What substances were found in the innermost regions (within about the inner 0.3 AUAU) of the solar system before planets began to form?

Answers

Answer 1

Answer:

Answer:

Hydrogen and helium compounds.

Explanation:

We know that the solar System was formed around 4.6 billion years ago, due to the gravitational collapse of a giant interstellar molecular cloud.

This cloud is a type of interstellar cloud and its density and size permit the formation of molecules, most commonly molecular hydrogen.

Therefore the principal substances were found before planets began to form are hydrogen and helium compounds, besides Rocks, metals, most of them in gaseous form.

I hope it helps you!

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An oscillating bock-spring system has a mechanical energy of 1.0 J, an amplitude of 0.10 m, and a maximum speed of 1.2 m/s. Find (a) the force constant of the spring, (b) the mass, and (c) the frequency of oscillation.
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Magnet A has twice the magnetic field strength of Magnet B and at a certain distance pulls on magnet B with a force of 100 N. The amount of force that magnet A exerts on magnet B is A. at or about 50 N. B. exactly 100 N. C. more information is needed.

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Answer:

50 N is the correct answer.

Lien uses a spring scale to pull a block toward the right across the lab table. The scale reads 8 N. Which force should Lien conclude is also 8 N?

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Answer

The force on the left across the lab table.

Explanation

The Newton's third law of motion states that; action and reaction are equal but a ct in opposite direction.

When the block of is pulled on the right with a force of X Newtons then there is a force -X Newtons applying and equal force on the left. For every action there must be a reaction with is equal and applying in the opposite direction.

So, if the block is pulled on the right by a force of 8 N there is another equal force applying on the left.

The force to the left of the block on the spring scale

If Earth were twice as far from the sun, the force of gravity attracting the Earth to the Sun would bea. twice as strong
b. half as strong
c. one-quarter as strong.

Can someone explain this one for me ? :)

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one quater as your moving away more!

Longitudinal waves compress the medium they travel though. One example of a longitudinal wave is a

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Answer: Waves in compressed string

Explanation:

Longitudinal waves are waves in which the vibration of the medium is going parallel to the direction of the waves produced by the medium.

Longitudinal wave can occur in compressed string. A compressed string displaced horizontally will transmit wave in the same horizontal direction. That's why they are longitudinal waves.

Answer:

It is sound waves

(I did USAtestprep)

Explanation:

Which is not a way to accelerate an object? A. Speed it up
B. Slow it down
C. Change its direction
D. Apply balanced forces

Answers

Slowing it down is not a way to accelerate an object. The answer is letter B. Speeding it up, changing its direction and applying balanced forces are ways to accelerate the object

I would definitely think its B....

What’s the kinetic energy of the object? Use .Erica is competing in the shot put event at a track meet. She hurls a shot with a mass of 4 kilograms at a speed of 9 meters/second. The shot’s kinetic energy is joules.

Answers

The kinetic energy of an object varies directly with the square of the speed of an object. The required kinetic energy of the shot is f 162 J.

What is Kinetic Energy?

The energy possessed by an object by its motion is known as the object's kinetic energy. It depends on the speed and mass of the given object.

Given data -

The mass of shot put is, m = 4 kg.

The speed of shot put is, v = 9 m/s.

The mathematical expression for the kinetic energy of the shot put is,

$KE = (1)/(2) m v^(2)$