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son4ous [18]
3 years ago
5

HELP.

Physics
1 answer:
Radda [10]3 years ago
6 0

-- <em>Mechanical waves DO</em> require a medium in order to travel from place to place.  (Sound can't travel without some material to travel through on the way.)

-- <em>Electromagnetic waves do NOT</em> need a medium in order to travel from place to place.  (Sunlight reaches us from the Sun without anything to travel through on the way.)

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natali 33 [55]
<h2>Hello!</h2>

The answer is: A. 4.5 L

<h2>Why?</h2>

According to the conversion factor which states that:

1gal=3.78L

It means that we have 3.78 L per each gallon or it's equal to say that we 0.26 gallon per each L.The SI unit for liquid volume is the Liter (L)

Let's make the calculations:

1.2 gal*\frac{3,78L}{1gal} =4,54 L

So, we have 4.54 L in 1,2 gallons.

Have a nice day!

7 0
3 years ago
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lutik1710 [3]

Answer: Virtual, upright and diminished.

Explanation:

A transparent material that focuses or diverges light is known as a lens. There are mainly two types of lens: concave lens and convex lens. Other lens can be made using combination of these two and plane one.

A concave lens is a diverging lens. It means the light from any real object after passing through this lens appears to diverge from the focus. A image formed by a diverging lens is virtual, upright and diminished.


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3 years ago
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babymother [125]

Newton’s First Law of Motion - if an object is at rest, it takes un-

balanced forces to make it move. Conversely, if an object is moving

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1.70

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