Exercise $32\mathrm{.}14-$ Enhanced $-$ with Feedback

$5$ of $8$

Review

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Constants

Introduction

Scientists are working on a new technique to kill cancer cells by zapping them with ultrahigh$-$energy $($in the range of $1\mathrm{.}01012$ WW$)$ pulses of light 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 $5\mathrm{.}0$ mm in diameter, with the pulse lasting for $4\mathrm{.}0$ nsns with an average power of $2\mathrm{.}01012$ WW$.$ We shall assume that the energy is spread uniformly over the faces of $100$ cellscells for each pulse.

Part A

How much energy is given to the cell during this pulse?

Express your answer in joules.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

UU $=$

nothing

JJ

SubmitRequest$$Answer

Part B

What is the intensity $($in W$/$m$2$W$/$m$2)$ delivered to the cell?

Express your answer in watts per meter squared.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

II $=$

nothing

W$/$m$2$W$/$m$2$

SubmitRequest$$Answer

Part C

What is the maximum value of the electric field in the pulse?

Express your answer in volts per meter.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

EmaxEmax $=$

nothing

V$/$mV$/$m

SubmitRequest$$Answer

Part D

What is the maximum value of the magnetic field in the pulse?

Express your answer in teslas.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

BmaxBmax $=$

nothing

TT