The flux of 
is given by the surface integral
where 
is the given square region, which we can parameterize by
with 
and 
. The area element is
where 
is the normal vector to . Depending on the orientation of , this vector could be
or 
; either way, the integral reduces to
Answer:
26.8 %
Explanation:
TH = 100°C = 100 + 273 = 373 K
Tc = 0°C = 273 K
The efficiency of the heat engine is given by
η = 0.268
η = 26.8 %
Thus, the efficiency of the heat engine is 26.8 %.
Answer:
27.14 ohms
Explanation:
V = IR
V/I = R
1.9 v / .07 a = 27.14 ohms
<span> </span>Most of the stars in the Milky Way will end their lives as white dwarfs
Answer:
There are different ways to investigate density. In this required practical activity, it is important to:
record the mass accurately
measure and observe the mass and the volume of the different objects
use appropriate apparatus and methods to measure volume and mass and use that to investigate density
Explanation:
