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notsponge [240]
2 years ago
6

The spring is now compressed so that the unconstrained end moves from x=0 to x=L. Using the work integral W=∫xfxiF⃗ (x⃗ )⋅dx⃗ ,

find the work done by the spring as it is compressed. Express the work done by the spring in terms of k and L?

Physics
1 answer:
Savatey [412]2 years ago
4 0

solution:

the spring force exerted by spring with spring constant k is given by

F(x)=-kx

where k is spring constant

and x is deformation of spring

in order to calculate word done by the spring

W=\int\limits^L_0 {} \, dW

the work done by the spring as it is compressed from x=0 to x=L

W=-kx^2/2

inserting the limits x=0 and x=L

we get work done in terms of k and L

ANSWER

W=-kL^2/2

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The Jovian planets formed beyond the Frostline while the terrestrial planets formed in the Frostline in the solar nebular

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The Jovian planets formed beyond the Frostline. This is an area that can support the planets that were made up of icy elements. The large size of the Jovian planets is as a result of the fact that the icy elements were more in number than the metal components of the terrestrial planets.

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Answer:

15.67 seconds

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A girl is shown at position A on a swing when the seat is directly below the support bar. The seat is then at height A as shown
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Answer:

<u></u>

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  • <u>2. As the swing moves from point B to point A, the kinetic energy is increasing.</u>

Explanation:

Even though the syntax of the text is not completely clear, likely because it accompanies a drawing that is not included, it results clear that the posittion A is where the seat is at the lowest position, and the position B is upper.

The gravitational <em>potential energy </em>is directly proportional to the height of the objects with respect to some reference altitude. Thus, when the seat is at the position A the swing has the smallest potential energy and when the seat is at the <em>position B the swing has the greatest potential energy.</em>

Regarding the forms of energy, as the swing moves from point B to point A, it is going downward, gaining kinetic energy (speed) at the expense of the potential energy (losing altitude). When the seat passes by the position A, the kinetic energy is maximum and the potential energy is miminum. Then the seat starts to gain altitude again, losing the kinetic energy and gaining potential energy, up to it gets to the other end,

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