Answer:
The efficiency of the pulley, % Efficiency is [tex]69.\overline 4[/tex]%
Explanation:
The given parameters in the question are;
The mass of the actress playing Peter Pan (the pulley load) = 125 lb
The force applied to hoist the actress by the stage hand = 30 lbs
The actual mechanical advantage, AMA = Load/Force applied
Therefore, the AMA of the pulley = 125 lbs/(30 lbs) = 25/6 = [tex]4.1 \overline 6[/tex]
The pulley's Ideal mechanical advantage, IMA = The number of stands in the pulley = 6
The efficiency of a pulley is given by the following formula;
[tex]\% \ Efficiency = \dfrac{AMA}{IMA} \times 100[/tex]
Where
AMA = The actual mechanical advantage
IMA = The ideal mechanical advantage
Therefore, the efficiency of the pulley, % Efficiency, is given by plugging in the values of the AMA and the IMA in the efficiency formula as follows;
[tex]\% \ Efficiency = \dfrac{\dfrac{25}{6} }{6} \times 100 = \dfrac{625}{9}\% = 69.\overline 4\%[/tex]
The efficiency of the pulley, % Efficiency = [tex]69.\overline 4[/tex]%
Select the correct answer. In which prototyping technique, is a solid physical model of a part obtained directly from a 3D CAD drawing without the use of tooling? OA virtual prototyping OB. 3D printing O C. rapid prototyping OD. selective laser sintering
Answer:
Rapid Prototyping
Explanation:
The guy in the comments above gave the answer and i got it right on the test. Thank you my brother
What are the two ways service entrance feeder conductors can be brought into a dwelling?
Answer:
Service-entrance conductors can be spliced or tapped per 110.14, 300.5(E), 300.13, and 300.15 [230.46].
Explanation:
Service entrance conductors (aka, "service feed wire") run from the weather-head (exterior point of attachment) from the utility pole to the electric panel (usually the circuit breaker box). For most homes, the service entrance conductor will be located on or near the roof and tie into the overhead electrical lines.
1.
Calculate the resistance between points A and B (RAB) for the following resistor networks:
Figure 1
All resistors 5000
Figure 2
All resistors 1 k2
Figure 3
A
2k03 352
B В
4700
1000 $
B
A
ww
Figure 6
Figure 4
250 Ω
Figure 5
All resistors 2.2 k12
.B
23003
4700
31000
47002
33003
AW
94002
B
Answer:
The answer is below
Explanation:
1)
[tex]R_{AB}=(500+500)||(500+500)\\\\R_{AB}=1000||1000\\\\R_{AB}=\frac{1000*1000}{1000+1000} \\\\R_{AB}=500\ \Omega[/tex]
2)
[tex]R_{AB}=1000\|(1000+1000+1000)\\\\R_{AB}=1000||3000\\\\R_{AB}=\frac{1000*3000}{1000+3000} \\\\R_{AB}=750\ \Omega[/tex]
3)
Because of the short, the resistance is zero.
[tex]R_{AB}=0[/tex]
4)
[tex]R_{AB}=940\ \Omega[/tex]
5)
[tex]R_{AB}=2200||2200||(2200+2200)\\\\R_{AB}=2200||2200||4400\\\\\frac{1}{R_{AB}}=\frac{1}{2200} +\frac{1}{2200} +\frac{1}{4400} \\\\\frac{1}{R_{AB}}=\frac{5}{4400}\\\\R_{AB}=880[/tex]
6)
[tex]R_{AB}=(220+100)||470||330\\\\R_{AB}=320||470||330\\\\\frac{1}{R_{AB}}=\frac{1}{320} +\frac{1}{470} +\frac{1}{330} \\\\R_{AB}=120.7\ \Omega[/tex]
In the last 5 meters of braking, you lose ___ of your speed.
Select one:
a. 3/4
b.1/4
c. 1/2
d. None of these
Answer:
answer is
a)
3/4
Explanation:
In the last 5 meters of braking, you lose 3/4 of your speed.
Technician A says power steering pumps can be engine driven. Technician B says power steering
pumps can be electrically driven. Who is correct?
