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3 years ago

A textbook is pushed across a desk. It experiences what type of force

Physics

1 answer:

In-s [12.5K]3 years ago

3 0

Answer:

kinetic friction force

Explanation:

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A particle of unit mass moves in a potential V(x)= ax^2+b/x^2 . Where a and b are constnts. Calcuate the angular frequency of sm

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Explanation:

Given

Potential Energy is given by

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And Force is given by

$F=-\frac{\mathrm{d} U}{\mathrm{d} x}$

Particle will be at equilibrium when Potential Energy is either minimum or maximum

$F=-\left ( 2ax-\frac{2b}{x^3}\right )$

i.e. $ax=\frac{b}{x^3}$

$x_0=(\frac{b}{a})^{0.25}$

So angular Frequency of small oscillation is given by

$\omega =\sqrt{\frac{U''(x)}{m}}$

for $m=1$

we get $\omega =\sqrt{\frac{U''(x_0)}{1}}$

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3 years ago

A technique in which people use machines to learn how to control their bodies is known as __________.

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4 years ago

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In 40 words or fewer, summarize the connection between kinetic and thermal energy.<br> PLEASE REPLY

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3 years ago

Meeta used an elastic tape to measure the length of her window to stitch a curtain. Do you think she will be able to stitch a cu

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Explanation:

She will not be able to measure the length of her window accurately due to instrumental error from her choice of instrument. The elastic nature of her tape would alter the measurement because it will stretch as she is taking her readings, thus reducing the true measurement of the length of her window.

To measure the length of her window, she could use an inelastic tape rule or a metre rule. These instruments would eliminate instrumental error.

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3 years ago

A textbook is pushed across a desk. It experiences what type of force ​

A textbook is pushed across a desk. It experiences what type of force