A heat lamp emits infrared radiation whose rms electric

Reference no: EM13643771

A heat lamp emits infrared radiation whose rms electric field is Erms = 3500 N/C. (a) What is the average intensity of the radiation? (b) The radiation is focused on a person's leg over a circular area of radius 3.4 cm. What is the average power delivered to the leg? (c) The portion of the leg being radiated has a mass of 0.34 kg and a specific heat capacity of 3500 J/(kg·C°). How long does it take to raise its temperature by 2.8 C°? Assume that there is no other heat transfer into or out of the portion of the leg being heated.

Reference no: EM13643771

Questions Cloud

Twenty dietary iron tablets with a total mass of 22131 g : twenty dietary iron tablets with a total mass of 22.131 g were ground and mixed thoroughly. then 2.998 g of the powder

Four point charges are placed at the corners of a square of : four point charges are placed at the corners of a square of side 0.20 m. the top two charges are 16 microc and the

Calculate the mass of the sun noting that the period of the : calculate the mass of the sun noting that the period of the earths orbit around the sun is 3.156 107 s and its distance

Upon quenching the steel from 950 degree celsius to 50 : for a steel containing 0.4 ca at what temperature does austenite start to transform on cooling from 950 degree

A heat lamp emits infrared radiation whose rms electric : a heat lamp emits infrared radiation whose rms electric field is erms 3500 nc. a what is the average intensity of the

A recent survey indicated that the average yearly salary of : a recent survey indicated that the average yearly salary of middle school teachers in wichita kansas is 45000 with a

Using the known radius of the earth and that g 980 ms2 at : using the known radius of the earth and that g 9.80 ms2 at the earths surface find the average density of the earth.

At the top of a building the barometric pressure reads 730 : at the top of a building the barometric pressure reads 730 mm hg at the bottom of the building the barometric pressure

An investigator at a diet center is interested in the : an investigator at a diet center is interested in the habits of clients entering his centers weight loss program. given

User Account

All Pages