Answer:
4E
Explanation:
4E
Explanation:
From the question given above, the following data were obtained:
Initial elongation (e₁) = 4 cm = 4/100 = 0.04 m
Initial energy (E₁) = E
Final elongation (e₂) = 0.04 + 0.04 = 0.08 m
Final energy (E₂) =?
The energy stored in a s spring is given by:
E = ½Ke²
Where
E => is the energy
K => is the spring constant
e => is the elongation
From:
E = ½Ke²
Energy is directly proportional to the elongation. Thus,
E₁/e₁² = E₂/e₂²
With the above formula, we can obtain the final energy as follow:
Initial elongation (e₁) = 0.04 m
Initial energy (E₁) = E
Final elongation (e₂) = 0.08 m
Final energy (E₂) =?
E₁/e₁² = E₂/e₂²
E / 0.04² = E₂ / 0.08²
E / 0.0016 = E₂ / 0.0064
Cross multiply
0.0016 × E₂ = 0.0064E
Divide both side by 0.0016
E₂ = 0.0064E / 0.0016
E₂ = 4E
Therefore, the final energy is 4 times the initial energy i.e 4E
Answer:
4e is the answer
Which of these is an example of a service job?
(A) the person who makes sports cars in a factory
(B) the person who grows apples in an apple orchard
(C) the person who rotates the tires on your car
(D) the person who builds downtown office buildings
Answer:
brainllest if right
A
Explanation:
which statement regarding vessel maintenance is true?
A- When storing a vessel for a long time, it is best to keep it in the sun and uncovered
B- when cleaning a vessel, use regular household detergents and cleaners
C- When replacing electrical parts on a vessel, never use automotive parts
D- When preparing your vessel for cold weather, use antifreeze that contains ethylene glycol
The true statement is that when a person is person is preparing their vessel for cold weather, then it's important to use antifreeze which contains ethylene glycol.
During cold weather, it's common for vessels to have their parts or engine frozen due to the weather.
The freezing of the engine can lead to an accident or spoil the vessel. Therefore, it is advisable to use ethylene glycol since it's an antifreeze and using it can prevent an accident or spoilage of the parts of the vessel.
Therefore, the correct option is D.
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This is various straps secured on a worker to distribute the fall arrest forces. What is depicted in the image?
A) Full-body harness
B) Connector
C) Anchor and anchor connector
Answer:
C) Anchor and anchor connector
This is various straps secured on a worker to distribute the fall arrest forces. In this image Anchor and anchor connector is depicted. Thus, option C is correct.
What is personal fall arrest system (PFAS)?A personal fall arrest system (PFAS) is made up of three major parts: a full-body harness, a shock-absorbing lanyard or retractable lifeline, and secure anchors. A personal fall arrest system (PFAS) is made up of three major parts: a full-body harness, a shock-absorbing lanyard or retractable lifeline, and secure anchors.
Body harness: Straps that can be wrapped around an employee to distribute fall arrest forces across at least the legs, pelvis, midriff, chest, and shoulders, with the ability to connect to other parts of a personal fall arrest system.
Lifeline is a component comprising of an adjustable line connected vertical direction to an anchorage at one side (vertical lifeline) or horizontally to anchorages at both ends (horizontal lifeline) and used to connect other parts of a personal fall arrest system to the anchorage.
Thus, option C is correct.
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When you accelerate, the size of the front tire patch becomes____
Answer:
Larger
Explanation:
When a vehicle is accelerated, the weight of the vehicle and the driver is transferred to the front of the rear of the car.
This transferred weight is nothing but the additional weight that presses the car's suspension in the downward direction thereby affecting tire contact patch in the rear due to which the rear tires loses adhesion.
When you accelerate, the size of the front tire patch becomes larger.
It should be noted that to develop the power to accelerate quickly, an internal combustion engine is vital. When a vehicle is accelerated, the weight of the vehicle and that of the driver will be transferred to the front of the vehicle.
Therefore, when you accelerate, the size of the front tire patch becomes larger since the transferred weight is additional weight.
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Which type of engineer specializes in the identification of mineral-rich deposit areas?
geological engineers
ocean engineers
aerospace engineers
mining engineers
Determine the tensile stress in psf that a plate exerts on the ground if it has a cross sectional area of 100 and an axial force of 3,494 pounds pushing against it.
Round to three decimal places.
Answer:
Tensile stress = 34.94 pound per square unit
Explanation:
Given values:
Cross sectional area of plate = 100
Axial force on plate = 3,494 pounds
Find:
Tensile stress
Computation:
Tensile stress = Force / Cross section Area
Tensile stress = Axial force on plate / Cross sectional area of plate
Tensile stress = 3,494 / 100
Tensile stress = 34.94 pound per square unit
please answer got 2 minutes
Answer:
answer is option (C)
that is 60°
When is a handrail required for stairs?
Select the best option.
After 3 steps
After 4 steps
After 8 steps
After 11 steps
Answer: after 4 steps :)
Explanation:
A handrail is required after 4 steps. Thus, option second is correct.
