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3 years ago

An egg cooking on a campfire is an example of

Physics

2 answers:

Brut [27]3 years ago

5 0

B. only an endothermic reaction

OleMash [197]3 years ago

4 0

Answer : The correct option is, (B) only an endothermic reaction.

Explanation :

Endothermic reaction : It is a type of chemical reaction in which the energy is absorbed from the surrounding.

Exothermic reaction : It is a type of chemical reaction in which the energy is released into the surrounding.

From the this we conclude that, the energy is added or absorbed during the egg cooking on a campfire. That means, it is an endothermic process.

Hence, the correct option is, (B) only an endothermic reaction.

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3 years ago

A block rides on a piston that is moving vertically with simple harmonic motion. (a) If the SHM has period 2.68 s, at what ampli

fredd [130]

Answer:

Part a)

$A = 1.78 m$

Part b)

$f = 2 rev/s$

Explanation:

Part A)

As we know that time period of the motion is given as

$T = 2.68 s$

so we have

$\omega = \frac{2\pi}{T}$

$\omega = \frac{2\pi}{2.68}$

$\omega = 2.34 rad/s$

now at the point of maximum amplitude the force equation when Normal force is about to zero is given as

$mg = m\omega^2 A$

so we have

$A = \frac{g}{\omega^2}$

$A = \frac{9.81}{2.34^2}$

$A = 1.78 m$

Part b)

Now if the amplitude of the SHM is 6.23 cm

and now at this amplitude if object will lose the contact then in that case again we have

$mg = m\omega^2 A$

$g = \omega^2 (0.0623)$

$\omega = 12.5 rad/s$

so now we have

$2\pi f = 12.5$

$f = 2 rev/s$

3 0

3 years ago

Which of the following is NOT a correct statement?*

lozanna [386]

AnswerAmontons's law. If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. ... If the gas volume is decreased, the container wall area decreases and the molecule-wall collision frequency increases, both of which increase the pressure exerted by the gas (Figure 1).:

Explanation:

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3 years ago

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Mazyrski [523]

Answer:

I THINK IT'S D....

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3 years ago

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"Newton's book argued that mathematical principles could be applied to our understanding of the natural world" is what Newton's book Mathematical Principles of Natural Philosophy argue about the role of mathematics in understanding the natural world. The correct option among all the options that are given in the question is the last option or option "D". I hope the answer has come to your help.

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3 years ago

Read 2 more answers