C. Power Problems4. W - 100 Jt-10 sP=?**7. W = 500 Jt=25 sP=?or: lo tigiow salt ei tad somST5. W = 225 JP=25 Wt=?8. W = 336 Jt=?P = 14 Wontzib 91815W6. P 20 Wt=15 sW = ?9. W = ?t = 16.6 sP = 64 WTorboon oth how10. A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds. Howmuch power was used?nors tar estom OS stero svom od znowo 0001 to sonol a vigas no moxow to quong all IHi Auto11. How much time is needed to produce 720 Joules of work if 90 watts of power is used?12. If 68 W of power is produced in 18 seconds, how much work is done?how13. A set of pulleys lifts an 800 N crate 4 meters in 7 seconds. What powow to sluol 80 11 SIpower was used?

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Description: C. Power Problems4. W - 100 Jt-10 sP=?**7. W = 500 Jt=25 sP=?or: lo tigiow salt ei tad somST5. W = 225 JP=25 Wt=?8. W = 336 Jt=?P = 14 Wontzib 91815W6. P 20 Wt=15 sW = ?9. W = ?t = 16.6 sP = 64 WTorboon oth how10. A person weighing 600 N gets on an

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10. A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds. How much power was used? 1. How much time is needed to produce 720 Joules of work if 90 watts of power is used? 2. If 68 W of power is produced in 18 seconds, how much work is done? em well I A set of pulleys lifts an 800 N crate 4 meters in 7 seconds. What power was used?

10. A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds. How much power was used? 1. How much time is needed to produce 720 Joules of work if 90 watts of power is used? 2. If 68 W of power is produced in 18 seconds, how much work is done? em well I A set of pulleys lifts an 800 N crate 4 meters in 7 seconds. What power was used?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 2CQ: Explain in practical terms why efficiency is defined as

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C. Power Problems
4. W - 100 J
t-10 s
P=?
**
7. W = 500 J
t=25 s
P=?
or: lo tigiow salt ei tad som
ST
5. W = 225 J
P=25 W
t=?
8. W = 336 J
t=?
P = 14 W
ontzib 91815
W
6. P 20 W
t=15 s
W = ?
9. W = ?
t = 16.6 s
P = 64 W
Torboon oth how
10. A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds. How
much power was used?
nors tar estom OS stero svom od znowo 0001 to sonol a vigas no moxow to quong all I
Hi Auto
11. How much time is needed to produce 720 Joules of work if 90 watts of power is used?
12. If 68 W of power is produced in 18 seconds, how much work is done?
how
13. A set of pulleys lifts an 800 N crate 4 meters in 7 seconds. What pow
ow to sluol 80 11 SI
power was used?

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