see that someone has created Figure 2, showing the connections for a parallel circuit. As in the previous circuit, the red and black clamps are used to show where we measure the voltage applied to both resistors. The “I” indicates where we have inserted the ammeter to measure the total current. + – R1 I R2 Red Black Figure 2 In the table below, you can see that again, someone has taken current and voltage readings for the circuit, using different values for the two resistors. Part II: Parallel circuits R1 (W) 5. R2 (W) I (A) V1 (V) Req V2 (V) VTOT (V) 1 33 33 0.309 5.00 5.00 5.00 2 33 47 0.262 5.00 5.00 5.00 3 47 47 0.215 5.00 5.00 5.00 Req (Ohm Law) (W) (Using the rule for parallel resistors) (W) In the column that says Req (Ohm’s Law), use Ohm’s Law to calculate the equivalent resistance for the circuit. Show your calculations, and place your answers in the table. 3 6. In the column that says Req (using the rule for parallel resistors), use that rule to fill in values for the column. Show your calculations, and place your answers in the table. PART II – ANALYSIS 7. Examine the results of Part II. What is the relationship between the three voltage readings: V1, V2, and VTOT? 8. For each of the three parallel circuits, find the percent difference between your two values of the equivalent resistance. Show your calculations. 4 Part III – Currents in a Series circuit In Figure 3 below, we have two resistors in series, and there is an ammeter in between the resistors as well as an ammeter to the right of the 47 ohm resistor. Figure 3 9. Determine what the values of the current will be for each of the following empty cells in the table below. Show your calculations and/or explain how you determined what values for current go in each cell. Part III: Currents in Series Series R1 (W) R2 (W) 33 47 I1 (A) 5 I2 (A) ISource (A) Part IV – Currents in a Parallel Circuit In Figure 4 below, we show circuit diagrams in which we have connected a parallel circuit using the 33 ohm resistor and the 47 ohm resistor. In the left panel we show the circuit with two ammeters, one wired in series with each of the two resistors, which will measure the current through each resistor individually. In the right panel, a single ammeter is placed after the parallel resistor combination, in order to measure the total current output from the voltage source. Figure 4 10. Determine what the values of the current will be for each of the following empty cells in the table below. Show your calculations and/or explain how you determines what values for current go in each cell. Part IV: Currents in Parallel Parallel R1 (W) R2 (W) 33 47 I1 (A) 6 I2 (A) ISource (A) PARTS III-IV – ANALYSIS 11. What did you discover about the relationship between the currents flowing through two resistors connected in a series (Part III)? How do those currents compare with the current from the voltage source? 12. What did you discover about the relationship between the currents flowing through two resistors connected in parallel (Part IV)? How do those currents compare with the current from the voltage source? 13. If the two measured currents in your parallel circuit were not the same, which resistor had the larger current going through it? Why? 7 Part V – A Combination Circuit The previous lab occupant left a diagram of one final circuit that involves both series and parallel connections – but they did not write down any measurements. Use the questions and table below to predict what the resulting values for this circuit would be. Reminder: Be sure to show your calculations at every step! Figure 5 14. Use the rules for series and parallel resistors (as appropriate) to find: a. the equivalent resistance of resistors R1 and R2: R12 = ___________ W b. the equivalent resistance of the whole circuit: Req = ___________ W 15. Use Ohm’s Law to predict the total current being supplied by the power source. Assume that the power source is set to a voltage of 5.000 V. Then, use the rules for current in series or parallel circuits (as appropriate) to predict the current through resistor R3, and enter that value in the table below. Isource = _________ A 8 16. Use Ohm’s Law to predict the voltage across resistor R3. Then, use the rules for voltage in series and parallel circuits (as appropriate) to predict the voltages across resistors R1 and R2. Write all of these predictions into the table below. 17. Use Ohm’s Law to predict the currents passing through resistors R1 and R2, and enter the values in the table below. Part V: A Combination Circuit Resistors Voltage across that Resistor R1 = 10 W R2 = 47 W R3 = 33 W 9 Current through that Resistor 18. Now that you’ve fully predicted the parameters of the circuit, the scribblings of your predecessor make more sense. You see now that they measured the voltage and current for resistor R2 to be 1.008 V and 0.021 A, respectively. Calculate the percent difference between your predictions and these measurements. 19. How would you repeat the measurements your predecessor made on resistor R2? Explain in words below, and also draw/label the voltmeter and ammeter placements on Figure 5. 10

