Environmental factors can cause various changes in ecosystems. Which of the following would most likely have the greatest lastin
2 answers:
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Answer: Tension = 47.8N, Δx = 11.5× m.
Tension = 95.6N, Δx = 15.4× m
Explanation: The speed of a wave on a string under tension can be determined using the following:
denotes tension (N)
μ refers to linear density (kg/m)
Calculating the velocity:
0.0935 m/s
Distance a pulse traveled in 1.23ms:
Δx = 11.5×
With a tension of 47.8N, the distance a pulse will cover is Δx = 11.5× m.
When tension is doubled:
|v| = 0.1252 m/s
Distance in the same time:
15.4×
With the increased tension, it moves 15.4×
m
Response:
Clarification:
If
-
,
represent the temperatures of gases and liquids in Kelvins,
and
denote the thicknesses of the gas layer and steel slab in meters,
,
are the convection coefficients for gas and liquid in
,
represents the contact resistance in
,
- and
signify thermal conductivities of gas and steel in
,
then: part(a):
by employing known values:
part(b): Utilizing the rate equation:
the surface temperature is
and
Correspondingly
The temperature profile is depicted in the image provided
