COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 8, Problem 34QAP
To determine
How many days a person can use the fan with given specification
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A fan is designed to last for a certain time before it will have to be replaced (planned obsolescence). The fan only has one speed (at a maximum of 675 rpm), and it reaches the speed in 4.0 s (starting from rest). It takes the fan 8.0 s for the blade to stop once it is turned off. The manufacturer specifies that the fan will operate up to 1 billion rotations.
Andre lives in a hot climate, works outside of the home from approximately 8:00 am to 5:00 pm, Monday through Friday, does not own an air conditioner, and can't sleep with the fan running. Estimate how many hot days ?hot Andre will be able to use the fan, rounded to the nearest day.
?hot=___________ days
*I tried putting 2,743 and 2,744 and still got it wrong both times. Please help for a thumbs up asap!
A fan is designed to last for a certain time before it will have to be replaced (planned obsolescence). The fan only has one speed (at a maximum of 750 rpm), and it reaches the speed in 4.0 s (starting from rest). It takes the fan 9.0 s for the blade to stop once it is turned off. The manufacturer specifies that the fan will operate up to 1 billion rotations.
Andre lives in a hot climate, works outside of the home from approximately 8:00 am to 5:00 pm, Monday through Friday, does not own an air conditioner, and can't sleep with the fan running. Estimate how many hot days ?hotNhot Andre will be able to use the fan, rounded to the nearest day.
N hot=
days
A fan is designed to last for a certain time before it will have to be replaced (planned obsolescence). The fan only has one
speed (at a maximum of 675 rpm), and it reaches the speed in 4.0 s (starting from rest). It takes the fan 8.0 s for the blade to
stop once it is turned off. The manufacturer specifies that the fan will operate up to 1 billion rotations.
Andre lives in a hot climate, works outside of the home from approximately 8:00 am to 5:00 pm, Monday through Friday,
does not own an air conditioner, and can't sleep with the fan running. Estimate how many hot days Nhot Andre will be able to
use the fan, rounded to the nearest day.
Chapter 8 Solutions
COLLEGE PHYSICS
Ch. 8 - Prob. 1QAPCh. 8 - Prob. 2QAPCh. 8 - Prob. 3QAPCh. 8 - Prob. 4QAPCh. 8 - Prob. 5QAPCh. 8 - Prob. 6QAPCh. 8 - Prob. 7QAPCh. 8 - Prob. 8QAPCh. 8 - Prob. 9QAPCh. 8 - Prob. 10QAP
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