What is an astronomical unit?the average distance between planets in the solar system
the average distance between the Earth and the moon
the approximate diameter of the Sun including its atmosphere
the average distance between the Earth and the Sun

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Answer 1
Answer:

Answer:

D

Explanation:


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What properties are those that describe what happens when a substance reacts with another substance?

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The answer is chemical properties :)

Chemical properties due to the changes in both

What if two planets collided with each other but their gravitational force kept them together? Could this be a new form of the Big Bang where they become one and life can still be formed?

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While the idea of two planets colliding and forming a new universe might sound intriguing, it doesn't align with our current understanding of cosmology and the Big Bang theory. Let's break down a few key points:

The Big Bang Theory: The Big Bang theory describes the origin of our universe as a singularity, an incredibly hot and dense point that rapidly expanded, leading to the formation of the universe we know today. It wasn't the collision of two planets or celestial bodies that created the universe, but a highly energetic event on a cosmic scale.

Gravity in the Big Bang: The Big Bang theory doesn't involve the gravitational force keeping two objects together; it involves the rapid expansion of the universe from a hot and dense state. Gravity played a crucial role in the evolution of the universe, causing matter to clump together and form galaxies, stars, and planets over billions of years.

Planet Collisions: Collisions between celestial bodies like planets can indeed happen, and they can lead to significant changes in the affected planets and their surroundings. However, these collisions do not result in the creation of an entirely new universe; they are local events in our existing universe.

Formation of Life: The formation of life on planets is a complex process that involves a combination of factors, including the right environmental conditions, organic molecules, and time. While a planet collision could have profound consequences for life on those planets, it doesn't create an entirely new universe or guarantee the formation of life. In summary, the scenario  described doesn't align with current scientific understanding.

The Big Bang theory describes the origin of our universe, and it doesn't involve the collision of planets. Planet collisions are local events with significant consequences for the affected bodies but do not lead to the creation of a new universe or guarantee the formation of life.

Which occurs during a disequilibrium?

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Disequilibrium occurs when the quantity of supply does not equal the quantity of demand.

The market is experiencing a disequilibrium when the market price is above or below the equilibrium price. Whenever markets experience imbalances—it creates disequilibrium prices, surpluses, and shortages—market forces drive prices toward equilibrium.

A surplus exists when the price is above equilibrium, which encourages sellers to lower their prices to eliminate the surplus.

A shortage will exist at any price below equilibrium, which leads to the price of the good increasing.

For example, imagine the price of dragon repellent is currently $6 per can. People only want to buy 400 cans of dragon repellent, but the sellers are willing to sell 600 cans at that price. This creates a surplus because there are unsold units. Sellers will lower their prices to attract buyers for their unsold cans of dragon repellant.

learn more about disequilibriummarket:

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The headlights are shining on a truck travelling at 100 km/h. The speed of the light from the headlights relative to the road will be:A) c

B) c + 100 km/h

C) c – 100 km/h

D) depends on the temperature, but faster than the speed if the truck was not moving.

E) faster than if the truck was not moving, but impossible to calculate with the given information

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Answer:

A) c

Explanation:

Speed of light is always constant irrespective of the wave source's motion and the observer's inertial frame of reference. So, no matter how fast the car is moving the speed of light will always be constant. The speed of light in air is around 299704644.54 m/s. The meter is also defined by the speed of light as 1 meter is the distance travelled by light in 1/299792458 second.

A, the light generated from the headlights travels at a fixed speed relative to the road

Suggest why signals to satellites are transmitted as slightly divergent beam and not as a parallel beam.

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I can think of two reasons:

1).  EVERY transmitted radio signal is transmitted as
a divergent beam.  We don't have the technology to
transmit it as a perfectly parallel beam.
That's a good thing, because ...

2).  If it were a perfect pencil-thin parallel beam, then
it would be practically impossible to keep it perfectly
aimed at the satellite.


Which of the following is a physical property of wood

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Hard, Brown, Smells of timber or forest

The density, hard, strong, and rough.