Select one:
A. Technician A
B. Technician B
C. Both A and B
D. Neither Anor B
Answer:
The correct option is;
C. Both A and B
Explanation:
Power steering supplies power more steering power when a driver turns the wheel to leverage the input steering effort of the driver thereby providing more steering with small effort
The power steering pumps which supply the power that to the fluid that eases steering of the wheel can be driven by the engine through a belt and pulley system or it can be installed in the front of the vehicle and from there, electrically driven alongside the refrigerant compressor
Therefore, both Technician A and Technician B are correct
Select the correct answer. Which material is commonly preferred for detailed projects such as connectors, jewelry, or small parts, but cannot be used for bigger prototypes? ОА. paper OB. plasticine clay Oc. silicone mold putty OD. epoxy clay
Answer:
the mean time I was wondering if you have any questions or need any further information please contact me at the mean time
Answer:
silicone mold putty
Explanation:
i took the test and got it right
Which sentence is an example of objective writing?
aOne time when I was on vacation with my dad, we found an arrowhead.
b Arrowheads and spearheads are some of the most familiar objects made by Native Americans.
c My friends and I even tried to make an arrowhead by scraping a rock on the sidewalk
Answer: C
Explanation: He has an objective he's trying to find arrowhead with his friends.
Describe how to use cleaning tools and equipment safely and properly
Answer:
to use cleaning tools safe its save to read what there made of its safe not to use to much of the product its also save to use gloves and goggles for some other products
Select the correct answer. Jude is a mechanical engineer. He works in the automobile industry. He is creating a prototype of an engine. While creating the prototype, which material did he use for joining multiple parts? ОА. silicone mold putty ОВ. paper O C. clay OD. moldable plastic
Answer:
Bid bureau of investigation
Answer:
clay
Explanation:
i took the test and got it right
If you have a hole diameter of 0.250 with a tolerance of ±0.005, what are the limits of the hole size?
Answer:
The limits of the hole size are;
The maximum limit of the hole diameter 0.255
The minimum limit of the hole diameter = 0.245
Explanation:
Tolerance is a standardized form of language that can be used to define the intended 'tightness' or 'clearance' degree between mating parts in a mechanical assembly process and in metal joining processes such as welding and brazing processes
In tolerancing, the size used in the description of a part is known as the nominal size while allowable variation of the nominal size that will still allow the part to function properly is known as the tolerance
A tolerance given in the form ±P is known as bilateral tolerancing, with the value being added to or subtracted from the nominal size to get the maximum and minimum allowable limits of the dimensions of the nominal size
Therefore;
The given nominal dimension of the hole diameter = 0.250
The bilateral tolerance of the dimension, = ±0.005
Therefore;
The maximum limit of the diameter of the hole = 0.250 + 0.005 = 0.255
The minimum limit of the diameter of the hole = 0.250 - 0.005 = 0.245
Which of the following shot pellets has the smallest diameter?
A, No. 9
B, No. 7 1/2
C, No. 4
D, 00 Buck
(its about guns)
The option of shot pellets that has the smallest diameter is (A) which is No. 9.
What are the pellets in shotgun shells known for?A shotgun shell is often known as shot shell. They are referred to as a type of shell that is often rimmed and it is contains a cylindrical cartridges that is often used in shotguns.
Conclusively, No. 9 is shot pellets that has the smallest diameter as it is the one whose diameter is very little.
Learn more about diameter from
https://brainly.com/question/23220731
If f(
[tex]x[/tex]
) =
[tex]81 {x}^{2} [/tex]
[tex]0 < x < \frac{1}{3} [/tex]
[
[
find the E (
[tex]x[/tex]
) and var(a)
What is the shortest distance from the root of a fillet weld to its face?
I need help with my autos
Answer:
what is wrong with it and what is the question
Explanation:
If he wants to keep the height the same, what could the other dimensions be for him to get the volume he wants?
tbm queria saber essa pergunta
An automotive piston's connecting rod is 8 inches long. What is the approximate length of this connecting rod in millimeters?
Which of the following is not a function of the suspension system?_____
A. Keeping tires in firm contact with the road.
B Providing a smooth, comfortable ride.
C .Allowing body roll during rapid cornering.
D. Preventing excessive body squat or body dive.
The one that is not a function of a suspension system is keeping tires in firm contact with the road. The correct option is A.
What is a suspension system?A suspension system, which consists of tires, tire gas, springs, dampers, and connections that allow for relative motion between both, attaches a vehicle's wheels to it.
Although they are at odds with one another, road holding and road handling require the support of suspension systems. The steering linkage, which is a component of the steering column, helps transmit action from the joystick to the tires of the car and aids in turning them in the right direction and at the right pace.
The steering axle, wheel, and tires are all included, as well as a front suspension.
Therefore, the correct option is A. Keeping tires in firm contact with the road.
To learn more about the suspension system, refer to the link:
https://brainly.com/question/23185310
#SPJ6
Which is TRUE regarding series circuits?
1) Resistance remains constant.
2) Voltage remains constant.
3) Power remains constant.
4) Current remains constant.
