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alexandr1967 [171]
3 years ago
15

Why might a scientist want to use a model to study the solar system? O A. Its extreme simplicity makes it difficult to see patte

rns in observations. B. Its extremely slow movement makes it difficult to see the motions of different planets. C. Its extremely large size makes it difficult to see all of its parts at the same time. D. Its extremely small size makes it difficult to see planets that are far away​
Physics
2 answers:
ivanzaharov [21]3 years ago
8 0

Answer:

B

Explanation:

igomit [66]3 years ago
3 0

Answer:

C

Explanation:

I’m right just trust

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I really don’t know but I think it’s D

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If the mass of a material is 42 grams and the volume of the material is 15 cm^3, what would the density of the material be?
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Density = mass / volume

Density = 42g / 15cm^3

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Read 2 more answers
An amoeba has 1.00 x 1016 protons and a net charge of 0.300 pC. Assuming there are 1.88 x 106 fewer electrons than protons, If y
Xelga [282]

Answer:

The fraction of the protons would have no electrons =1.88\times 10^{-10}

Explanation:

We are given that

Amoeba has total number of protons=1.00\times 10^{16}

Net charge, Q=0.300pC

Electrons are fewer than protons=1.88\times 10^6

We have to find the fraction of protons would have no electrons.

The fraction of the protons would have no electrons

=\frac{Fewer\;electrons}{Total\;protons}

The fraction of the protons would have no electrons

=\frac{1.88\times 10^{6}}{1.00\times 10^{16}}

=1.88\times 10^{-10}

Hence, the fraction of the protons would have no electrons =1.88\times 10^{-10}

6 0
3 years ago
what device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field
Umnica [9.8K]

Transformer

<u>Explanation:</u>

A transformer is a device with two or more magnetically coupled windings. A time varying current in one coil (primary winding) generates a magnetic field which induces a voltage in the other coil (secondary winding). Transformers are capable of either increasing or decreasing the voltage and current levels of their supply, without modifying its frequency, or the amount of electrical power being transferred from one winding to another via the magnetic circuit. There are two types of transformer:

1. Step up transformer - increases voltage

2. Step down transformer - decreases voltage

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3 years ago
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