What is handrail?A handrail is a rail that is intended to be grabbed by the hand for safety or support. Handrails are known as banisters in the United Kingdom. In a restroom or comparable location, handrails are typically utilized to give physical support or to hold garments.
A railing is necessary if the stair has at least four risers. Handrails must be 30 to 38 inches in length, measured from the leading edge of the stair tread.
Stair railing system: If the system's height is between 36 and 38 inches, the top rail can also act as a handrail. After four steps, a handrail is required. As a result, option two is correct.
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Which of the following parts tells the transmission how fast or slowly a vehicle is going? A) pump
B) governor
C) manifold
D) vacuum modulator
How does the Ivanpah Solar Plant make electricity?
In a wire, when elongation is 4 cm energy stored is E. if it is stretched by 4 cm find the energy stored
“In a trusting relationship, confidential information is kept confidential.” Explain what the limits to confidentiality are and give an example.
How do engineering and technology impact the natural world and environment
Answer:
Answer to the following question is as follow.
Explanation:
Civil engineering industrial development projects have a significant influence on the environment, particularly in terms of excessive noise, environmental pollution, and land shrinkage.
Engineers have totally transformed our environment, from contemporary dwellings to bridges, space flight, automobiles, and cutting-edge mobile technologies. Engineers utilise their expertise to build new and exciting prospects and address any difficulties that may occur, and they employ their innovative ideas to accomplish so.
what is a milling machine
Answer:
Milling machines are a type of machinery for removing material from a workpiece using rotary cutters. These machines can drill, bore, and cut an array of materials.
Explanation:
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Coderz Amazon challenge answers
Technician a says that if a tapered roller bearing is adjusted to loose
Which type of modeling can create virtual designs that can save clients thousands of dollars?
sketch models
prototypes
industrial programs
computer programs
Answer:
I think prototype
Explanation:
I hope this helps
Which option identifies the next step Kristin should take to test the design in the following scenario?
During the design process, Kristin determined that her new automatic-loading pencil sharpener is ready to be tested. She is still concerned that there may need to be some changes before the prototype is created.
She should create a prototype that is flexible enough to make changes to if needed.
She should create a two-dimensional sketch to ensure she has not missed any information.
She should make any changes she feels are necessary before designing a model.
She should create a model using cutting-edge technology programs.
Answer:
The person above is wrong. The correct answer would be She should create a model using cutting-edge technology programs.
Explanation:
Got 100%
Which of the following identifies a criterion needed to become a civil engineer?
a master’s degree in a specialized field
previous government experience
a Professional Engineering license
experience with a private architectural firm
Answer:
C) a Professional Engineering license
What is planning in pretech
Answer:
Planning is the process of thinking about the activities required to achieve a desired goal. ... It is the first and foremost activity to achieve desired results. It involves the creation and maintenance of a plan, such as psychological aspects that require conceptual skills.
What is the purpose of primary manufacturing processes?
A.
converting raw materials into finished products
B.
finishing or perfecting a final product
C.
converting raw materials to a more usable form
D.
manufacturing a desired product
Answer:
A
Explanation:
Renewing old material
Answer:
A
Explanation:
The answer is A
How is gravitational energy converted into other forms
Answer:
Gravitational potential energy is energy due to an object's position. An object in the air has gravitational potential energy because when released, it will begin to move and convert its stored energy into movement, or kinetic energy. ... Other forms include thermal energy, which we know as heat, and sound.
Which of the following is a clear indicator that the tire is at the end of its legal life?
Select one:
A. Out-of-Balance Conditions
B. Tread depth above the level of built-in wear indicators
C. Low tire pressure
D. Tread depth below the level of built-in wear indicators
Answer:
Option D, Tread depth below the level of built-in wear indicators
Explanation:
The legal life of tire is checked by looking out for tread wear indicators. In general, tread wear indicators are nothing but small bars of width of 5 mm. These bars are built in the main grooves of the tires.
If the tire tread is at the top level of the tread wear indicating bar, then it means that tires have reached the legal limit of tire death (1.6 mm)
Hence, option D is correct
Which of the following are hazards associated with portable ladders?
A) Ladder is not positioned correctly
B) Ladder is too long
C) Ladder is not tied off correctly
D) Unsteady ladder
Answer:
A,C, and D
Explanation:
Potible ladders have to configure with many designs in mind but the most evedent is that they are usally unstable
BRAINLIEST PLS
The following are the hazards associated with portable ladders are:
A) Ladder is not positioned correctly
C) Ladder is not tied off correctly
D) Unsteady ladder
What are portable ladders?Portable ladders are those ladders that can be folded and light weighted and made up of plastic or steel. They are portable to be used in homes and indoors.
They are easy to transport and easy to work with because they are lightweight, and they take less space to put them. But as they are lightweight, they will easily fall down.
They contain support behind them, they don't need to tie down and need support, so there are chances of being it unsteady.
Thus, the hazards associated with portable ladders are:
A) Ladder is not positioned correctly
C) Ladder is not tied off correctly
D) Unsteady ladder
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