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erma4kov [3.2K]
4 years ago
14

Molecules are made up of: A. elements B. compounds C. protons

Physics
2 answers:
Sidana [21]4 years ago
6 0
Atoms make up molecules
natka813 [3]4 years ago
5 0
A.) Elements
Molecules are made up of Elements. Elements are another way of saying atoms, the building block of all structures.
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. Assume you have a dot grid with 36 dots per sq.in. How many acres are represented by each dot using the following map scales:
elixir [45]

Answer:

a) 0.069 acres

b) 0.114acres

c) 17.78acres

Explanation:

1 dot=1/36sqin

a) 1 sqin= 330×330=108900ft^2

1 dot=108900/36 =3025ft^2

Converting to acre,divide by43560

3025/43560 =0.069acre

b) 1 chain =22 yards

25×22=550yards

Converting to acre divide by 4840

550/4840 =0.114acre

c)1 sqmile =640acres

(1/36) ÷ 640

640/36

17.78acres

4 0
3 years ago
What happens when visible light strikes a surface?
Amiraneli [1.4K]
Absorption: 

<span>If the wavelength of the light happens to match the distance between two electron levels in the material, it can be absorbed. Light disappears and its energy becomes part of the heat energy of the material. </span>

<span>Metals have so many free electrons that all wavelengths are absorbed -- they are opaque to xrays, visible light, radio waves, everything. </span>
<span>Pigments have specific electron gaps that absorb only the light of a specific wavelength, which we see as color </span>
<span>Transparent materials do not happen to have any gaps between electron levels that match any of the wavelengths of visible light. </span>
6 0
3 years ago
Q.01 When charging a secondary cell, energy is stored within a dielectric material using an electric field. True or False
Nitella [24]

True, when charging a secondary cell, energy can be stored within a dielectric material using an electric field.

<h3>Relationship between dielectric material and electric field</h3>

The electric field in a capacitor separates the negative and positive charges in the dielectric material, this causes an attractive force between each plate and the dielectric.

The dielectric material can store electric energy due to its polarization in the presence of external electric field, which causes the positive charge to store on one electrode and negative charge on the other.

Thus, when charging a secondary cell, energy can be stored within a dielectric material using an electric field.

Learn more about dielectric material here: brainly.com/question/17090590

4 0
3 years ago
A particle undergoes a displacement δr⃗ of magnitude 54 m in a direction 42 ∘ below the x axis.
Elina [12.6K]
Please elaborate more on your question so I can help you
8 0
3 years ago
Molecules are bonded together in which of the following states of matter?
Inessa05 [86]
Solid is one of the three main states of matter, along with liquid and gas. Matter is the "stuff" of the universe, the atoms, molecules and ions that make up all physical substances. In a solid, these particles are packed closely together and are not free to move about within the substance.
6 0
3 years ago
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