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

Author Question: A double-paned window consists of two 60.0 cm 100 cm glass panes, 2.00 mm thick, separated by a ... (Read 11 times)

lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
on: Jul 29, 2018
A double-paned window consists of two 60.0 cm  100 cm glass panes, 2.00 mm thick, separated by a 1.50 cm layer of still air. 25.0 W of heat flow through the window.
 
  What is the temperature difference between the indoors and outdoors? The thermal conductivity of glass is 0.840 W/(mK), and that of air is 0.0234 W/(mK). A) 27.6 K
  B) 27.3 K
  C) 26.9 K
  D) 26.7 K
  E) 26.3 K

Question 2

A nearsighted person has a far point that is 4.2 m from his eyes. What focal length lenses in diopters he must use in his contacts to allow him to focus on distant objects?
 
  A) 0.48 diopters
  B) -0.48 diopters
  C) -0.36 diopters
  D) -0.24 diopters
  E) 0.24 diopters


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cuttiesgirl16

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

D


lb_gilbert

  • Member
  • Posts: 588
Reply 2 on: Jul 29, 2018
Gracias!

lcapri7

  • Member
  • Posts: 350
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Bulletproof glass Bulletproof glass
Thick filaments are bipolar structures created by the association of many myosin molecules Thick filaments are bipolar structures created by the association of many myosin molecules
Double-label fluorescence microscopy can visualize the relative distributions of Double-label fluorescence microscopy can visualize the relative distributions of
A good disinfecting solution you can make yourself consists of 1 part bleach to 10 parts water. A good disinfecting solution you can make yourself consists of 1 part bleach to 10 parts water.
A late stage in mitosis after the chromosomes (stained blue) have separated A late stage in mitosis after the chromosomes (stained blue) have separated
Glass Beach in California Glass Beach in California
Video: Second Messengers in the Inositol-lipid Signaling Pathway

For a complete list of videos, visit our video library