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1 year ago

Which of the following, if eliminated, would completely prevent the greenhouse effect from occurring on earth?

1 answer:

7 0

The green house gases can be reduced up to a limit by eliminating the fossil fuels and chlorofluorocarbons. Fossil fuels are the major source of greenhouse gases.

<h3>What are green house gases?</h3>

Greenhouse gases are those which are capable of intense absorption of the temperature radiated from the earth's surface and make the earth atmosphere warm up.

Greenhouse gases are the main cause of global warming. Carbon dioxide, methane oxides of nitrogen and sulphur are the green house gases.

Fossil fuels are rich in hydrocarbons and they release these gases when burned. Mainly methane and other hydrocarbon gases intensely absorbs the temperature which is radiating away from the earth and thus the heat is trapped inside.

Therefore, by eliminating fossil fuels, greenhouse effect can be prevented.

To find more on greenhouse effect, refer here:

brainly.com/question/13706708

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Projectile A is launched horizontally at a speed of 20. Meters per second from the top of a cliff and strikes a level surface be

miv72 [106K]

consider the motion of projectile A in vertical direction :

v₀ = initial velocity of projectile A in vertical direction = 0 m/s (since the projectile was launched horizontally)

a = acceleration of the projectile = g = acceleration due to gravity = 9.8 m/s²

t = time of travel for projectile A = 3.0 seconds

Y = vertical displacement of projectile A = height of the cliff = h = ?

using the kinematics equation along the vertical direction as

Y = v₀ t + (0.5) a t²

h = (0) (3.0) + (0.5) (9.8) (3.0)²

h = 44.1 m

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3 years ago

After exercise your heart rate is

harina [27]

Your heart rate is higher than normal.

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3 years ago

Read 2 more answers

if a ball with an original velocity of 0 is dropped from a tall structure and takes 7 Seconds to hit the ground what velocity do

krok68 [10]

$a_y=\dfrac{v_y-v_{0y}}t\implies-9.81\,\dfrac{\mathrm m}{\mathrm s^2}=\dfrac{v_y-0}{7\,\mathrm s}\implies v_y=-68.7\,\dfrac{\mathrm m}{\mathrm s}$

5 0

3 years ago

Choose the situation below in which the force applied is the greatest.

Gnesinka [82]

Answer:

Explanation:

We know the formula for Work to be:

W = f * d

Where W is work done

f is force

d is the distance

Work = 50

Distance = 50

So, Force is:

Force = 50/50 = 1

Work = 400

Distance = 80

Force = 400/80 = 5

Work = 365

Distance = 73

Force = 365/73 = 5

Work = 144

Distance = 16

Force = 144/16 = 9

Hence, D is the situation in which the force applied is the greatest.

6 0

3 years ago

A diverging lens (f1 = -12.0cm) is located 50.0 cm to the left of a converging lens (f2 = 34.0 cm). A 2.0 cm-tall object stands

pishuonlain [190]

Answer:

The final image relative to the converging lens is 34 cm.

Explanation:

Given that,

Focal length of diverging lens = -12.0 cm

Focal length of converging lens = 34.0 cm

Height of object = 2.0 cm

Distance of object = 12 cm

Because object at focal point

We need to calculate the image distance of diverging lens

Using formula of lens

$\dfrac{1}{v}=\dfrac{1}{f}-\dfrac{1}{u}$

$\dfrac{1}{v}=\dfrac{1}{-12}-\dfrac{1}{-12}$

$v=\infty$

The rays are parallel to the principle axis after passing from the diverging lens.

We need to calculate the image distance of converging lens

Now, object distance is ∞

Using formula of lens

$\dfrac{1}{v}=\dfrac{1}{34}-\dfrac{1}{\infty}$

$v=34$

The image distance is 34 cm right to the converging lens.

Hence, The final image relative to the converging lens is 34 cm.

5 0

3 years ago