The purpose of lubricant is to ______.
A.Eliminate moisture
B.Save money on tools
C.Reduce friction and wear
D.Clean and maintain tools
Which description defines the mechanical advantage of a simple lever?
A.
the ratio of the total lever length to the length of the effort arm
B.
the ratio of the length of the load arm to the length of the effort arm
C.
the ratio of the length of the effort arm to the length of the load arm
D.
the ratio of the length of the load arm to the total lever length
E.
the ratio of the length of the effort arm to the total lever length
The mechanical advantage of a simple lever is C. the ratio of the length of the effort arm to the length of the load arm
Explanation:
There are two types of mechanical advantage for a machine:
The Ideal Mechanical Advantage (IMA) is the mechanical advantage of the machine if there are no loss of energy due to internal frictions, i.e. if the output work is equal to the input workThe Actual Mechanical Advantage (AMA) is the real mechanical advantage of the machine, taking into account the energy lost due to internal frictional forcesThe IMA of a lever can be calculated starting from the assumption that all the input work is transformed into output work with no loss of energy, therefore:
[tex]W_{in}=W_{out}\\F_{in} d_{in} = F_{out} d_{out}[/tex]
where
[tex]F_{in},F_{out}[/tex] are the effort and load forces, respectively
[tex]d_{in}, d_{out}[/tex] are the effort and load arm, respectively
The mechanical advantage is a measure of the multiplication factor of the force, so we can write:
[tex]IMA=\frac{F_{out}}{F_{in}}=\frac{d_{in}}{d_{out}}[/tex]
Therefore, the correct answer is
C. the ratio of the length of the effort arm to the length of the load arm
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The mechanical advantage of a simple lever is C. the ratio of the length of the effort arm to the length of the load arm
Explanation:
There are two types of mechanical advantage for a machine:
The Ideal Mechanical Advantage (IMA) is the mechanical advantage of the machine if there are no loss of energy due to internal frictions, i.e. if the output work is equal to the input work
The Actual Mechanical Advantage (AMA) is the real mechanical advantage of the machine, taking into account the energy lost due to internal frictional forces
The IMA of a lever can be calculated starting from the assumption that all the input work is transformed into output work with no loss of energy, therefore: C
Working as a team to design a skyscraper would most satisfy which of these personal benefits of work? for odyssey
1.a want
2.being with others
3.feeling respected
4.earning money
Answer:
The answer for Odyssey is B: Being with others.
Explanation:
Answer:
The answer to this question is:
Being With Others
Multi lane roads use __ to divide lanes of traffic moving in the same direction.
A. White lines
B. Yellow lines
C. Diagonal stripes
D. Orange stripes
Answer:
A. White lines
Explanation:
Multi lane roads use White lines to divide lanes of traffic moving in the same direction.
While driving, we occasionally see certain types of lines on the road.
There are various sorts of roads. There might be single lanes, double lanes, multilane lanes, etc. Similar to how the lines that we see on these lanes are different.
White broken lines are used to divide the lanes when there are several lanes travelling in the same direction, typically three or four lanes. Depending on the speed and traffic in the lanes, people can change from one lane to another.
However, there are also some locations on the highways where these crooked lines solidify, at which point it is illegal to change lanes until the crooked white lines are once again visible.
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According to kirk,What are the main problems that the central artery project is trying to solve ?
Answer:
According to kirk, this project was developed to solve traffic congestion and construction designs on the Boston's historically tangled streets which were laid out long ago.
Who is part of the design team in construction?
Answer:
An architect and engineers are the design team for construction projects. The team itself can also consist of an architectural company and an engineering firm that hires many architects or engineers.
Explanation:
The design team comprises the professionals needed to design the work and perhaps ensure that the work completed follows the project brief.
Designers are likely in the first place to be members of the customer's consultant team. This is generally supported by: architects.
Technologists of architecture.
Engineers of the system.
Engineers of infrastructure.
Designers of landscape.
The growing complexity of the building design means, however, that additional expertise such as: specialized facilities (e.g., kitchens, operating theatres, ponds, recording studios) is increasingly needed.
Designer of materials (for example, structural systems, doors and windows, vitreous or flooring).
Fittings and specialist equipment.
Equipment for audiovisuals.
Facilities for Information and Communications (ITC).
Facilities for safety and security.
Specialist systems (e.g. handling of baggage).
Lighting specialist.
Acoustic environment. Acoustic environment.
An advantage presented by Straight in space is that___.
so what is a wole numbe