A LASIK vision correction system uses a laser thatemits 10-ns-long pulses of light, each with 2.5 mJof energy. The laser is focused to a 0.85-mm-diameter circle.Part AWhat is the average power of each laser pulse?Express your answer using two significant figures.P = 2.5x105 WSubmitPrevious AnswersPart BCorrectWhat is the electric field strength of the laser light at the focus point?Express your answer using two significant figures.ΜΕ ΑΣΦVAΣ+?хахь√x x xx.10"E-5.66 101You have already submitted this answer. Enter a new answer.No credit lost. Try again.SubmitPrevious Answers Request AnswerN/C

Step 1:Time is 10nsEnergy is 2.5mJDiameter is 0.85mmStep 2:a)The average power is calculated as…

Answered: A LASIK vision correction system uses a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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In some facilities, real-time MRI is used to monitor a treatment. This imaging allows the treatment to be adjusted to achieve optimum results. However, the devices that deliver the treatment can themselves produce magnetic fields that interfere with the imaging. In one case, a device produces a 65 T static field parallel to the 1.5 T field in the MRI machine Part A By how much does this additional field change the proton's procession frequency? Express your answer with the appropriate units. A/= Submit 309 10 HA x₂ x+10 Hz Previous Answers Request Answe 431 12
Figure 1.0 nC 3.0 cm A -2.0 nC 3,0 cm 30 cm 1 of 1 -2.0 nC Part A What is the electric potonhal energy of the group of charges in the figure? Eigun1) Express your answer with the appropriate units Value Submit JA Provide Feedback h ? Previous Answers Request Answer x Incorrect; Try Again: 7 attempts remaining Enter your answer with a different und type Review a stat acceptable an P Pearson Next.
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Problem#2 You want to read a book in your room. To do so, you will hang a lamp of 600 Lumens from the ceiling. You can change the length of the electric wire to better serve your purpose. If you want to have at least an illuminance of 50 lux, what will be the minimum distance between the lamp and you to achieve this goal? Distance r
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A transformer with a turns ratio (secondary/primary) of 1:13 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit. Part A What is the voltage supplied to the recharger? Express your answer using two significant figures. -ΨΓ ΑΣΦ V = Submit Request Answer ? V
Part A A hollow metal cylinder has inner radius a, outer radius b, length L, and conductivity o. The current I is radially outward from the inner surface to the outer surface. Find an expression for the electric field strength inside the metal as a function of the radius r from the cylinder's axis. Express your answer in terms of some or all of the variables a, b, L. o. I, r, and the constant T. E(r) = Submit Request Answer Part B Evaluate the electric field strength at the inner surface of an iron cylinder if a = 0.60 cm , b= 2.2 cm , L = 10 cm, and I = 27 A Express your answer to two significant figures and include the appropriate units. HÀ Einner = Value Units Submit Request Answer Part C Evaluate the electric field strength at the outer surface of an iron cylinder if a = 0.60 cm. b= 2.2 cm. L=10 cm, and I= 27 A Express your answer to two significant figures and include the appropriate units. ? Eouter = Value Units Submit Request Answer
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A 50 g horizontal metal bar, 15-cm-long, is free to slide up and down between two tall, vertical metal rods that are 15 cm apart. A 5.5×10-2 T magnetic field is directed perpendicular to the plane of the rods. The bar is raised to near the top of the rods, and a 1.2 resistor is connected across the two rods at the top. Then the bar is dropped. Part A What is the terminal speed at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times. Express your answer in meters per second. 跖 ΑΣΦ ? v = Submit Request Answer m/s

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