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PSYCHO15rus [73]
2 years ago
14

Brian has an object suspended in the air. It has a mass of 100 kg and is 25 meters above the ground. What is the object’s potent

ial energy
Chemistry
2 answers:
MatroZZZ [7]2 years ago
7 0
The answer is 24500 joule
worty [1.4K]2 years ago
5 0

Answer:

P.E = 24500

Explanation:

Potential energy is the energy possessed by a object in a position. An object can store energy as a result of it position. An example is having a ball held upward by a pavement. The stored energy by the ball is known as the potential energy.

Since the object is suspended upward with a height of 25 meters , gravity is involved. Gravitational potential energy is the energy stored by an object as a result of it height.  Gravitational potential energy is dependent by the height which the object is raised and the mass. The higher the height of an object is raised the greater the gravitational potential energy.

The formula for gravitational potential energy is as follows ;

P.E = mass × height ×  gravitational field strength(9.8N/kg)

P.E = mgh

m = 100 kg

height = 25 meters

g = 9.8 N/kg

P.E = 100 × 9.8 × 25

P.E = 24500

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Answer:

The answer is letter C

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2 years ago
When compounds are formed, will its heat give off?​
mariarad [96]

Answer: It depends on the type of chemical reaction that formed the compound.

Explanation:

Exothermic reactions give off the heat to the reaction environment, so the compound feels hotter.

Endothermic reactions absorb the heat from the reaction environment and the compound feels cooler.

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3 years ago
How many moles of KCL is in a 3M solution of KCL
netineya [11]

Answer:

223.6539

Explanation:

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4 0
3 years ago
Whoever awser correct I will give you Brainly
vivado [14]

Answer:

Option A.

2Na + 2H2O —> 2NaOH + H2

Explanation:

To know which option is correct, we shall do a head count of the number of atoms present on both side to see which of them is balanced. This is illustrated below below:

For Option A:

2Na + 2H2O —> 2NaOH + H2

Reactant >>>>>>> Product

2 Na >>>>>>>>>>> 2 Na

4 H >>>>>>>>>>>> 4 H

2 O >>>>>>>>>>>> 2 O

Thus, the above equation is balanced.

For Option B:

2Na + 2H2O —> NaOH + H2

Reactant >>>>>>> Product

2 Na >>>>>>>>>>> 1 Na

4 H >>>>>>>>>>>> 3 H

2 O >>>>>>>>>>>> 1 O

Thus, the above equation is not balanced.

For Option C:

2Na + H2O —> 2NaOH + H2

Reactant >>>>>>> Product

2 Na >>>>>>>>>>> 2 Na

2 H >>>>>>>>>>>> 4 H

1 O >>>>>>>>>>>> 2 O

Thus, the above equation is not balanced.

For Option D:

Na + 2H2O —> NaOH + 2H2

Reactant >>>>>>> Product

1 Na >>>>>>>>>>> 1 Na

4 H >>>>>>>>>>>> 5 H

2 O >>>>>>>>>>>> 1 O

Thus, the above equation is not balanced.

From the illustrations made above, only option A is balanced.

7 0
2 years ago
Salt domes result when: 1. inland seas dry 2.the pressure of overlying rock forces the salt to rise 3. a layer of sedimentary sa
Ilia_Sergeevich [38]

Answer:

Salt domes result when <u><em>the pressure of overlying rock forces the salt to rise. (Option 2)</em></u>

Explanation:

In geology it is called the gently wavy and rounded relief dome.

Salt has some special properties like rock:

  • Salt has a lower specific gravity in relation to a common mineral.
  • Salts deform plastically and are very mobile.
  • Salts have a high water solubility.

These properties allow, if the pressure is very high, that the salt layers move upwards (due to their lower density). That is, the internal forces produce the elevation of the strata by means of the pressure they exert towards a higher point, generating that the salt looks for its way towards the surface [that is, the salt ascends through the sedimentary layers of the earth's crust, crossing them and deforming them] and causing the bulging structure. The oldest strata are located in the central area of the dome, while the most modern are distributed in the farthest radius. The structure is called salt or diapiro dome, the phenomenon by which it is formed is called diapirism.

Finally, you can say that <u><em>Salt domes result when the pressure of overlying rock forces the salt to rise.</em></u>

3 0
3 years ago
Read 2 more answers
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