In this lab, you will use a magnet and a simple circuit to examine the concepts of electricity and magnetism. Think about how th
2 answers:
The correct answer (sample response) is:
How can magnetic and electric fields be demonstrated?
The statement is a scientific question to address by doing this experiment.
Include the following in your question:
• Mentions magnetic fields.
• Mentions electric fields.
• Allows for objective observations of the effects of these fields.
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Answer:
A= 203 KJ
B= 54 Kg
Explanation:
The initial specific volumes and internal energies are obtained from A-12 for a given pressure and state. The enthalpy of the refrigerant in the supply line is determined using the saturated liquid approximation for the given temperature with data from A-11. The mass that has entered the tank is:
Δm = m₂ – m₁
= V(1/α₂ – 1/α₁)
= 0.05 (1/0.0008935 – 1/ 0.025645)Kg
= 54Kg
The heat transfer is obtained from the energy balance:
ΔU=
+
m₂u₂ – m₁u₂ = +
= m₂u₂ – m₁u₁ –
= V/α₂u₂ - V/α₁u₁ –
=(0.05/0.0008935 . 116.72 – 0.05/0.025645 . 246.82 – 54.108.28) Kj
= 203 KJ