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Wewaii [24]
4 years ago
12

What are atoms composed of

Physics
2 answers:
navik [9.2K]4 years ago
8 0

Answer: Atoms are composed of protons, electrons and neutrons.

Explanation:

madam [21]4 years ago
7 0
Protons,electrons, and neutrons
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3 years ago
A package of aluminum foil contains 50. ft2 of foil, which weighs approximately 7.5 oz . Aluminum has a density of 2.70 g/cm3. W
Tems11 [23]

Answer:

The thickness of the foil is 0.017 mm.

Explanation:

Given that,

Weight = 7.5 oz = 212.6175 gm

Density = 2.70 g/cm³

Area of aluminium = 50 ft² = 46451.52 cm²

We need to calculate the thickness of the foil

Using formula of density

\rho=\dfrac{m}{V}

\rho=\dfrac{m}{A\times t}

t=\dfrac{m}{A\times \rho}

Where, A = area

t = thickness

m = mass

Put the value into the formula

t=\dfrac{212.6175}{46451.52\times2.70}

t=0.00170\ cm

t=0.017\ mm

Hence, The thickness of the foil is 0.017 mm.

3 0
4 years ago
Give 2 examples of each major cell group?
lutik1710 [3]

Answer:

The Prokaryotic Cells and The Eukaryotes

5 0
3 years ago
In the nineteenth century, Gregor Mendel first determined some basic rules of genetics that have been observed throughout all ty
Dmitry_Shevchenko [17]

Hi!


The correct option would be A) Mendel’s genetics states laws that are now part of the theory of biological evolution.


When Darwin proposed the idea of biological evolution, which revolved around the concept that favorable genes are naturally selected into a species to ensure survival, his theory was criticized as during that time there was the idea that individual traits of two parents would present themselves as a blend in the offspring.

Gregor Mendel's theory of inheritance supported Darwin's idea as it dealt with the transmission of traits in generations through entities called genes, which were present in pairs for a particular trait.


Hope this helps!

9 0
4 years ago
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A graduate student is trying to follow the weather on Jupiter for her PhD thesis. To see the big weather patterns in the upper a
DaniilM [7]

Answer: large reflector located in orbit above the Earth's atmosphere

Explanation:

Since the student wants to see the big weather patterns in the upper atmosphere of the planet, and she will therefore need to have excellent resolution, the type of telescope that is ideal for her to use is a large reflector located in orbit above the Earth's atmosphere.

It should be noted that the refractor or a radio telescope isn't ideal in this situation as they will not capture the bug weather pattern and doesn't have an excellent resolution like the large reflector.

5 0
3 years ago
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