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trapecia [35]
4 years ago
13

The table below shows two types of electromagnetic waves and three random applications of electromagnetic waves.

Chemistry
2 answers:
Ilia_Sergeevich [38]4 years ago
6 0

CORRECT ANSWER: GAMMA RAYS-1  AND RADIO WAVES-2

<h2>TOOK THE TEST!</h2>
Reptile [31]4 years ago
4 0
Correct Answer is 1 i.e. Gamma rays—2 and radio waves—3

Reason: 
1) In a hypernova, star<span> as similar to </span>nuclear fusion<span> converts lighter elements into heavy elements. If fusion is not capable of generating enough pressure to counteract gravity, star immediately collapses to form a </span>black hole<span>. During this process, energy will be released, along the axis of rotation to form </span>gamma-ray burst. Such gamma-ray burst was first detected using <span>Fermi Gamma-ray Space Telescope. Thus, gamma-ray is capable of providing information of gravity fields.

2) Radiowaves are capable of inducing transitions that requires less energies. These transition includes nuclear excitation and electron excitation (in rotational energy level). Depending upon the value to Jmax, it is possible to determine the temperature and </span><span>heat released by astronomical objects</span><span>
</span>
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In order to change a solid to a liquid or a liquid to a gas, what is needed?
Roman55 [17]
Answer: increase in thermal heat

explanation: In order to change the state, more energy is needed.
When you want to go from a lower state (solid) to a higher state (liquid) then you need more energy. and more energy means more heat in this case. if it was going from liquid to solid, you would need less thermal energy.
6 0
3 years ago
a man a man weighing 800 and climbs up a flight of stairs to a height of 15 m in 12 seconds what is the man's average power outp
8_murik_8 [283]

Answer:

  1 kW

Explanation:

We assume the man's weight is measured in newtons. Then the power expended is ...

  (800 N)(15 m)/(12 s) = (12000 N·m)/(12 s) = 1000 N·m/s = 1000 W

The man's average power output is 1 kilowatt.

8 0
3 years ago
Does the formation of all chemical bonds is based on sharing of electrons?
Fittoniya [83]
Yes, if we're talking about intramolecular bonds
8 0
4 years ago
Calculate the number of atoms in 2.8 moles of silicon atoms
IceJOKER [234]

Answer:

<h2>1.686 × 10²⁴ atoms</h2>

Explanation:

The number of silicon atoms can be found by using the formula

<h3>N = n × L</h3>

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 2.8 × 6.02 × 10²³

We have the final answer as

<h3>1.686 × 10²⁴ silicon atoms</h3>

Hope this helps you

5 0
4 years ago
A material that conducts thermal energy well is called a thermal
In-s [12.5K]

Answer: Conductor

Explanation: A material that conducts thermal energy well is called a thermal conductor.

8 0
3 years ago
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