In one experiment, 9000 photons are detected in a 0.60 mm -wide strip where the amplitude...
In one experiment, 7000 photons are detected in a 0.40 mm -wide strip where the amplitude of the electromagnetic wave is 500 V/m Part A What is the wave amplitude at a nearby 0.90 mm -wide strip where 2000 photons are detected? Express your answer to two significant figures and include the appropriate units. μΑ Value Units A = Request Answer Submit
The wide-flange beam is subjected to the loading shown in (Figure 1). Suppose that P = 25 kN. Follow the sign convention. Part A Although it is not very accurate, use the shear formula to determine the shear stress developed at point A. Express your answer to three significant figures and include the appropriate units. CE MÅ Value O O ? Units Submit Request Answer - Part B Figure < 1 of 1 > Determine the principal stress 01 at...
At one instant, the electric and magnetic fields at one point of an electromagnetic wave are E = (200i + 310 j – 50k)V/m and B = (7.2î – 7.0j + ak)Bo. Part A What is the value of a? Express your answer using two significant figures. IVO AXO o 2 ? Submit Request Answer Part B What is the value of B,? Express your answer using two significant figures. IV AEC A o 2 ? Bo = Submit Request...
A string vibrates at its third-harmonic frequency Review Part A A string vibrates at its third-harmonic frequency. The amplitude at a point 42 cm from one end is half the maximum amplitude How long is the string? Express your answer to two significant figures and include the appropriate units. Value Units Review Part A A metal wire under tension To vibrates at its fundamental frequency For what tension will the third-harmonic frequency be the same as the fundamental frequency at...
Review Part A At one instant, the electric and magnetic fields at one point of an electromagnetic wave are E- (230i+350 j-60k)V/m and B-(7.91-7.0jt ak)Bs. What is the value of a? Express your answer using two significant figures. a--10.6 Answers Correct Part B What is the value of Bo? Express your answer using two significant figures. Bo- You have already submitted this answer. Enter a new answer. No credit lost. Try again. Part C What is the Poynting vector at...
The rigid metal strip of negligible weight is used as part of an electromagnetic switch. Part A k 6 N/m and the strip is originally horizontal when the springs are unstretched. (Figure 1) Determine the smallest force F needed to close the contact gap at C Express your answer to three significant figures and include the appropriate units. uA F- 10 Submit Previous Answers Request Answer X Incorrect; Try Again; 29 attempts remaining Figure 1 of 1 Provide Feedback 50...
Review ast An A-36 steel strip has an allowable bending stress of 165 MPa. The modulus of elasticty for A-36 steel is 200 GPa (Figure 1) er registration Part A it is rolled up, detemine the smallest radius r of the spool if the strip has a width of 15 mm and a thickness of 1.5 mm Express your answer to three signifticant figures and include the appropriate units. r909 mm ssions Previous Answers Correct Part B Find the comesponding...
PHY 2412 University Physic Week 8 (Chapter 31) Assignment Problem 31.12 Part A What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 15 V/m ? Express your answer to two significant figures and include the appropriate units. B: Value Units Submit Request Answer Provide Feedback O Type here to search Дні ен -
please make sure the answers are clear for understanding Problem 22.24 Part A How much energy is transported across a 1.05 cm area por hour by an EM wave whose Efield has an ims strength of 39.3 mV/m ? The wave travels in free space Express your answer using three significant figures. 0 AED → Om ? au - J/h Submit Request Answer Problem 22.26 The amplitude of the B field of an EM wave is 2.9 x 10-7 T....
Take that a (Figure 1) 50 mm Part A Determine the distance to the centroid of the beam's cross-sectional area Express your answer to three significant figures and include the appropriate units z= | Value | Units | Submit Request Answer Part B Find the moment of inertia about the y axis. Express your answer to three significant figures and include the appropriate units LA IValue Units Figure 1 of 1 Submit Request Answer < Return to Assignment Provide Feedback