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2 years ago

Energy transformation in wound spring of a toy car?give your own answrr

Physics

2 answers:

BaLLatris [955]2 years ago

7 0

Answer:

The work done in winding the spring gets stored in the wound up spring in the form of elastic potential energy (i.e potential energy due to change in shape). ... During this process, the potential energy stored in it gets converted to kinetic energy. This turns the wheels of the toy car.

Explanation:

KIM [24]2 years ago

4 0

Answer:

Both elastic potential energy and kinetic energy at t initial are converted to internal energy t f.

Explanation:

Apply the principle of Conservation of Energy to the system, where friction is present. Between t i and t f, the elastic potential energy in the spring and the kinetic energy of motion are being transformed into internal energy.

(I can't put t and f together because it got censored so that's why there is a space. Usually they are together.)

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Match the events related to the formation of the universe with the stages during which they occurred.

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Answer:

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2 years ago

A+10 u charge and a -10 4C (1 HC - 106 C), at a distance of 0.3 m,

Marina CMI [18]

Answer:

B. Attract each other with a force of 10 newtons.

Explanation:

Statement is incorrectly written. The correct form is: A $+10\,\mu C$ charge and a $-10\,\mu C$ at a distance of 0.3 meters.

The two particles have charges opposite to each other, so they attract each other due to electrostatic force, described by Coulomb's Law, whose formula is described below:

$F = \frac{\kappa \cdot |q_{A}|\cdot |q_{B}|}{r^{2}}$ (1)

Where:

$F$ - Electrostatic force, in newtons.

$\kappa$ - Electrostatic constant, in newton-square meters per square coulomb.

$|q_{A}|,|q_{B}|$ - Magnitudes of electric charges, in coulombs.

$r$ - Distance between charges, in meters.

If we know that $\kappa = 8.988\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}$ , $|q_{A}| = |q_{B}| = 10\times 10^{-6}\,C$ and $r = 0.3\,m$ , then the magnitude of the electrostatic force is:

$F = \frac{\kappa \cdot |q_{A}|\cdot |q_{B}|}{r^{2}}$

$F = 9.987\,N$

In consequence, correct answer is B.

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2 years ago

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Answer: D

Explanation:

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3 years ago

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Explanation

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3 years ago

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Answer:

An external force is a force that acts on an object within the system from outside the system. This type of force is different than an internal force, which acts between two objects that are both within the system. The net external force combines these two definitions; it is the total combined external force

Explanation:

ig the answer is true

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2 years ago

Energy transformation in wound spring of a toy car?give your own answrr​

Energy transformation in wound spring of a toy car?give your own answrr