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2 years ago

Examine each of the four circles containing molecules.

Physics

1 answer:

Svetlanka [38]2 years ago

3 0

Answer:

Explanation:

Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.

And in D you can see that they are different types of molecules that are not chemically boned because they are compound and molecule

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WRONG ANSWERS WILL BE REPORTED

denpristay [2]

Answer:

1 = C

2 = B

Explanation:

6 0

3 years ago

If you were trying to build a soundproof room, which of the following materials would you choose in order to absorb the most sou

leonid [27]

Explanation :

Absorption coefficient of a material determines how much sound is absorbed by the material.

To build a soundproof room, Heavy curtains and carpet can be used. They reduce reverberation.

Reverberation means an echoing sound which persists for some time. For example, when we bang on a huge piece of metal, we hear the reverberation even after we stop banging.

Hence, option (A) and (D) are correct.

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4 years ago

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when a hockey stick strike a hockey puck and sends it towards the goalie, (thermal, mechanical) energy is being transferred from

velikii [3]

Answer:

Yes... definitely true.. can you tell me what is the question..

Explanation:

Please mark me brainliest :D

And also.. I would appreciate it if you give me 5 stars and a thanks.. :D

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2 years ago

Water flows over a section of Niagara Falls at the rate of 1.4 × 106 kg/s and falls 49.8 m. How much power is generated by the f

Ad libitum [116K]

Answer:

Power= 6.84×10⁸ W

Explanation:

Given Data

Niagara falls at rate of=1.4×10⁶ kg/s

falls=49.8 m

To find

Power Generated

Solution

Regarding this problem

GPE (gravitational potential energy) declines each second is given from that you will find much the kinetic energy of the falling water is increasing each second.

So power can be found by follow

Power= dE/dt = d/dt (mgh)

Power= gh dm/dt

Power= 1.4×10⁶ kg/s × 9.81 m/s² × 49.8 m

Power= 6.84×10⁸ W

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3 years ago

Identify the part labeled 1, 2, 3, 4, and 5 of the central nervous system.

Sindrei [870]

How are we supposed to help answer this if we can't see what parts are labeled?

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3 years ago