2 years ago

Thermal energy is the _____ of the kinetic and potential energies of all particles in an object.

Physics

1 answer:

Sphinxa [80]2 years ago

3 0

Thermal energy is the force of the kinetic and potential energies of all particles in an object

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3 years ago

Assume it takes 10 J to stretch a spring 10 cm beyond its natural length. Find the work required (in Joules) to stretch the spri

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Answer:

W = 30 J

Explanation:

given,

Work done = 10 J

Stretch of spring, x = 0.1 m

We know,

dW = F .dx

we know, F = k x

$\int dW = \int_0^{0.1} k.x dx$

$W = \int_0^{0.1} k.x dx$

$W = k[\dfrac{x^2}{2}]_0^{0.1}$

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W = 1000 x 0.03

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Hence, work done is equal to 30 J.

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