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3 years ago

What is acid rain? write it's two causes.

Physics

2 answers:

Soloha48 [4]3 years ago

7 0

Answer:

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

tigry1 [53]3 years ago

4 0

Answer:

Anser Make me Brilliant

Explanation:

Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids. Some governments have made efforts since the 1970s[1] to reduce the release of sulfur dioxide and nitrogen oxide into the atmosphere with positive results.

Casuse of Acid Rain -

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it is shifting from a planned a free-market economy

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3 years ago

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3 years ago

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4 years ago

Read 2 more answers

. A magnetic field has a magnitude of 0.078 T and is uniform over a circular surface whose radius is 0.10 m. The field is orient

Dmitriy789 [7]

Answer:

The magnetic flux through surface is $2.22 \times 10^{-3}$ Wb

Explanation:

Given :

Magnitude of magnetic field $B = 0.078$ T

Radius of circle $r = 0.10$ m

Angle between field and surface normal $\theta =$ 25°

From the formula of flux,

$\phi = B.A$

$\phi = BA\cos \theta$

Where $\theta =$ angle between magnetic field line and surface normal, $A =$ area of circular surface.

$A = \pi r^{2}$

$A = 3.14 \times (0.10) ^{2}$

$A = 0.0314$ $m^{2}$

Magnetic flux is given by,

$\phi = 0.078 \times 0.0314 \times \cos 25$

$\phi = 2.22 \times 10^{-3}$ Wb

Therefore, the magnetic flux through surface is $2.22 \times 10^{-3}$ Wb

6 0

4 years ago

The flywheel of a steam engine runs with a constant angular velocity of 150 rev/min. When steam is shut off, the friction of the

Annette [7]

Answer:

a) $\ddot n = -1.563\,\frac{rev}{min^{2}}$ , b) $\Delta n = 7197.697\,rev$ , c) $a_{t} = 1.009\times 10^{-3}\,\frac{m}{s^{2}}$ , d) $a = 22.823\,\frac{m}{s^{2}}$

Explanation:

a) Constant angular acceleration is:

$\ddot n = \frac{\dot n - \dot n_{o}}{\Delta t}$

$\ddot n = \frac{0\,\frac{rev}{min} - 150\,\frac{rev}{min}}{(1.6\,h)\cdot \left(60\,\frac{min}{h} \right)}$

$\ddot n = -1.563\,\frac{rev}{min^{2}}$

b) The amount of revolutions required to stop the flywheel is:

$\Delta n = \frac{\dot n^{2}-\dot n_{o}^{2}}{2\cdot \ddot n}$

$\Delta n = \frac{\left(0\,\frac{rev}{min} \right)^{2}-\left(150\,\frac{rev}{min} \right)^{2}}{2\cdot \left(-1.563\,\frac{rev}{min^{2}} \right)}$

$\Delta n = 7197.697\,rev$

c) The tangential acceleration of the particle is:

$a_{t} = \left(1.563\,\frac{rev}{min^{2}} \right)\cdot \left(\frac{1}{3600}\,\frac{min^{2}}{s^{2}}\right)\cdot \left(2\pi\,\frac{rad}{rev}\right)\cdot (0.37\,m)$

$a_{t} = 1.009\times 10^{-3}\,\frac{m}{s^{2}}$

d) The radial acceleration of the particle is:

$a_{r} = \left[\left(75\,\frac{rev}{min} \right)\cdot \left(\frac{1}{60}\,\frac{min}{s} \right)\cdot \left(2\pi\,\frac{rad}{rev} \right)\right]^{2}\cdot (0.37\,m)$

$a_{r} = 22.823\,\frac{m}{s}$

The net linear acceleration is:

$a = \sqrt{a_{r}^{2}+a_{t}^{2}}$

$a = \sqrt{\left(22.823\,\frac{m}{s^{2}} \right)^{2}+\left(1.009\times 10^{-3}\,\frac{m}{s^{2}} \right)^{2}}$

$a = 22.823\,\frac{m}{s^{2}}$

3 0

3 years ago

What is acid rain? write it's two causes.​

What is acid rain? write it's two causes.