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3 years ago

Which explanation of the solar system best fits the observations of the planets and how they orbit the sun?

Physics

2 answers:

AlekseyPX3 years ago

6 0

Answer: C. The sun and planets formed from a collapsing spinning cloud of gas and dust.

Explanation:

The entire solar system was formed from solar nebula. A nebula is a cloud of dust and gases. When this cloud spins and contracts, a protostar is formed. The temperature rises and nuclear fusion kicks in forming a star. The rest of the matter forms planets and other celestial bodies of the star system. Similarly, the Sun was formed in solar nebula from collapsing of spinning cloud of dust and gas.

NeTakaya3 years ago

4 0

You're right, Answer C

The dust and gas accumulate to form a solar nebula, which later on creates the star and the planets.

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4. The result is that a(n) electric current is induced PLA

andrew11 [14]

The correct answer is:-

alternating.

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3 years ago

Here, mA = 3.65 kg and mB = 7.05 kg. The string connecting the two objects is of negligible mass and the pulley is frictionless.

mr_godi [17]

Answer:

The magintude of the acceleration for both objects is $3.11m/s^2$

Explanation:

Drawing a free body diagram on the two boxes we can analyze the system more easily.

we can take the acceleration going up as positive for reference purposes.

for mA let's suppose that is ascending so:

$T_A-m_A*g=m_A*a$

and for mB (descending):

$T_B-m_B*g=-m_B*a$

$T_A=T_B$

because the two boxes has the same acceleration because they are attached together:

$m_B*g-m_B*a-m_a*g=m_a*a\\(m_B-m_A)*g=(m_a+m_B)*a\\a=\frac{(7.05kg-3.65kg)*9.8m/s^2}{3.65kg+7.05kg}\\\\a=3.11m/s^2$

So the magintude of the acceleration for both objects is $3.11m/s^2$

5 0

3 years ago

What is the mass of 5 moles of gold

Serhud [2]

First of all, we know that one mole is equal to the atomic number of an element.

The atomic number of gold is 197.0g Au

And we need to find 5 moles.

5 * 197.0 g Au = 985.0g

Grams is used to measure mass.

Answer: 985.0g

8 0

3 years ago

Read 2 more answers

A constant magnetic field can be used to produce an electric current. True or False?

Umnica [9.8K]

this question is true

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4 years ago

17- Find the magnitude of vector product \BxĀ| for A=– 23 +3Â and B = 2î – 3+ Å vectors.

aksik [14]

Answer:

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3 years ago