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Umnica [9.8K]
3 years ago
13

Scientists believe that our solar system formed about 4.6 billion years ago from a cloud of hydrogen, helium, rock, ice, dust, a

nd other material.
True
False
Engineering
2 answers:
Pachacha [2.7K]3 years ago
8 0

Answer:

Scientists believed it. It is hypothesis because it is not yet proved.

Explanation:

Elena-2011 [213]3 years ago
4 0
False
I took that answer and I thought it was true it wasn’t
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The polycarbonate shell functions as all of the following except:
krok68 [10]

Answer:

what are the answers expect what?

Explanation:

Polycarbonate is commonly used in eye protection, as well as in other projectile-resistant viewing and lighting applications that would normally indicate the use of glass, but require much higher impact-resistance. Polycarbonate lenses also protect the eye from UV light.

6 0
3 years ago
A journeyman electrician with 16 years experience on-the-job was removing metal fish tape from a hole at the base of a metal lig
Romashka-Z-Leto [24]

Answer: He should have ensured the following before beginning work;

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3) Technicians and Electrical workers must be instructed to know the unsafe conditions associated with their work.

Explanation:

We cannot assume that because he is experienced he cannot be prone to all this wrong practices. Humans tend to think that with experience people become less prone to errors and study has shown that this is not true. Safety must be a priority.

5 0
3 years ago
Is a gas turbine a heat engine?
Nookie1986 [14]
Gas turbines extract the energy from combustion gas

and heat engines convert thermal and chemical energy to mechanical energy

gas is considered a chemical so i'm pretty sure it is considered one
4 0
3 years ago
Design an Armstrong indirect FM modulator to generate an FM signal with a carrier frequency 98.1 MHz and a frequency deviation △
Bess [88]

Answer:

See explaination

Explanation:

In the Armstrong method of FM generation, the phase of the carrier is directly modulated in the combing network through summation, generating indirect frequency modulation.

Very high frequency stability is achieved through Armstrong method since the crystal oscillator is used as carrier frequency generator.

Please kindly check attachment for the step by step solution of the given problem.

3 0
4 years ago
Match the scenario to the type of green initiative it represents.
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Explanation:

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