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Scilla [17]
3 years ago
14

An element

Physics
1 answer:
adell [148]3 years ago
8 0
<u />The correct answer is:  [D]:
_______________________________________________________
    "<span>cannot be divided into smaller substances by chemical means<span>" .
</span>_______________________________________________________
     An <u><em>element</em></u><u><em /> </u><em> </em>:  "</span>cannot be divided into smaller substances by chemical means."
_______________________________________________________
You might be interested in
Why dont you fall through walls when you lean against them? provide a scientific explanation to explain your answer.​
kondaur [170]

Answer:

That's why if you lean against the wall, you don't just fall through it. The wall pushes back on you as hard as you push on it, and you and the wall stay in place. If you throw something, you put more force behind it than just leaning on it, so it pushes back with more force.

Explanation:

PLEASE MARK ME AS BRAINLIEST

6 0
3 years ago
A race car rounding a corner at a constant speed of 200 miles per hour.
ICE Princess25 [194]

Answer:

Yes since it is changing direction

Explanation:

A race car rounding a corner at a constant speed of 200 miles per hour

6 0
2 years ago
What will happen if the two plungers are pressed together firmly? Explain your answer.​
steposvetlana [31]

Answer:

This air being forced out causing the air pressure inside to be much lower than that on the outside. As higher air pressure always pushes, it keeps the two plungers together.

Hope that helps. x

3 0
2 years ago
A rock has a mass of 25kg. The acceleration due to gravity is 10m/s and the height of the rock is 42 m. Find the potential energ
alisha [4.7K]

Answer:

 The potential energy of the rock = 10.5 kN

Explanation:

 Mass of rock = 25 kg

 Acceleration due to gravity = 10 m/s²

 Height = 42 m

 Potential energy, PE = mgh, where m is the mass, g is acceleration due to gravity and h is the height.

 PE = 25 x 10 x 42 = 10500 N = 10.5 kN

 The potential energy of the rock = 10.5 kN

7 0
2 years ago
Read 2 more answers
You have two points in a soil. Point A is at 75 cm; point B is at 25 cm above the reference. The capillary potential energy at p
user100 [1]

Answer:

The potential energy at point A is 17.1675 J

Explanation:

The capillary potential is the work expended to bring up a unit mass of liquid to a point in a capillary region from a level liquid surface. It is the capillary potential that facilitates the movement of moisture within soil capillaries

In meteorology it is used to describe the level of saturated soil above the water table

Potential energy is the energy inherent in a body by virtue of its position, therefore the potentials of both point A and B are

Point A, elevation = 75 cm capillary potential = -100 cm

Point B, elevation = 25 cm capillary potential = -200 cm

The total potential energy at point A is

Elevation above reference - capillary potential =75-(-100) = 175 cm

which gives per unit mass

PE = m × g × h = 1 kg × 9.81 m/s ² × 1.75 m = 17.1675 kg·m²/s² = 17.1675 J

8 0
3 years ago
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