Answer:
Maybe it's 4 don't remember exactly
Type the correct answer in the box. Spell all words correctly. Elaine is an engineer. She has to create a prototype of a machine. To do this, she uses a technique where the production time of the prototype is reduced considerably with the help of a fast generation of 3D models. Which technique did she use? Elalne used the technique where the production time of the prototype is reduced considerably with the help of a fast generation of 3D models.
Answer:
the mean time I was wondering if you have any questions or need any further information please contact me at the mean time I was
Since 1990, hand-held mobile phones have been used as communication devices. Mobile phones have gone through a lot of design changes over the years. Do online research and discuss the major changes in mobile phone designs in the last 20 years.
Answer: IMPACT: Access to the mobile web was a major improvement for cell phones in the 1990s. With 2G (digital cellular networks), came the ability to access media content and the World Wide Web on cell phones.
Explanation:
suggest ways in which ozone depletion be slowed down or managed
Answer:
planting of trees
Explanation:
Briefly outline three areas to which agricultural engineers contribute, with examples of each.
PLEASE HURRY I NEED AN ANSWER QUICKLY
Answer:
This is off the internet! so put it in you own words.Explanation:
What Agricultural Engineers Do. ... Agricultural engineers attempt to solve agricultural problems concerning power supplies, the efficiency of machinery, the use of structures and facilities, pollution and environmental issues, and the storage and processing of agricultural products.
Blank are the amount of
Blank
moved.
Select one:
a.
Amps; electrons
b. Volts; electrons
C. Amps; protons
d. Volts: protons
Answer:
Amps, electrons
Explanation:
Amps, or amperes is the measure of electrons flowing though a wire per second.
1A = 6.24*10^18 electrons / second
6.3. A __________ is used to indicate the base material that needs to be beveled.
A. Bevel-groove weld symbol
B. Break in the arrow
C. Flag
D. Weld-all-around symbol
Answer:
A break in the arrow is used to indicate the base material that needs to be beveled
A. Break in the arrow
Explanation:
In a weld that involves the welding of a joint that has a, a bevel, flare bevel, or J-groove, the side that requires beveling (chamfering) preparation in the welded joint before welding is indicated by an arrow having a definitive before pointing to the beveled member
However, the break in the arrow could excluded when the side to be chamfered is unmistakable
Therefore, the break in the arrow is the option that is used to indicate which of the material that is to be beveled.
Which is the best example of a digital leader sharing information?
Nina creates a budget spreadsheet and e-mails it to her boss before a meeting.
Erick conducts a survey on a street corner and copies his notes for his boss.
Rehana buys a newspaper ad and asks people to text ideas to her boss.
Fernando draws a blueprint at a meeting and e-mails his boss about it.
HELP!
give six reasons why farmers cultivate on small land
Ans:
1.some families of farmers are poor so they are forced to cultivate on small lands.
2.farmers have not enough resources to keep good care of the crops.
3.land nowadays is so expensive that they afford a small piece of land to cultivate.
4.farmers need helpers when there are no helpers, the farmers need to make there land small in order to cultivate.
Explanation:
i was just able to write 4 sorry. :(
Cathy, a 125lb actress playing Peter Pan, is hoisted above the stage in order to “fly” by a stagehand pulling on a compound pulley system that has 6 supporting strands with a force of 30lbs. A) What is the ideal mechanical advantage of the pulley?
Answer:
The ideal mechanical advantage (IMA) of the pulley is 6
Explanation:
The question parameters are;
The mass of the actress playing Peter Pan = 125 lb
The force applied by the stagehand to the pulley to hoist her = 30 lbs
The Ideal Mechanical Advantage (IMA) of a pulley = The number of strands (rope) the pulley has
Therefore, the Ideal Mechanical Advantage (IMA) of the given pulley with 6 strands = 6.
1. What's the maximum overall length of the part?
2. What material is used to fabricate the part
Answer:
1. The maximum length overall length of the part is 4 inches
2. The material with which the part is fabricated is 0.25 inch thick Hot Rolled Steel
Explanation:
The information given in the drawing are;
The angle of projection of the drawing = Third angle projection
The thickness of the material = 0.25" plate
The material with which the part is fabricated = 0.25 inch thick HRS
HRS is the acronym for Hot Rolled Steel
Therefore;
The material with which the part is fabricated is 0.25 inch thick Hot Rolled Steel
The scale of the drawing = 1:1 = which is 1 is to 1 drawing
The maximum length overall length of the part, l = 4 units
By visually testing the 1:1 scale drawing measurements of 4 units is comparable 4 inches measurement with an online ruler
Therefore;
The maximum length overall length of the part, l = 4 inches
