Imagine a newly discovered weather pattern in which the temperature, measured in Degrees Kelvin and designated D , fluctuates according to the following equation (for which time is measured in SECONDS): = -625D. dt2 Imagine, further, some weather system for which the initial temperature is D. = 150 K. 1) In seconds, find how much TIME will elapse before the very next time the temperature returns to 150 K. You may round something like 3 sig figs 2) In Kelvins, find the temperature at the moment precisely 25 seconds have elapsed (from the start). You may round to something like 3 sig figs 3) In what units must the 625 be measured

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Please help me with this Homework ! Please show ALL the work! And please breakup everything into steps! And please make a DIAGRAM!
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II. A Heat Harmonic Hypothesized (
Imagine a newly discovered weather pattern in which the temperature, measured in
Degrees Kelvin and designated D , fluctuates according to the following equation (for which
time is measured in SECONDS):
-625D.
dt2
Imagine, further, some weather system for which the initial temperature is D, = 150 K.
) In seconds, find how much TIME will elapse before the very next time the
temperature returns to 150 K. You may round to something like 3 sig figs
2) In Kelvins, find the temperature at the moment precisely 25 seconds have
elapsed (from the start). You may round to something like 3 sig figs
3) In what units must the 625 be measured
?
4) Meteorologists conjecture that this weather system can be modeled as a
huge concentration of hot air, being pulled and pushed by pressure
differentials that behave as though they were elastic bands
Assume the hot air has a mass of 3 x 102 Kg.
If these pressure differentials are fluctuating as though they were elastic,
then their effective elasticity can be quantified as a stiffness, i.e.: spring
constant. Find the STIFFNESS of this representational weather spring.
5) TRUE or FALSE
D = 150 cos(25t + 14}s one possible "SOLUTION" to the Dif
Equation AS WELL AS CONDITION provided at
the top of this sheet.
6) TRUE or FALSE
D= 99 cos (1It) is one possible "SOLUTION" to that
(same) Dif. Equation AS WELL AS CONDITION
provided at the top of this sheet.
Transcribed Image Text:II. A Heat Harmonic Hypothesized ( Imagine a newly discovered weather pattern in which the temperature, measured in Degrees Kelvin and designated D , fluctuates according to the following equation (for which time is measured in SECONDS): -625D. dt2 Imagine, further, some weather system for which the initial temperature is D, = 150 K. ) In seconds, find how much TIME will elapse before the very next time the temperature returns to 150 K. You may round to something like 3 sig figs 2) In Kelvins, find the temperature at the moment precisely 25 seconds have elapsed (from the start). You may round to something like 3 sig figs 3) In what units must the 625 be measured ? 4) Meteorologists conjecture that this weather system can be modeled as a huge concentration of hot air, being pulled and pushed by pressure differentials that behave as though they were elastic bands Assume the hot air has a mass of 3 x 102 Kg. If these pressure differentials are fluctuating as though they were elastic, then their effective elasticity can be quantified as a stiffness, i.e.: spring constant. Find the STIFFNESS of this representational weather spring. 5) TRUE or FALSE D = 150 cos(25t + 14}s one possible "SOLUTION" to the Dif Equation AS WELL AS CONDITION provided at the top of this sheet. 6) TRUE or FALSE D= 99 cos (1It) is one possible "SOLUTION" to that (same) Dif. Equation AS WELL AS CONDITION provided at the top of this sheet.
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