Awindowpane is half a centimeter thick and has an area of 1.0 m2. the temperature difference between the inside and outside surfaces of the pane is 15° c.

what is the rate of heat flow through this window? (thermal conductivity for glass is 0.84 j/s⋅m⋅°c.)
a. 50 000 j/sb. 2 500 j/sc. 1 300 j/sd. 630 j/s

To solve this problem it is necessary to apply the concepts related to the heat flux rate expressed in energetic terms. The rate of heat flow is the amount of heat that is transferred per unit of time in some material. Mathematically it can be expressed as:

Where

k = 0.84 J/s⋅m⋅°C (The thermal conductivity of the material)

Area

Length

= Temperature of the "hot"reservoir

= Temperature of the "cold"reservoir

Replacing with our values we have that,

Therefore the correct answer is B.

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!