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Assoli18 [71]
3 years ago
7

Why are water storage tanks usually placed on high towers

Physics
2 answers:
sammy [17]3 years ago
7 0
Thay are on high towers because if it was below how would the water flow. Putting it on high towers gives you an advantage of the gravity with means you got free pressure without having to use a pump.

<span>Water pressure = Height * density * gravity</span>
Ratling [72]3 years ago
4 0
<span>To increase the water pressure that flows from it. Allowing the water to go to the maximum amount of houses.</span>
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Two forces are applied to a tree stump to pull it out of the ground. Force A has a magnitude of 2410 newtons (N) and points 36.0
Anarel [89]

Answer:

The magnitude of the resultant force is 6201 N

The direction of the resultant force is 72°

Explanation:

Please find the attached file for explanation;

8 0
3 years ago
Observations of the Crab Nebula taken over several decades show that gas blobs that are now 100 arcseconds from the center of th
Oksi-84 [34.3K]

Answer:

Estimation: year 1110.

Explanation:

We need to know how much time it takes to move 100 arcseconds if it moves at 0.11 arcsecond per year. Similarly to any velocity equation v=\frac{d}{t}, where in our case the distances are angular, we will obtain the time by doing:

t=\frac{d}{v}=\frac{100arc}{0.11arc/year}=909 years

Which, considering from 2019, the explosion ought to have been observed around 1110 (in reality it was observed by Chinese astronomers in 1054).

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3 years ago
98 POINTS FOR ANYONE THAT DOES THIS NOW!!
Varvara68 [4.7K]

In simpler terms, a proton and neutron weigh 1 amu (atomic mass unit) each.

The nucleus has 15 protons and 18 neutrons. Since a proton's and a neutron's weight is only 1 amu, we can simply add the number of protons and neutrons to find the total mass of the nucleus:

15 + 18 = \boxed{33}

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8 0
3 years ago
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A microwave oven operates at 2.50 GHzGHz . What is the wavelength of the radiation produced by this appliance? Express the wavel
sattari [20]

Answer:

The wavelength is \lambda  =  1.2  * 10^8 nm

Explanation:

From the question we are told that

   The frequency of operation of the microwave is  f =  2.50 GHz  =  2.50 *10^{9} \ Hz

     Generally the wavelength is mathematically represented as

          \lambda  =  \frac{c}{f}

Here c is the speed of light with value c =  3.0 *10^{8} \  m/s

So  

         \lambda  =  \frac{3.0 *10^{8}}{  2.50 *10^{9}}

=>       \lambda  =  0.12 \  m

converting to nanometer

           \lambda  =  1.2  * 10^8 nm

6 0
4 years ago
A boy reaches out of a window and tosses a ball straight up with a speed of 10 m/s. The ball is 20 m above the ground as he rele
HACTEHA [7]

Answer:

25 m

9.9 m/s

22 m/s

Explanation:

m = Mass of ball

v = Velocity

g = Acceleration due to gravity = 9.81 m/s²

Applying conservation of energy

mgh=\dfrac{1}{2}mv^2\\\Rightarrow h=\dfrac{v^2}{g}\\\Rightarrow h=\dfrac{10^2}{2\times 9.81}\\\Rightarrow h=5.09683\ m

The height above the ground is 5.09683+20 = 25.09683 m = 25 m

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The ball's speed as it passes the window on its way down is 9.9 m/s

mgh=\dfrac{1}{2}mv^2\\\Rightarrow v=\sqrt{2gh}\\\Rightarrow v=\sqrt{2\times 9.81\times 25}\\\Rightarrow v=22.14723\ m/s

The speed of impact on the ground is 22 m/s

7 0
3 years ago
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