Name: Group Members: Date: Physics 130 Physics for Life Scientists Newton’s Laws and the Lunar Landing _______________________________________________________________________________ Introduction: ​In this simulation, you will experience Newton’s Laws from the standpoint of operating a spacecraft in a frictionless environment. You will learn how to pilot a lunar Lander, also called a Lunar Excursion Module or Lunar Module (LEM, LM) and land that craft on the surface of the moon. However, just like Neil Armstrong in 1969, you will have a limited amount of fuel and time before you will have to find a safe place to land the LM or suffer the consequences. Objectives: ● To gain an understanding of objects in motion in a straight line will only change their path if a force is applied according to Newton’s 1​st​ Law ● To understand the relationship between force, mass, and acceleration according to Newton’s 2​nd​ Law. ● To learn the concepts of action/reaction forces according to Newton’s 3​rd​ Law. ● To apply the kinemativ equations to new situations. Procedure: Familiarize yourself with the controls of the LM. Take a few minutes and play around with the Lander to see how it operates. If you can land your craft in between tighter boulders, you can get a higher score. Try flying horizontally and see what happens. Try boosting the LM at full thrust vertically upward and see what happens. Turn on the vector display so that you will visualize the factors acting on your Lander. ​Note that you can pause the program at any time to collect data! 1 Newton’s Laws: 1. While your LM is above the surface of the moon, fire the engines to gain some altitude. Cut your thrust so that you don’t waste all of your fuel. You should be at least 250m above the surface. Once you get to this altitude, tilt the LM so that you are at a 45​0​ to the vertical. Fire your engines for a brief burst. a. Once you fire your engines what do you notice about the x-Velocity? b. How can you correct your trajectory to compensate for the effect you observed in part (a)? c. Explain the reason why you have to correct your trajectory using Newton’s Laws. d. What do you have to do in order to get the LM to hover at a constant altitude? Adapted from Vernier, Physics 131, Scott Stambach, Cuyamaca College 2. Reset the simulation so that your LM has a full tank of fuel. Fire your engines for a short burst so that you gain some altitude. You should be at least 300m from the surface. a. Record an initial altitude for the LM and let it fall toward the surface without firing its engine. Notice the y-Velocity on the display monitor. Use this information to calculate the acceleration due to the moon’s gravity. Record your solution with the data you collected below. b. Once you have calculated the moon’s acceleration due to gravity, find the maximum acceleration of the LM due to its engines. Explain your solution below and show the data you used and collected. Adapted from Vernier, Physics 131, Scott Stambach, Cuyamaca College c. Now with the data you collected and your answer to part (b), find the mass of the LM. Explain your solution below and show the data you used and collected. d. Does your value for the mass of the LM change depending on how much fuel you use up in the simulation? Support your answer with data and show your work. e. According to your findings from this simulation, what would the LM’s weight be on Earth? On the Moon? Adapted from Vernier, Physics 131, Scott Stambach, Cuyamaca College Part 2 – Projectile Motion 1. Use the value for the acceleration due to gravity on the moon to complete this extension. Boost the LM to an altitude of ~300 m such that the y-Velocity will be zero at this point. (You may have to pause the simulation to get the sequence down.) Have the LM tilted 90​0 to the left or to the right so that if you fired the engines the resulting velocity would be along the x-axis. 2. Once at this altitude, and with the LM in the proper position, fire the engines for a short burst so that the LM gains a velocity of ~0.5 m/s (make sure you write down the exact velocity). 3. Predict where the LM will crash if you let it continue on its path to the surface of the moon. Does your prediction match the readout for the LM’s range on the display panel? (Note, you may have to maneuver your LM so that you have an initial x-position = 0m. Do this before you set the LM in position at the 300 m altitude. If this is too difficult, just note your initial x-position.) Find the % error between your prediction and the actual range. Adapted from Vernier, Physics 131, Scott Stambach, Cuyamaca College S SOLUTION: physics questions – х Week 6 Homework – Forces 6 NWP Assessment Player Ul Applix + 1 C A https://assessment.education.wiley.com/was/ui/v2/assessment-player/index.html?launchid=8e1e8333-4906-4eee-b9c0-844d0e185144#/question/14 1 Week 6 Homework-Forces Question 3 Multiple Choice Correct Question 15 of 15 < 071 III Question 4 Multiple Choice 1/1 Correct Incorrect. Question 5 Numeric Fill in the Blank with Units 1/1 Correct A 8.94 x 104 kg lunar landing craft is about to touch down on the surface of the moon, where the acceleration due to gravity is 1.60 m/s2. At an altitude of 265 m the craft’s downward velocity is 22.1 m/s. To slow down the craft, a retrorocket is firing to provide an upward thrust. Assuming the descent is vertical, find the magnitude of the thrust needed to reduce the velocity to zero at the instant when the craft touches the lunar surface. 1/1 Question 6 Multiple Choice Correct Question 7 Multiple Choice 1/1 ✓ Correct Question 8 Numeric Fill in the Blank with Units 0.1/1 Partially correct Question 9 Multiple Choice 1/1 Correct vo Question 10 Multiple Choice 1/1 Correct Question 11 Numeric Fill in the Blank with Units 1/1 Correct 1/1 Question 12 Numeric Fill in the Blank with Units Correct Number i 2.254.1045 ! Units N 1/1 Question 13 Numeric Fill in the Blank with Units Correct e Textbook and Media Question 14 Numeric Fill in the Blank with Units 1/1 Correct Hint Save for Later Attempts: 1 of 10 used Submit Answer Viewing Question 15 Numeric Fill in the Blank with Units 071 X Incorrect о Type here to search IH . GB el 4) ENG 6:40 PM 9/24/2020 S SOLUTION: physics questions – х Week 6 Homework – Forces 6 NWP Assessment Player Ul Applix + 1 C A https://assessment.education.wiley.com/was/ui/v2/assessment-player/index.html?launchid=8e1e8333-4906-4eee-b9c0-844d0e185144#/question/7 1 Week 6 Homework – Forces Question 3 Multiple Choice Correct Question 8 of 15 < > 0.1/1 III View Policies Question 4 Multiple Choice 1/1 ✓ Correct Show Attempt History Current Attempt in Progress Question 5 Numeric Fill in the Blank with Units 1/1 Correct Your answer is partially correct. Question 6 Multiple Choice 1/1 Correct A supertanker with the mass of 6.71 108 kg is moving with a constant velocity. Its engines generate a forward thrust of 1.13 x 106 N. Determine (a) the magnitude of the resistive force exerted on the tanker by the water and (b) the magnitude of the upward buoyant force exerted on the tanker by the water. Question 7 Multiple Choice 1/1 Correct Viewing Question 8 Numeric Fill in the Blank with Units 0.1/1 Partially correct Question 9 Multiple Choice 1/1 Correct Question 10 Multiple Choice 1/1 Correct (a) Number i 1.13*10^6 ! Units N (b) Number i 6.58.10^9 ! Units N Question 11 Numeric Fill in the Blank with Units 1/1 Correct e Textbook and Media Question 12 Numeric Fill in the Blank with Units 1/1 Correct Hint Question 13 Numeric Fill in the Blank with Units 1/1 Correct Save for Later Attempts: 2 of 10 used Submit Answer Question 14 Numeric Fill in the Blank with Units 1/1 Correct Question 15 Numeric Fill in the Blank with Units 0/1 Unsubmitted work j IH Type here to search > A el Ta » ENG 6:40 PM 9/24/2020 留 1 Week 7 SIX Assignme x Hess_Law X PDF Heat_Reac x Grand Roux : OWLv2 X C A Centrifu х y! a radius o S SOLUTION X DE lab77.pdf PO 20200923 X C Energy Is x 8 Beyond La x Log InCX + C File C:/Users/alyaa/OneDrive/Documents/lab77.pdf it 5 of 5 + FA) Read aloud Draw Erase 요 C TE Part 2 – Projectile Motion 1. Use the value for the acceleration due to gravity on the moon to complete this extension. Boost the LM to an altitude of -300 m such that the y-Velocity will be zero at this point. (You may have to pause the simulation to get the sequence down.) Have the LM tilted 90° to the left or to the right so that if you fired the engines the resulting velocity would be along the x-axis. 2. Once at this altitude, and with the LM in the proper position, fire the engines for a short burst so that the LM gains a velocity of -0.5 m/s (make sure you write down the exact velocity). m V= 0.48 m/s s 3. Predict where the LM will crash if you let it continue on its path to the surface of the moon. Does your prediction match the readout for the LM’s range on the display panel? (Note, you may have to maneuver your LM so that you have an initial x-position = Om. Do this before you set the LM in position at the 300 m altitude. If this is too difficult, just note your initial x-position.) Find the % error between your prediction and the actual range. 310 = X2 Horizontal velocity = 848/s Altitude = 300m a time of flight = 1.6 – 19.3649 seconds Horizontal distance travelled before crash = 19.3649 X0:48 = 19.295 m Actual = 9.27 m 9.295-9.27. Percentage 9.27 X100 =0:27.1. range = erw= Adapted from Vernier, Physics 131, Scott Stambach, Cuyamaca College o Type here to search IH D . O a » ENG 1:32 PM 10/1/2020 6