Lifting a bale of cotton is no easy task. Farmer Jones wanted to store the cotton in the loft of his barn but he could not budge
2 answers:
An inclined plane would not be practical because he would still have to push it and the amount of effort and energy would increase. A lever would not be practical because he would have to use his weight to make the bale rise 15 feet. He would also need to make sure that he has a 15 foot ladder in the first place. A screw would not be practical because he would have to drill a hole through the medium and use rotation.
A pulley would be the most practical way of moving the cotton bale. A pulley supports movement and will help the farmer move the bale.
A pulley would be the most practical way of moving the cotton bale. A pulley supports movement and will help the farmer move the bale.
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Answer:
The final pressure in the device is 275 kPa.
Explanation:
Given that,
Amount of argon = 0.6 kg
Initial volume = 0.05 m³
Pressure = 550 kPa
Final volume = 2 initial volume
Temperature is constant.
We need to calculate the final pressure
Using ideal gas
Here, Temperature is constant
So, from equation (I) and equation (II)
Put the value into the formula
Hence, The final pressure in the device is 275 kPa.