A 100-W (watt) light bulb has resistance R = 143 2 (ohms) when attached to household current, where voltage varies as V = Vo sin(27 ft), where Vo = 110 V, ƒ = 60 Hz. The power supplied to the bulb is P = J/s (joules per second) and the total energy expended over a time period [0, T] (in seconds) is T U = Р() dt Compute U if the bulb remains on for 7 hours. (Use decimal notation. Give your answer to one decimal place.) U = J
A 100-W (watt) light bulb has resistance R = 143 2 (ohms) when attached to household current, where voltage varies as V = Vo sin(27 ft), where Vo = 110 V, ƒ = 60 Hz. The power supplied to the bulb is P = J/s (joules per second) and the total energy expended over a time period [0, T] (in seconds) is T U = Р() dt Compute U if the bulb remains on for 7 hours. (Use decimal notation. Give your answer to one decimal place.) U = J
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![A 100-W (watt) light bulb has resistance R = 143 2 (ohms) when attached to household current, where voltage varies as
V = Vo sin(27ft), where Vo
= 110 V, f = 60 Hz. The power supplied to the bulb is P = J/s (joules per second) and the
R
total energy expended over a time period [0, T] (in seconds) is
T
U =
P(t) dt
Compute U if the bulb remains on for 7 hours.
(Use decimal notation. Give your answer to one decimal place.)
U =
J](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0077bb45-26df-400e-95c5-0803032f7a29%2Fd94ac61d-a071-4b14-b526-dfe18ba15eaa%2F6xl2kxh_processed.png&w=3840&q=75)
Transcribed Image Text:A 100-W (watt) light bulb has resistance R = 143 2 (ohms) when attached to household current, where voltage varies as
V = Vo sin(27ft), where Vo
= 110 V, f = 60 Hz. The power supplied to the bulb is P = J/s (joules per second) and the
R
total energy expended over a time period [0, T] (in seconds) is
T
U =
P(t) dt
Compute U if the bulb remains on for 7 hours.
(Use decimal notation. Give your answer to one decimal place.)
U =
J
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