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valentinak56 [21]
2 years ago
8

Please help me because i’m trash at these and i need help with five more

Physics
1 answer:
Andrej [43]2 years ago
4 0

Answer:

Explanation:2

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Is a neutron positive ornegative
DIA [1.3K]

Answer:

neither

Explanation:

Neutrons have no charge and have their name because of their "neutral" charge. Protons are positively charged and electrons are negatively charged.

6 0
2 years ago
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A roller coaster has a mass of 450 kgIt sits at the top of a hill with height 49 m. If it drops from this hill, how fast is it g
fgiga [73]

The speed of the roller coater at the bottom of the hill is 31 m/s.

<h3>Speed of the roller coater at the bottom of the hill</h3>

Apply the principle of conservation of mechanical energy as follows;

K.E(bottom) = P.E(top)

¹/₂mv² = mgh

v² = 2gh

v = √2gh

where;

  • v is the speed of the coater at bottom hill
  • h is the height of the hill
  • g is acceleration due to gravity

v = √(2 x 9.8 x 49)

v = 31 m/s

Thus, the speed of the roller coater at the bottom of the hill is 31 m/s.

Learn more about speed here: brainly.com/question/6504879

#SPJ1

6 0
2 years ago
How to convert 8 feet to metres​
ohaa [14]

Answer:

2.4384m

Explanation:

1 ft in m is 0.3048

8ft in m is x

therefore 8ft in m is

8 * 0.3048 = 2.4384

7 0
2 years ago
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Variations in the reactive properties of different organic molecules are most closely associated with _____.
azamat

Answer:

the presence or absence of functional groups

Explanation:

The functional group is the group of atoms that characterize a chemical function and that have well-defined characteristic properties.

In organic chemistry, the functional group is a set of submolecular structures, characterized by a specific elementary connectivity and composition that confers specific chemical reactivity to the molecule that contains them. These structures replace the hydrogen atoms lost by saturated hydrocarbon chains. Aliphatic, or open chain, groups are usually represented generically by R (alkyl radicals), while aromatic ones, or derivatives of benzene, are represented by Ar (aryl radicals).

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3 years ago
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A balloon filled with helium has a small hole on the right side of the balloon. How would Pascal explain why the entire balloon
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Answer:

delete this answer please.

4 0
2 years ago
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