Answer: 1344db
Explanation:
According to the question, a solo trumpet produces 84db, 15 solo trumpet will produce (84×15)decibel i.e 1260db.
Since the 15trumpets joins the first trumpet, that will make a total combination of 16trumpets making the sound at a time. This means that the total number of decibel produced is
1260+84 = 1344decibel
Answer:
B. does it transfer energy
A wave is a disturbance in a medium. Particles vibrate and TRANSFER their ENERGY to their neighbors.
Answer:
The number of crates is 84580.
Explanation:
mass, m = 30 kg
height, h = 0.9 mm
Power, P = 0.5 hp = 0.5 x 746 W = 373 W
time, t = 1 minute = 60 s
Let the number of crates is n.
Power is given by the rate of doing work.
2 hydrogen atoms can be bonded to an oxygen atom