Answer:
it may be efficient at first but over time there will be a lot of wasted energy.
Explanation:
I'm pretty sure
Answer:
4441 J
Explanation:
The amount of energy needed to change the ethyl alcohol from liquid to gas state is given by

where
m = 5.20 g is the mass of the alcohol
is the latent heat of vaporization of the substance
Substituting the numbers into the formula, we find:

Answer:
See Explanation
Explanation:
The frequency of sound waves received by the microphone influences the output or pitch of the sound obtained from the microphone.
The higher the frequency of the sound received by the microphone, the higher the output of the microphone and vice versa. This is because, the higher the frequency of sound, the higher the oscillations produced and the greater the output of the microphone.
The rise and fall in the pitch of sound waves as the frequency of sound waves varies is called inflection.
Answer:
Also 4.
Explanation:
If there was a decimal point after the last zero, you'd count the two zeroes as significant.