Answer:
117.8 m/s
Explanation:
Given that:
String length, L = 0.28
pipe length, L' = 0.82
Speed of sound in air, v = 345 m/s
n = 3 (3rd harmonic)
Frequency, f of 3rd harmonic ;
f = (v*n) / 2L - - - - (1)
for the pipe: ; 3rd harmonic
f = (v*n) / 2L' - - - (2)
Equating (1) and (2)
(v*n) / 2L = (v*n) / 2L'
2L' * v * n = v* n * 2L
v = vL / L'
v = (345 * 0.28) / 0.82
v = 96.6 / 0.82
v = 117.80487
v = 117.8 m/s
<span>For adults age 19–50, Dietary Guidelines recommend consuming at least 4 cups of vegetables and fruits daily. this means the answer is C</span>
ADH binds onto the cells of the collecting duct and makes them more permeable to water, thus more water is reabsorbed by osmosis back into the blood. The blood becomes more dilute and the urine more concentrated
Answer:
![5 m/s^2](https://tex.z-dn.net/?f=5%20m%2Fs%5E2)
Explanation:
Assuming the tension in the rope is the only force acting on the block, then we can use Newton's second law:
![F=ma](https://tex.z-dn.net/?f=F%3Dma)
where
F is the net force on the block
m is the mass of the block
a is its acceleration
The tension in the rope is the only force acting on the block, so
F = T = 10 N
The mass of the block is
m = 2 kg
So, solving for a, we find the acceleration:
![a=\frac{F}{m}=\frac{10}{2}=5 m/s^2](https://tex.z-dn.net/?f=a%3D%5Cfrac%7BF%7D%7Bm%7D%3D%5Cfrac%7B10%7D%7B2%7D%3D5%20m%2Fs%5E2)