(a) Let P(t) denote the continuous estimate of total popped kernels in a microwave popcorn bag at time t seconds. Initially, at the start of microwaving, there are no popped kernels in the bag. The rate at which kernels pop during microwaving is described by the pure-time differential equation dP dt 15 = 7 t - 1² 150 Estimate the number of popped kernels in the bag at time t = 55 seconds. Round your answer to the nearest integer. (b) What is the largest value of x such that 0 ≤ t ≤ x represents a physically relevant time interval for this popcorn model?

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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(a) Let P(t) denote the continuous estimate of total popped kernels in a microwave popcorn bag at time t
seconds. Initially, at the start of microwaving, there are no popped kernels in the bag. The rate at which
kernels pop during microwaving is described by the pure-time differential equation
dP
7
d² = ²/3 - 1/0²²
t
dt
15
Estimate the number of popped kernels in the bag at time t = 55 seconds. Round your answer to the nearest
integer.
(b) What is the largest value of x such that 0 ≤ t ≤ x represents a physically relevant time interval for this
popcorn model?
Transcribed Image Text:(a) Let P(t) denote the continuous estimate of total popped kernels in a microwave popcorn bag at time t seconds. Initially, at the start of microwaving, there are no popped kernels in the bag. The rate at which kernels pop during microwaving is described by the pure-time differential equation dP 7 d² = ²/3 - 1/0²² t dt 15 Estimate the number of popped kernels in the bag at time t = 55 seconds. Round your answer to the nearest integer. (b) What is the largest value of x such that 0 ≤ t ≤ x represents a physically relevant time interval for this popcorn model?
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