PROBLEMA DI FISICA:il volume di un attizzatoio da camino in ferro, a temperatura ambiente (20°C), è 12,2 cm cubi. A contatto con
1 answer:
Responder:
20.3 ° C
Explicación:
According to Charles's Law: when the pressure on a sample of dry gas remains constant, temperature and volume will be directly proportional.
Step one:
given data
Temperature T1 = 20 ° C
Temperature T2 =?
Volume V1 = 12.2 cm ^ 3
Volume V2 = 12.4 cm ^ 3
Apply the relation between temperature and volume
substituting we have
Cross-multiplying we find
Temperature of the embers 20.3°C
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Answer:
(a). The distance traveled is 7.06 km towards the west.
(b). Their displacement magnitude is 7.51 km.
Explanation:
The information given states that,
The geese initially move 4.0 km directly west, then alter course to the north at a 40° angle, covering an additional 4.0 km.
Based on the diagram,
(a). To determine the distance
We will apply the distance formula
Insert the values into the equation
The resultant distance is 7.06 km westward.
(b). We will find the total displacement's magnitude
Using the displacement formula
Insert the values into the equation
The total displacement magnitude is 7.51 km.
In conclusion, (a). The traveled distance is 7.06 km towards the west.
(b). The magnitude of their total displacement is 7.51 km.
Response:
(a)
(b)
Clarification:
Greetings.
(a) In this case, since the starting volume is 18.5 dm³ and the ending volume is 21 dm³ (18.5 +2.5), we can calculate the work at constant pressure as shown below:
This value is negative as it expands against the given pressure.
(b) Furthermore, if the process is conducted reversibly, the pressure might change, hence, we need to calculate the work using:
The moles are calculated based on the provided mass of argon:
Consequently, the work amounts to:
Best regards.