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wlad13 [49]
4 years ago
13

What technologies are astronomers using to look for life on other planets? Why? help!!! please

Physics
1 answer:
Brilliant_brown [7]4 years ago
6 0
<h3><u>Technology used by astronomers to look for life on other plants:</u></h3>
  • Space-based Hubble and Spitzer telescopes and Green Bank telescopes are used.
  • Many new satellites are launched to trace earth like planets. Even the telescopes are carried by spacecrafts.
  • Astronomers are using Allen Telescope Array that comprises 42 radio antennas to get hold of signals over a wide range of radio frequencies that are tuned to listen to the regions nearer to the red dwarf star constellations.
  • Scientists needed telescopes that are capable of detecting planets like Earth in our planet’s neighborhood and see if any biological signatures connected to any microbial or other intelligent life can be found.
  • Radio signals are also being used to detect if the outside world has something to communicate so that they can be detected.
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What is the effect of pressure on boiling and melting substance?<br>​
Nadya [2.5K]

Answer:

The boiling point of liquids always increases when pressure is applied on a liquid. This is because the molecules of a liquid will need more energy to turn into a gaseous state when pressure is applied on that substance.

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3 years ago
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Using examples, explain why the first and second Newton laws of motion are significant for living organisms.
Triss [41]

Answer:

1) Newton's first law of motion states an object will remain at rest or in uniform will be in uniform motion in a straight line unless a force acts on it

2) Newton's second law states the acceleration of an object is directly proportional to the applied force acting on an object and inversely proportional to the mass of the object

Explanation:

1) With Newton's first law, we are able arrange things within a space and schedule meetings in time knowing that they will remain in place unless an external force changes their positions

2) An example of Newton's second law of motion is that small objects such as a ball are easily accelerated and can be given appreciable acceleration for flight by single, one time contact (such as kicking the ball) while larger objects such as a rock require sustained force application to change their location.

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3 years ago
Hardness is indirectly related to: specific gravity surface roughness strength of chemical bonds weight
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The strength of chemical bonds would be the best answer to this question. Hardness is indirectly related to the strength of chemical bonds. Hardness is the resistance from the destruction of an object itself from a material. Hardness does not need to strength of chemical bonds in order to have this resistance.
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3 years ago
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State the relation between the joule and kilocalories.
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Laser light enters a container of benzene at angle of 43o to the normal line; the refracted laser light makes an angle of 27o wi
Alona [7]

Answer:

<h3>1.502</h3>

Explanation:

Using the snell's law refraction to solve this problem;

According to the law, the ratio of the sine of incidence to the sine of refraction is a constant for any given pair of medium. Mathematically;

n = \frac{sin(i)}{sin(r)}

n is the refractive index of benzene

i is the angle of incidence = 43°

r is the angle of refraction = 27°

Get the index of refraction of benzene;

n = \frac{sin 43^0}{sin 27^0} \\\\n = \frac{0.6819}{0.4539} \\\\n = 1.502

Hence the index of refraction of benzene is 1.502

3 0
3 years ago
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