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zvonat [6]
3 years ago
9

ASAP Will give brainlist . As a scientists have learned more about atoms , models of atoms have changed. One of the first atomic

was a solid ball , such as a marble .
What are two limitations of using a marble to model an atom?
A - The model is not made of commonly available materials or objects.
B - The model does not move or behave like a real atom.
C - The model does not show the true size of an atom.
D - The model is much harder to see than a real atom.
Physics
1 answer:
Anestetic [448]3 years ago
7 0

Answer:

B - The model does not move or behave like a real atom.

Explanation:

The solid ball does not show how the nucleus is composed of protons and neutrons, or the relationship between the electrons and the nucleus.

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Please help
Hitman42 [59]

Answer:

3200 m/s

Explanation:

The speed of Sound through Argon is 319.

The speed of sound in any chemical element in the fluid phase has one temperature-dependent value. In the solid phase, different types of sound wave may be propagated, each with its own speed: among these types of wave are longitudinal (as in fluids), transversal, and (along a surface or plate) extensional.

If argon could exist as solid, then 3200 m/s is the best speed.

7 0
3 years ago
Read 2 more answers
Pour chacune des réactions chimiques
Doss [256]

Answer: Me non espanol

Explanation:

4 0
3 years ago
How does the volume occupied by a cubic centimeter compare with the volume occupied by a millimeter
zimovet [89]
One cubic centimeter and one milliliter are equal volumes.
8 0
3 years ago
How many significant figures should be written in the sum 4.65g +9.032g+580.0078+540.439g?
Ne4ueva [31]

Answer: 1.13 X 10^3 g or 1130 g

Explanation: When you add up everything, you will get 1134.1288 g = 1.11341218 X 10^3. But while adding significant figures, we always look for the least significant figures (here 4.65 has least sig. figures  i.e. 3) and take that as a reference to how many significant figures we should have in the answer. (Pretty hard to explain!) Hope you got it!!

7 0
3 years ago
A machine designed to stretch a stiff spring uses 1,550 J of energy to stretch the spring. If the work output is 1,200 J, what i
lapo4ka [179]

Answer:

77%

Explanation:

efficiency= work output/work input X 100%

e = 1,200j/ 1,550 j x100%

e = 1,200/1,550= 0.77

e = 0.77 x 100%

e = 77%

8 0
3 years ago
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