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Monica [59]
2 years ago
15

He change in pitch due to a moving wave source is called ______.

Physics
1 answer:
Studentka2010 [4]2 years ago
7 0
B) the Doppler effect
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A machine is rolling a metal cylinder under pressure. The radius of the cylinder is decreasing at a constant rate of 0.05 inches
Luden [163]
Yes, the volume of the cylinder will remain constant. As the radius decreases, the height will increase to make sure that the volume is kept the same.
We have been given a value of dr/dt and are required to find dh/dt
Because the volume is constant, we can plug it into the formula for the volume of the cylinder and rearrange it to make h the subject:
128 = πr²h
h = 128/πr²
Now we differentiate both sides:
dh/dr = -256/πr³
Applying the chain rule:
dh/dt = dh/dr x dr/dt
dh/dt = (-256/πr³) x -0.05
dh/dt = 64/5πr³; substituting the value of r
dh/dt = 64/5π(1.5)³
dh/dt = 1.21 in/sec
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Solar evaporation ponds are shallow so that the sun can heat them up, causing the water to evaporate, which increases the salt c
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B. stearothermophilus and S. ruber

In solar evaporation ponds the temperature is higher and the salt concentration is also higher because of the water evaporated so sunder such extreme conditions this hybrid bacteria is capable of surviving. B. stearothermophilus is thermophilus bacteria which grows at high temperature and S. ruber is halophilic bacteria which grows in saline environment. So, these two bacteria best suited for the above hybrid condition.

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KatRina [158]

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i would think the first two, but i cant be sure.

Explanation:

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Which sector is not part of the circular flow model of the economy ?
morpeh [17]

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a. government sector

Explanation:

7 0
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