Exercise $32\mathrm{.}24-$ Enhanced $-$ with Feedback

$12$ of $22$

Review

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Constants

Introduction

In the $25$ ftft Space Simulator facility at NASA's Jet Propulsion Laboratory, a bank of overhead arc lamps can produce light of intensity $2500$ W$/$m$2$W$/$m$2$ at the floor of the facility. $($This simulates the intensity of sunlight near the planet Venus.$)$

Part A

Find the average radiation pressure $($in pascals and in atmospheres$)$ on a totally absorbing section of the floor.

Enter your answers in pascals and in atmospheres separated by a comma.

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

Pab,Pa$,$Pab,atmPab,Pa$,$Pab,atm $=$

nothing

Pa$,$atmPa,atm

SubmitRequest$$Answer

Part B

Find the average radiation pressure $($in pascals and in atmospheres$)$ on a totally reflecting section of the floor.

Enter your answers in pascals and in atmospheres separated by a comma.

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

Pre,Pa$,$Pre,atmPre,Pa$,$Pre,atm $=$

nothing

Pa$,$atmPa,atm

SubmitRequest$$Answer

Part C

Find the average momentum density $($momentum per unit volume$)$ in the light at the floor.

Express your answer in kilograms per square meter second.

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

dpdVdpdV $=$

nothing

kg$/$m$2$skg$/$m$2$s

SubmitRequest$$Answer