This type of listening response is called back-channel signal. This allows the speaker to know that the listener is attentive or willing to engage a conversation between them. It is shown through short utterances, facial expressions, head nods and others.
The resultant vector can be determined by the component vectors. The component vectors are vector lying along the x and y-axes. The equation for the resultant vector, v is:
v = √(vx² + vy²)
v = √[(9.80)² + (-6.40)²]
v = √137 or 11.7 units
Answer:
Explanation:
If
-
, 
are temperatures of gasses and liquid in Kelvins,
and 
are thicknesses of gas layer and steel slab in meters,
, 
are convection coefficients gas and liquid in 
, 
is the contact resistance in 
,
- and
are thermal conductivities of gas and steel in 
,
then: part(a):
using known values:
part(b): Using the rate equation :
the surface temperature 
and 
Similarly
The temperature distribution is shown in the attached image
