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zzz [600]
3 years ago
13

What type of energy does a rock resting on top of the hill have?

Chemistry
2 answers:
fomenos3 years ago
5 0
The answer is C potential energy, hope this helps :)
GenaCL600 [577]3 years ago
4 0
C is the answer to the problem
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I need someone to help me with this. PLEASE, I'M BEGGING YOU
musickatia [10]

Answer:

D. 25%

Explanation:

8 0
3 years ago
An empty Erlenmeyer flask weighs 241.3 g. When filled with water (d = 1.00 g/cm³), the flask and its contents weigh 489.1 g.
Viefleur [7K]

The answer is- Mass of flask = 608.04 g

Density (d) is defined as mass of substance divided by its volume. Thus, if mass and density are known, then Volume can be determined.

What is the formula of  mass in terms of density?

  • Let mass of substance be 'm' and volume be 'V'. Thus, as per the definition of density, it is expressed as-

d = \frac{m}{V}

Thus, mass can be expressed as-

m = d * V

  • Now, mass of empty flask = 241.3 g and the mass of  (flask + Water) = 489.1 g.

Thus, mass of water = 489.1\ g- 241.3\ g = 247.8\ g.

  • Thus, mass of water = 247.8 g and density of water =1.00\ g/cm^3. Its volume is calculated as-

V = \frac{247.8\ g}{1.00\ g/cm^3}=247.8\ cm^3

  • Volume of flask = 247.8 cm^3 .
  • Then when this flask is filled with chloroform (d =1.48 g/cm^3), the mass of chloroform is-

m = d * V = (1.48\ g/cm^3) * (247.8\ cm^3)= 366.74\ g

  • Hence, the mass of flask becomes =241.3\ g + 366.74\ g = 608.04\ g

To learn more about Density and mass, visit:

brainly.com/question/952755

#SPJ4

4 0
1 year ago
Which of the following is best revealed by the Bohr Model? .
valentina_108 [34]
The best answer among the following choices would be the fourth option D).
3 0
3 years ago
Which of the following orbits the nucleus?
Umnica [9.8K]
Electrons orbit the nucleus
8 0
3 years ago
Read 2 more answers
3.
zheka24 [161]

Answer:

They are called downbursts.

5 0
3 years ago
Read 2 more answers
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