An electric winch is being used to help construct your facility. The winch operates at 71% efficiency with an input voltage of 120 volts [V]. When the winch lifts an object to a height of 7 meters [m] in 25 seconds [s], a current of 21 amperes [A] is required. What is the approximate weight of the object the winch lifted in units of newtons [N]? Click the icon to view the table of common derived units in the Sl system. The weight is N. (Round your answer to a whole number.)
An electric winch is being used to help construct your facility. The winch operates at 71% efficiency with an input voltage of 120 volts [V]. When the winch lifts an object to a height of 7 meters [m] in 25 seconds [s], a current of 21 amperes [A] is required. What is the approximate weight of the object the winch lifted in units of newtons [N]? Click the icon to view the table of common derived units in the Sl system. The weight is N. (Round your answer to a whole number.)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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An electric winch is being used to help construct your facility. The winch operates at 71% efficiency with an input voltage of 120 volts [V].
When the winch lifts an object to a height of 7 meters [m] in 25 seconds [s], a current of 21 amperes [A] is required. What is the approximate
weight of the object the winch lifted in units of newtons [N]?
Click the icon to view the table of common derived units in the Sl system.
%
The weight is N. (Round your answer to a whole number.)
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Transcribed Image Text:lescope
Lab and
stering
om
ourse Evaluation
mand
2
W
S
Question list
X
O Question 3
O Question 4
O Question 5
Review 8-97 (algorithmic)
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prod.pearsoncmg.com/Player/Player.aspx?cultureld-en-us&theme-finance&style=highered&disableStandbyIndicator=true&assignmentHandleslocale=true#
#
3
E
Question 6
D
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$
R
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An electric winch is being used to help construct your facility. The winch operates at 71% efficiency with an input voltage of 120 volts [V].
When the winch lifts an object to a height of 7 meters [m] in 25 seconds [s], a current of 21 amperes [A] is required. What is the approximate
weight of the object the winch lifted in units of newtons [N]?
Click the icon to view the table of common derived units in the Sl system.
%
The weight is N. (Round your answer to a whole number.)
5
G Search or type URL
T
G
6
MacBook Pro
B
Y
H
吃的
&
7
N
U
8
J
I
M
(
9
K
MOSISO
<
O
O
L
Clear all
a
P
:
command
Check answer
...
??
I
option
delete
re
![Unit Conversion Table
Angle
1 rad
Area
1 acre
Dynamic Viscosity
1 Pa s
Energy
1 BTU
1 cal
1 kWh
Force
IN
1 kip
1 lbr
Length
1 km
1
in
1 mil
1 yd
Mass
1 kg
1 lbm
1 ton [metric]
1 ton [US]
43,560
4,047
0.00156
640
10 P
0.225
1 x 105
1,000
1,055.06
4.184
J
0.239
cal
9.48 x 10 BTU
ft lbr
0.7376
3,600,000
0.621
2.54
12
5,280
1.609
2.205
16
32.2
2,204.62
2,000
deg
deg
Thinking Like an Engineer 5e
An Active Learning Approach
02
m²
mi²
acre
Ibr
dyne
The
ft
mi
cm
in
km
ft
lb
ounces (oz
Ibm
Ib
Power
1 W
Pressure
Time
1 d
1
1
1 yr
h
min.
1 K
Volume
1 gal
1 L
1 mL
1 m³
745.7
W
3.412
BTU/h
0.00134 hp
14.34
0.7376
Temperature Change
1 pint [pt]
1 quart (qt]
Tuju,
1.01325
29.92
760
101,325
14.7
24
60
60
365
1.8
18
3.785
1,000
0.264
0.0353
33.8
1,000
16
2
cal/min
ft lby/a
bar
ft H₂O
in Hg
mm Hg
psi
h
d
"C
"F
"R
gt
cm³ or co
gal
03
fluid oz (fl oz]
cm³ or ce
L
cups
fluid or [fl oz]
pt
Stephan, Bowman, Park, Martin, Oland
Copyright © 2021 Parson Education
SI Prefixes
Example: 1 milligram [mg]- 1 x 10 grams (gl
Numbers Less Than One
Prefix
deci-
centi-
milli-
micro-
Power of 10
-2
-3
-6
9
-12
-15
-21
-24
1
J light intensity
L length.
M mass
Force
Energy
nano-
Power
pico-
Temto
atto-
zepto
yocto
Pressure
Voltage
farad
henry
hertz
Prefix
Abbreviation
watt
m
Other Named Units
1 F
1 H
1 Hz
14
n
Fundamental Dimensions and Base SI Units
electric current (A)
N
amount
T
time
Р
f
a
7
V
ampere
[cd] candela
[m] meter
[kg] kilogram
Thinking Like an Engineer 5e
An Active Learning Approach
Example: 1 Megajoule [MJ] 1 x 10 joules [J]
Numbers Greater Than One
Power of 10
Prefix
1
2
3
9
12
1 (As) / V
1 (Vs)/A
1 s1
15
18
21
24
Common Derived, Named Units in the SI System
Base SI Units
1 N=1 km
1J-1 Nm-1kg m²
1W-11-1km²
1 Pa-1-1
1V-1-1-A
F-ma
(F) newton [N] Force (mass) (acceleration)
(E) joule
E-Fd
(P)
[W]
Energy (force) (distance)
P-E/t
Power (energy)/(time)
P-F/A
(P)
pascal [Pa] Pressure - (force) / (area)
(M)
volt
hecto-
kilo
V-P/I
Voltage - (power) / (current)
Mega-
Giga
temperature
ohm
poise
stoke
Tera-
Peta-
Exa-
Zetta
Yotta-
1Ω
Prefix
Abbreviation
1 P
1 St.
M
G
T
(moll mole
second
[s]
kelvin
[K]
kg m²
E
Z
ML
T²
M13
72
M12
T3
M
LT²
ML²
T³1
1V/A
1 g/(cm s)
1 cm²/s
Snow Park, Martin,
Copyright © 2011 Pardon](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F759a3292-35c4-4e1d-95e4-a498e23761c4%2F310d1f65-3cad-4aef-87b8-745266fff044%2Ft6j4le_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Unit Conversion Table
Angle
1 rad
Area
1 acre
Dynamic Viscosity
1 Pa s
Energy
1 BTU
1 cal
1 kWh
Force
IN
1 kip
1 lbr
Length
1 km
1
in
1 mil
1 yd
Mass
1 kg
1 lbm
1 ton [metric]
1 ton [US]
43,560
4,047
0.00156
640
10 P
0.225
1 x 105
1,000
1,055.06
4.184
J
0.239
cal
9.48 x 10 BTU
ft lbr
0.7376
3,600,000
0.621
2.54
12
5,280
1.609
2.205
16
32.2
2,204.62
2,000
deg
deg
Thinking Like an Engineer 5e
An Active Learning Approach
02
m²
mi²
acre
Ibr
dyne
The
ft
mi
cm
in
km
ft
lb
ounces (oz
Ibm
Ib
Power
1 W
Pressure
Time
1 d
1
1
1 yr
h
min.
1 K
Volume
1 gal
1 L
1 mL
1 m³
745.7
W
3.412
BTU/h
0.00134 hp
14.34
0.7376
Temperature Change
1 pint [pt]
1 quart (qt]
Tuju,
1.01325
29.92
760
101,325
14.7
24
60
60
365
1.8
18
3.785
1,000
0.264
0.0353
33.8
1,000
16
2
cal/min
ft lby/a
bar
ft H₂O
in Hg
mm Hg
psi
h
d
"C
"F
"R
gt
cm³ or co
gal
03
fluid oz (fl oz]
cm³ or ce
L
cups
fluid or [fl oz]
pt
Stephan, Bowman, Park, Martin, Oland
Copyright © 2021 Parson Education
SI Prefixes
Example: 1 milligram [mg]- 1 x 10 grams (gl
Numbers Less Than One
Prefix
deci-
centi-
milli-
micro-
Power of 10
-2
-3
-6
9
-12
-15
-21
-24
1
J light intensity
L length.
M mass
Force
Energy
nano-
Power
pico-
Temto
atto-
zepto
yocto
Pressure
Voltage
farad
henry
hertz
Prefix
Abbreviation
watt
m
Other Named Units
1 F
1 H
1 Hz
14
n
Fundamental Dimensions and Base SI Units
electric current (A)
N
amount
T
time
Р
f
a
7
V
ampere
[cd] candela
[m] meter
[kg] kilogram
Thinking Like an Engineer 5e
An Active Learning Approach
Example: 1 Megajoule [MJ] 1 x 10 joules [J]
Numbers Greater Than One
Power of 10
Prefix
1
2
3
9
12
1 (As) / V
1 (Vs)/A
1 s1
15
18
21
24
Common Derived, Named Units in the SI System
Base SI Units
1 N=1 km
1J-1 Nm-1kg m²
1W-11-1km²
1 Pa-1-1
1V-1-1-A
F-ma
(F) newton [N] Force (mass) (acceleration)
(E) joule
E-Fd
(P)
[W]
Energy (force) (distance)
P-E/t
Power (energy)/(time)
P-F/A
(P)
pascal [Pa] Pressure - (force) / (area)
(M)
volt
hecto-
kilo
V-P/I
Voltage - (power) / (current)
Mega-
Giga
temperature
ohm
poise
stoke
Tera-
Peta-
Exa-
Zetta
Yotta-
1Ω
Prefix
Abbreviation
1 P
1 St.
M
G
T
(moll mole
second
[s]
kelvin
[K]
kg m²
E
Z
ML
T²
M13
72
M12
T3
M
LT²
ML²
T³1
1V/A
1 g/(cm s)
1 cm²/s
Snow Park, Martin,
Copyright © 2011 Pardon
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