This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A person is walking outdoors on a cold day when the temperature is -20C. He is breathing at the rate ... (Read 78 times)

nautica902

  • Hero Member
  • *****
  • Posts: 591
on: Jul 29, 2018
A person is walking outdoors on a cold day when the temperature is -20C. He is breathing at the rate of 16 breaths per minute, and each time he breathes in he inhales 0.0050 m3 of air.
 
  At what rate does he lose heat from breathing if the air in his lungs is heated to body temperature (37C) before it is exhaled? The specific heat of air is 1020 J/kg  K and the density of air is 1.29 kg/m3.
  A) 90 W B) 150 W C) 60 W D) 100 W E) 300 W

Question 2

An n-type semiconductor is produced by
 
  A) pure crystals of germanium.
  B) doping the host crystal with donor impurities.
  C) doping the host crystal with acceptor impurities.
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ahnyah

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


nautica902

  • Member
  • Posts: 591
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

parker125

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

THE RATE OF PHOTOSYNTHESIS THE RATE OF PHOTOSYNTHESIS
Auscultation. The stethoscope is pressed against the body wall to listen for sound waves associated Auscultation. The stethoscope is pressed against the body wall to listen for sound waves associated
Perform Infant Rescue Breathing Perform Infant Rescue Breathing
Water Helps Regulate Your Body Temperature Water Helps Regulate Your Body Temperature
Daily Variations in Temperature and Relative Humidity Daily Variations in Temperature and Relative Humidity
MRI scans of normal elderly person compared to one with Alzheimer's MRI scans of normal elderly person compared to one with Alzheimer's
Video: Proteins

For a complete list of videos, visit our video library