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irinina [24]
3 years ago
5

If the universe is sufficiently dense, gravity will someday pull it all back together in an event called ________, sort of like

the big bang in reverse.
Physics
1 answer:
AleksandrR [38]3 years ago
4 0

Answer:

Big Crunch.

Explanation:

Big Crunch is defined as the event which defines the universe's ultimate fate, in this process the universe expansion will reverse which causes the cosmic factor will reach to zero and this is followed by an event which causes the reformation of universe with another Big bang.

The Scenario of the Big Crunch hypothesis that the matter density throughout the universe is extremely high and can be say that it sufficiently dense by which, the attraction through gravity is too large which can overcome the universe's expansion and it can be say that it is the big bang in reverse.

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When using a different calorimeter, and mixing 50 ml of hot water at 65 degrees c with 60 ml of water in the calorimete
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The specific heat capacity of the calorimeter used in mixing the water is determined as 21.87 J/g⁰C.

<h3>Conseervation of energy</h3>

The heat capacity of the calirometer is determined by applying the principle of conservation of energy.

Heat lost by the hot water = Heat gained by the calirometer

Q _w = Q_c\\\\M_w C_w\Delta \theta _w = M_c C_c\Delta \theta _c

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mass = density x volume = ρV

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50 \times 4.184 \times (65 - 30.5) = 60 \times C_c \times (30.5 - 25)\\\\7217.4 = 330C_c\\\\C_c = \frac{7217.4}{330} \\\\C_c = 21.87 \ J/g^0C

Thus, the specific heat capacity of the calorimeter used in mixing the water is determined as 21.87 J/g⁰C.

The complete question is below

When using a different calorimeter, and mixing 50 ml of hot water at

65 degrees C with 60 ml of water in the calorimeter at 25 degrees C, the temperature of the calorimeter increased by 5.5 degrees C.

a. Calculate the heat capacity of this calorimeter?

Learn more about heat capacity here: brainly.com/question/16559442

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