In a wire, when elongation is 4 cm energy stored is E. if it is stretched by 4 cm, then what amount of elastic potential energy will be stored in it?

Answers

Answer 1

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 2

Answer:

4e is the answer


Related Questions

what is a milling machine

Answers

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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please answer got 2 minutes​

Answers

Answer:

answer is option (C)

that is 60°

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

Answers

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

“In a trusting relationship, confidential information is kept confidential.” Explain what the limits to confidentiality are and give an example.

Answers

The limits are dangerous situation. Ex. Suicidal actions/thoughts, anything that may put yourself, the individual, or anyone else at risk.

How do engineering and technology impact the natural world and environment

Answers

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.

Technician a says that if a tapered roller bearing is adjusted to loose

Answers

The technician is true

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

Answers

C most likely because the rest are wrong

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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In a wire, when elongation is 4 cm energy stored is E. if it is stretched by 4 cm find the energy stored

Answers

The answer is 25 E

We know, potential energy of spring is given by (1/2)kx² where k is spring constant and x is stretched distance.

Here , x=4 cm so, U=(1/2)k*4²=8k

For, x= 4cm :-

E=(1/2)k* 4²= 8k=U.

Final potential energy will be E= U.

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

Answers

A, pump
Hope that helps

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

Answers

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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How is gravitational energy converted into other forms

Answers

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.

What regulates labeling of food, drugs, and cosmetics?

Answers

Answer:

The FDA

Explanation:

The federal food and drug administration.

FDA: the food and drug administration administrators the FPLA with respect to food, drugs, cosmetics, and medical devices

Reverse engineering is not the process of analyzing an existing product to 5 points
determine its function so that a similar product can be developed or the
original product can be improved. *
a True
B False

Answers

true

Explanation:

I order for the engineering process to be reversed it had to developed an product and had to be proved what were used to form the product

It’s true :)
Hope this helps

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

Answers

Answer:

C) a Professional Engineering license

When you accelerate, the size of the front tire patch becomes____

Answers

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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