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Kaylis [27]
3 years ago
11

pulling one of the balls away from the other. To pull a ball away, click on the ball and drag it. What happens to the force arro

ws between the two balls? What does this mean in terms of gravity?
Physics
2 answers:
Soloha48 [4]3 years ago
7 0
Gravity.: Gravity is the force that acts at a right angle to the path of an orbiting object.
Komok [63]3 years ago
7 0

Answer:

On Plato.

When the distance between the balls increases, the size of the arrows decreases. This shows that the gravitational pull between the balls also decreases.

Explanation:

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Answer:

a) 17.81 J/K

b) 33.325 J/K

Explanation:

The expression to use here is the following:

ΔS = Q/T

Where:

Q: heat released or absorbed

T: Temperature in K

Now, in order to do this, we need to gather the data. We know that the temperature in part a) is above the freezing temperature of water, which is 0 ° C or 273 K. and the mass of the ice cube is 14.6 g.

a) Using the water heat of fusion (Cause it's melting), we can calculated the heat released using the following expression:

Q = m * Lf

Lf = 333,000 J/kg

Solving for Q first we have:

Q = (14.6 / 1000) * 333,000

Q = 4,861.8 J

Now, the entropy change is:

ΔS = 4,861.8 / 273

ΔS = 17.81 J/K

b) In this part, we follow the same procedure than in part a) but using the water heat of boiling (Lv = 2,256,000 J/kg), the temperature of boiling which is 100 °C (or 373 K) and the mass of 5.51 g (0.00551 kg)

Calculating the heat:

Q = 0.00551 * 2,256,000 = 12,430.56 J

Now the entropy change:

ΔS = 12,430.56 / 373

ΔS = 33.325 J/K

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