Which of these statements best describes how an increase in atmospheric carbon dioxide contributes to global climate change?

1 answer:

5 0

I believe the answer is D. More sunlight is trapped by the atmosphere to cause global warming.
Even though Atmosphere usually contains Co2, the amount is really minor and heat from the Sunlight usually still able to reflected outside under noermal circumtances. But, due to usage of fossil fuels, the amount of CO2 in the atmosphere is significantly increased and making the sunlight unable to reflected outside and trapped within the Earth.

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A capacitor stores 7.77 x 10-7 J of

Lubov Fominskaja [6]

Answer: $36.22\ V$

Explanation:

Given

Energy in a capacitor $E=7.77\times 10^{-7}\ J$

Charge $Q=4.29\times 10^{-8}\ C$

Energy of a capacitor is given by

$E=\dfrac{1}{2}CV^2=\dfrac{1}{2}QV\quad [\text{Q=CV}]$

Insert the values

$E=\dfrac{1}{2}QV\\\\\Rightarrow 7.77\times 10^{-7}=\dfrac{1}{2}\times 4.29\times 10^{-8}\times V\\\\\Rightarrow V=3.622\times 10\\\\\Rightarrow V=36.22\ V$

Thus, the voltage around the capacitor is $36.22\ V$

4 0

3 years ago

How far does a car go in 30 seconds at a speed of 29 m/s? (The equation for distance is d = st.)

Harrizon [31]

d = speed x time

distance = 29 x 30

distance = 870m

please mark as BRAINLIEST

8 0

2 years ago

Which of the following items has the most inertia while at rest?

Vika [28.1K]

The answer should be (c) because the dog is the one which make a sound of ooooooo

3 0

3 years ago

Point A and B located at 4 meters and 9 meters from a source of the sound. If IA and IB are intensity at point A and point B, th

elena-14-01-66 [18.8K]

The intensity ratio at point A and B will be 81:16.

Explanation:

Sound waves are known to get faded with increase in the distance. This is because, the intensity of the sound is inversely proportional to the square of the distance of the source from the observer. So, if an observer is standing greater distance from the source of the sound, he/she will find difficulty in hearing the sound.

So, as the distance between the source and observer increases, the intensity of the sound wave decreases.

$I = \frac{1}{r^{2} }$

As here two points A and B are located at 4 m and 9 m distance from the source, then the intensity of sound at A and B will be inversely proportional to their respective square of the distance as shown below.

$I_{A} =\frac{1}{r_{A}^{2} } = \frac{1}{4 \times 4}=\frac{1}{16}$