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3 years ago

Tropospheric ozone ________.

1 answer:

4 0

Tropospheric ozone is produced through interaction of heat and UV light, with nitrogen oxides and carbon containing compounds.

Option: D

Explanation:

In earth's atmosphere there are total five layers: Troposphere, Stratosphere, Mesosphere, Ionosphere and Exosphere. Stratosphere is known as Ozonosphere where ozone layer is present with the key constituent ozone. Ozone layer is very important as it protects whole environment from harmful UV rays coming from space.

Tropospheric ozone is produced through the interaction of heat and UV light with nitrogen oxides and carbon containing compounds. Ozone plays a dual role in environment when it is in lower surface area it is a harmful gas and when it is in atmospheric layer it is a life saving layer.

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Which statement is true regarding DC current? A. The electrons move back and forth. B. There can only be one voltage supplied. C

Kazeer [188]

Answer:

Explanation:

In a DC current, the current supplied is steady motion (a straight horizontal line in a graph) and this is what makes it had to transform. The alternating current takes a sine wave motion in a graph. This means is voltage varies from zero to peak and reverses polarity. The rate at which it achieves this is its frequency in Hertz.

7 0

3 years ago

If a sound wave is produced by a speaker at room temperature and has a

Oksana_A [137]

Answer: 183.8Hz

Explanation:

Given that,

wavelength of sound (λ) = 1.85 m

frequency of the sound (F) = ?

Recall that the speed of sound (V) in air is a constant with a value of 340m/s

So, apply the formula

V = F λ

340 m/s = F x 1.85 m

F = 340m/s / 1.85m

F = 183.8Hz

Thus, the frequency of the sound that is

generated is 183.8 hertz

3 0

3 years ago

Can you help me understand force=mass x accleration

gavmur [86]

Force = mass * acceleration

Here is an equation for force, used to calculate force.

Look at it this way:-

Joules is used to measure force, while mass is measured by kg. Acceleration is measured by m/s/s (meters per second per second, or meters per second squared.)

joules = m/s/s * kg

Which makes everything fit in just right! :D

6 0

4 years ago

Consider a diffraction grating of width 5cm with slits of width 0.0001 cm separated by distance of 0.0002cm 1:what is the corres

sashaice [31]

Answer:

a) $d= 0.0002cm$

b) $m=3$

Explanation:

From the question we are told that:

Width of diffraction grating $W_g= 5cm$

Width of silt $w_s 0.0001 cm$

Distance $d= 0.0002cm$

Generally the grafting element is the distance b/w the silts

$d= 0.0002cm$

Therefore the grafting element is

$d= 0.0002cm$

Generally the equation for diffraction state is mathematically given by

$dsin\theta=m\lambda$

Since

$sin\theta \leq 1$

Therefore

$m \leq \frac{d}{\lambda}$

$m \leq \frac{0.0002}{0.000055}$

$m \leq 3.6$

Therefore orders observed with $\lambda$ is

$m=3$

3 0

3 years ago

On an amusement park ride, passengers are seated in a horizontal circle of radius 7.5 m. The seats begin from rest and are unifo

timofeeve [1]

Answer:

a = 0.5 m/s²

Explanation:

Applying the definition of angular acceleration, as the rate of change of the angular acceleration, and as the seats begin from rest, we can get the value of the angular acceleration, as follows:

ωf = ω₀ + α*t

⇒ ωf = α*t ⇒ α = $\frac{wf}{t}$ = $\frac{1.4 rad/s}{21 s} = 0.067 rad/s2$

The angular velocity, and the linear speed, are related by the following expression:

v = ω*r

Applying the definition of linear acceleration (tangential acceleration in this case) and angular acceleration, we can find a similar relationship between the tangential and angular acceleration, as follows:

a = α*r⇒ a = 0.067 rad/sec²*7.5 m = 0.5 m/s²

3 0

4 years ago