How much heat does it take to raise the temperature of 7.0 kg of water from
2 answers:
You might be interested in
Answer:
6692J
Explanation:
Power is defined as the rate at which work is being done.
So,
Power =
Work done = Power x time
Given parameters:
Power = 478watts
Time = 14s
So;
Work done = 478 x 14 = 6692J
Answer:
Explanation:
From the question, using the expression:
where;
This is a combined intensity of 4 speakers.
Thus, the intensity of 3 speakers =
= 2.372 W/m²
Thus;