Answer: destructive interference
Explanation:
A! Good luck on your test!
Answer:
Q = 640425 J = 640.425 KJ
Explanation:
From the law of conservation of energy:
Heat Addition = Heat Gain of Water + Heat Gain of Aluminum Kettle
where,
Q = Heat addition required = ?
= mass of water =1.8 kg
= mass of aluminum kettle = 1.1 kg
= specific heat capacity of water = = 4200 J/kg.°C
= specific heat capacity of aluminum kettle = = 890 J/kg.°C
= = change in temperature of water and kettle = 95°C - 20°C = 75°C
Therefore,
Q = 567000 J + 73425 J
<u>Q = 640425 J = 640.425 KJ</u>
Choices #1, #4, and #5 are true.
Choices #2 and #3 aren't.
Answer:
Velocity = 4.85m/s
Explanation:
Detailed explanation and calculation is shown in the image below