Question

^{Problem 23.18: High-energy cancer treatment. Scientists are working on a new technique to kill cancer cells by zapping them with ultrahigh-energy in the range of 1012 W) pulses of electromagnetic waves that last for an extremely short time (a few nanoseconds). These short pulses scramble the interior of a cell without causing it to explode, as long pulses would do. We can model a typical such cell as a disk 5.0 pm in diameter, with the pulse lasting for 3.4 ns with an average power of 2.281012 W. We shall assume that the energy is spread uniformly over the faces of 100 cells for each pulse. Part A How much energy is given to the cell during this pulse? Express your answer in joules to two significant figures. U = 77 J Submit Previous Answers Correct Part B What is the intensity (in W/m²) delivered to the cell? Express your answer to two significant figures. IVO AQ R O P ? Submit Request Answer Part What is the maximum value of the electric field in the pulse? Express your answer in volts per meter to two significant figures. VADO O 2 ? EE Submit Request Answer Part D What is the maximum value of the magnetic field in the pulse? Express your answer in teslas to two significant figures. VALD O ? Bmax = Submit Request Answer}

Answer 1

- 2 X10 cos 3) intensity (T) = A I – 2028 x 10² w =116119 x 1023 W/m (2.5x106m)? I - 11.2010 23 when 3) Emax = RI - 2(1.261194465 x16826/a) (8.85 81012 /-% ) (3x18 /3) = 9-352664 102 Vin qux10 12/v/m D Bmax = Emase – 9.35 266 X 10? Vom 3x108 m/s – 31175.53815 T = (31000 T