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For each of the following systems and time intervals, select the appropriate red

ID: 2173043 • Letter: F

Question

For each of the following systems and time intervals, select the appropriate reduced version of the equation below, the conservation of energy equation.

?K + ?U + ?Eint = W + Q + TMW +TET + TER
(b) your automobile from just before you fill it with gas until you pull away from the gas station at speed v

?Eint = W + Q + TET

?U = Q + TMT

0 = Q + TMT + TET + TER

?K + ?U + ?Eint = W + Q + TMW + TMT

?K = W + Q

?Eint = Q + TET + TER

?U = W + Q + TMW + TMT
(c) your body while you sit quietly and eat a peanut butter and jelly sandwich for lunch


0 = Q + TMT + TET + TER

?Eint = Q + TET + TER

?K = W + Q

?K + ?U + ?Eint = W + Q + TMW + TMT

?U = Q + TMT

?Eint = W + Q + TET

?U = W + Q + TMW + TMT

(d) your home during five minutes of a sunny afternoon while the temperature in the home remains fixed


?K = W + Q

?U = W + Q + TMW + TMT

?Eint = W + Q + TET

?Eint = Q + TET + TER

0 = Q + TMT + TET + TER

?K + ?U + ?Eint = W + Q + TMW + TMT

?U = Q + TMT



Explanation / Answer

?Eint = Q + TET + TER ?U = W + Q + TMW + TMT