Answer:
3432 Hz.
Explanation:
The resonant frequency of the canal can be calculated as follows:
f = v/ 4l
Here, f is frequency, v is velocity of sound and l is the pipe length.
l = 2.5 cm = 0.025m and v = 343.2m/s.
Put these values to find the resonant frequency
f = 343.2 / 4 * 0.025.
f = 3432 Hz.
Thus, the answer is 3432 Hz.
1 is F
2 is C
3 is H
4 is E
5 is A
6 isD
7 is G
8 is B
A maximum of five days due to the hormones most likely leaving your body in that time frame
Answer:
FALSE
Explanation:
The circulatory system of a fetus consists of three shunts that are responsible for diverting the blood away from the partially functioning and undeveloped organs. The three shunts are ductus venosus, ductus arteriosus and foramen ovale.
The ductus arteriosus shunts the blood from pulmonary artery directly to aorta and bypasses the non-functioning lungs.
Whereas, the ductus venosus shunts the blood from the umbilical vein directly to inferior vena cava and bypasses the non-functioning liver.
Answer:
The answer is C. The study shows that pesticides cause Parkinson's disease. This was a controlled experiment because the only way to ensure exposure to pesticides is to use low levels of pesticides on the treatment group. Assuming all key features are satisfied, controlled experiments can conclude causation.
Explanation:
