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3 years ago

Effect of Heat on Matter Chemical Physical Change Change

Physics

1 answer:

Oduvanchick [21]3 years ago

7 0

Answer:

<h3>⭐Application of heat to certain substances causes only physical changes in which no new substance or substances are formed. Application of heat to some substances causes chemical changes, or chemical reactions, in which one or more new substances are formed, with different properties from the original.</h3>

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Tidal Forces near a Black Hole. An astronaut inside a spacecraft, which protects her from harmful radiation, is orbiting a black

arlik [135]

Answer:

$833.4801043*10^6N$ on ear that is closer to Black hole.

$13.83803929*10^6N$ On ear that is farther from Black hole.

Explanation:

This problem can be solved as two masses that are at two different location from a bigger mass whose gravity affects both.

tension is an equal and opposite force that is exerted in response to applied force.

so on ear that is closer to black hole would have tension that is equal in magnitude and opposite in direction to gravitational force that ear experience due to the black hole at that location.

this true for ear that is further away from black hole as well.

(1) Force on ear that is closer to black hole.

$F =\frac{m_{1}*m_{2} }{r^2} G$

$m_{1}= 5*1.989*10^30kg$ is mass of Black hole.

$m_{2}= 0.030kg$ is mass of ear that is close to black hole.

$G = 6.679*10^-11m^3*kg^-1*s^-2$

r = $120km-\frac{6}{100000} km=119.99994km=119999.94m$

Note, we have subtracted because ear is closer to black hole.

plugging all this in formula gives.

$F = 833.4801043*10^6N$

That is tension of ear.

(2) Force on ear that is further from black hole.

$F =\frac{m_{1}*m_{2} }{r^2} G$

$m_{1}= 5*1.989*10^30kg$ is mass of Black hole.

$m_{2}= 0.030kg$ is mass of ear that is close to black hole.

$G = 6.679*10^-11m^3*kg^-1*s^-2$

this time r is further away from black hole so it would be.

$r = 120km+\frac{6}{100000} km = 120000.06m$

Plugging this all in we get

$F = 13.83803929N$

and that is tension on ear that is further from black hole.

Notice the tension difference, and order of magnitude of tension,it is enormous .

this astronaut is lethally close to black hole.

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3 years ago

Tropism to stimuli could be slow at fast but all plants respond to __?

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4 years ago

Which invention was created to help people with hearing problems? the multiplex telegraph the telephone the phonograph the motio

Nataliya [291]

The phonograph was invented for people with hearing problems. Option D is correct.

<h3>What is a Phonograph?</h3>

It is a device that records sounds or music in the grooves of a plate and plays them.

This was the first invention that can record and play music.

It was invented by Thomas Alva Edison.

This device helps people with hearing problems by allowing them to practice concentrating on a different sound.

Therefore, the phonograph was invented for people with hearing problems.

Learn more about Phonograph:

brainly.com/question/858851

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3 years ago

An unknown noise is generated in a building. Sound waves move toward an open doorway. Waves of which wavelength would diffract t

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what does a velocity vs time graph look like for constant velocity if the speed is 2m/s. And the time is not given.

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3 years ago

Effect of Heat on Matter Chemical Physical Change Change​

Effect of Heat on Matter Chemical Physical Change Change