If the intensity level of one trombone is 70 dB and that of one cornet is 65 dB, which is louder: 76 trombones or 110 cornets?
What will be an ideal response?
76 trombones
You might also like to view...
The curved shape of Earth's shadow during an eclipse was evidence for ________.
A. a spherical Earth B. a flat, circular Earth C. a flat, circular Moon D. a spherical Moon E. None of these choices is correct.
Spiral arms are obvious—easily-seen features—because they contain ____
a. dense molecular clouds b. atomic hydrogen clouds c. sun-like stars d. OB associations e. supernovae
A parallel plate air-dielectric capacitor with circular plates has a separation gap of 1.5 mm. If it is desired to store 12 mJ in this capacitor, what must the plate area be for a voltage of 1.5 kV?
a. 
b. 
c. 
d. 
Identify a true statement about the Sun
A) It is the smallest star in the Universe. B) It is at a distance of 2 AU from Earth. C) It shines by reflecting light from the Moon. D) It generates its own energy.