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Anastasy [175]
4 years ago
8

Need help with exercises 3,4,5 Will give brainliest!!!

Physics
1 answer:
Harman [31]4 years ago
4 0

I pretty sure that 3 is b and 4 is A and 5 I need a full picture

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Please answer this soon
OverLord2011 [107]

Answer:

lava plateau-material fills in valleys

caldera goes-bowl shaped depression

volcanic soil-rich in nutrients

shield volcano-wide summit, gentle slope

cinder cone-made of pieces of lava

Explanation:

3 0
3 years ago
The reaction between magnesium (Mg) and oxygen (O2) forms magnesium oxide (MgO).
Scorpion4ik [409]

Answer:

2 Mg + O2 = 2MgO

Type: Synthesis

3 0
3 years ago
A beam oflight is reflected off a mirror. If the angle of incidence is 30 degrees, according to the Law of Reflection the angle
zaharov [31]

Answer:

30°

Explanation:

According to the second law of reflection, it States that the angle of incidence i is equal to the angle of reflection r.

The angle of incidence is known to be the angle between the incident ray and the normal.

The Angle of reflection is the angle between the reflected ray and the normal.

This normal ray is a ray that is perpendicular to the surface.

According to the question, if the beam of light is reflected off the surface and its angle of incidence is 30°, its angle of reflection will also be 30° i.e i=r = 30°

7 0
4 years ago
Why are valence electrons so important?
natka813 [3]

Answer:

B. They are the electrons that interact with other atoms.

Explanation:

Valence electrons are the electrons in the outermost shell of an atom. These electrons are used by atoms to form bonds with other atoms during chemical bonding.

  • So, the basis by which atoms interacts with one another is through the valence electrons.
  • Without the valence electrons, atomic combination to form compounds would not be possible.
  • Valence electrons are the most loosely held electrons and they have the lowest ionization energy.
3 0
3 years ago
A glass of root beer with a scoop of ice cream floating on top and a straw sticking out.
vampirchik [111]

Answer:

These forces are all equal and cancel each other out. Gravity pushes downward on the ice cream. This can also be called the weight of the ice cream. Buoyant force pushes the ice cream upward

6 0
3 years ago
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