Answer:
theres only 118 elements that are discovered. now that they're the only ones out there
Explanation:
Putting together two distinct 50 dB sound, do not create a 100 dB sound. Since decibels are logarithm of energy, creating two sounds together only makes the energy increase but the logarithm only goes up by somehow little. So increasing the sound by 10 dB, only makes it 10000 times louder because each 10 dB increase in sound makes the sound 10 times louder.
Twice as loud is an increase of 10Log (2) = 3.01 dB. So, 53,01 dB is twice as loud as 50dB.
1200 mL
1.2L*1000mL/1L=1200mL (after canceling alike units)
Hope this helps:)
Answer:
(a) 
(b) 
Explanation:
For part (a)
As we know that
For part (b)
The power in unit of horsepower is:
