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gladu [14]
3 years ago
8

Cathy, a 125lb actress playing Peter Pan, is hoisted above the stage in order to “fly” by a stagehand pulling on a compound pull

ey system that has 6 supporting strands with a force of 30lbs. A) What is the ideal mechanical advantage of the pulley?
Engineering
1 answer:
Zinaida [17]3 years ago
3 0

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.

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A

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Technician A says that the connecting rod and main bearing caps should be marked before removing to ensure that they can be inst
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Technician A

Explanation:

This is because when the dimacations are made, the surface area and length respectively can be maintained to reduce to idea of force which may lead to damage

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2 years ago
Chegg Discuss why stress-strain behavior of material is critical than just the ultimate strength of the material. What propertie
DanielleElmas [232]

Answer:

Throughout the clarification section elsewhere here, the definition of the concern is mentioned.

Explanation:

  • The stress-strain curve provides designers with a long list of critical parameters that are needed for utility development. Including capacity, longevity, elasticity, apparent viscosity, tension electricity, resilience, as well as flexural strength, a load-pressure assignment gave us several mechanical households at a certain point of operation. It also assists in manufacturing.
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4 0
3 years ago
A sewer pipe 8 inches in diameter can carry 0.662 ft3/s when flowing at a depth of 4 inches.
Rom4ik [11]

Answer:

a) the flow under full capacity is  q₂= 1.334 ft³/s

b) the velocity would be v= 3.793 ft/s

Explanation:

a) Since the pipe has 8 inches in diameter but 4 are covered with water flow ( half of a circle in area=A₁) , q₁=0.662 ft³/s then

q₁=A₁*v

then for the same velocity v but area A₂=2*A₁

flow under full capacity= q₂ = A₂*v= 2*A₁*v= 2*q₁=2*0.662 ft³/s= 1.334 ft³/s

b) when flowing at a depth of 4 inches

A₁= (1/2)*(π*D²/4) = π* (1/8)*(8 in)² = 8π in² * (1  ft²/ 144  in²) = π/18 ft² = 0.1745 ft²

then

v=q₁/A₁ = 0.662 ft³/s/0.1745 ft²= 3.793 ft/s

v= 3.793 ft/s

6 0
4 years ago
What steps would you take to design an improved toothpaste container?
algol [13]

Answer:

A. Identify the need, recognize limitations of current toothpaste containers, and then brainstorm ideas on how to improve the existing

Explanation:

To design an improved toothpaste container, we must identify the needs of the customer, one of the major need is to make the container attractive to the sight. This is the first thing that will prompt a customer to wanting to buy the product (The reflectance/appearance).

Then recognize the limitation of the current design, what needed change. This will help in determining what is needed to be included and what should be removed based on identified customers need.

The last step is to brainstorm ideas on how to improve the existing designs. Get ideas from other colleagues because there is a saying that two heads are better than one. This will help in coming to a reasonable conclusion on the new design after taking careful consideration of people's opinion.

7 0
3 years ago
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