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Basile [38]
4 years ago
15

Human populations all over the world burn fossil fuels to power cars, planes, and generate electricity. Select the statement tha

t best describes the long–term global effects of this behavior.
A.) Burning fossil fuels pollutes the environment and our heavy reliance on them creates a long–term problem because they are not a renewable resource. B.)Countries will not need to spend money on investigating other sources of energy because fossil fuels are abundant.
C.) Fossil fuels burn clean so the pollution problem is not really a source of concern for the future.
D.) As populations increase, the need for fossil fuels will decrease; therefore, there will always be an abundance.
Physics
2 answers:
Eddi Din [679]4 years ago
7 0
<span>A.) Burning fossil fuels pollutes the environment and our heavy reliance on them creates a long-term problem because they are not a renewable resource.</span>
never [62]4 years ago
7 0

The correct answer to the question is :A) Burning fossil fuels pollutes the environment and our heavy reliance on them creates a long–term problem because they are not a renewable resource.

EXPLANATION:

Fossil fuels like natural gas, gasoline, petrol etc. are not renewable resources.They are not abundant at a large extent in our earth.

Most importantly the fossil fuels produce toxic substances and pollutants like carbon dioxide, nitrogen oxide, sulfur dioxide etc. These pollutants pollute our atmosphere at a greater extent, and it is the measure cause for global warming. They have a long term effect on our ecosystem.

Hence, the correct answer of this question is option A.

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Answer:

W=2.592*10^{-7} J

Explanation:

GIVEN DATA:

Charge 3 nC

Radius of ring is 10 cm

A point charge 1 nC

Distance of point charge is 2.5 m

We know that voltage is calculated as

V(0) =\frac{KQ}{r}

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V = 270 V

At x = 2.5m

r = \sqrt{(0.1^2+2.5^2)}

r = 1.581 m

V(2) = \frac{(9*10^9)(3*10^{-9})}{1.581}

V(2) = 10.801 V

Work done is calculated as

W= q(dV)

W = (1*10^{-9})(270 - 10.80)

W=2.592*10^{-7} J

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4 years ago
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A person runs with a constant velocity of 1.2 m/s for 30 seconds. how far do they travel?
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They will travel 36 m
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the (speed) of an object is a vector quantity that tells us the speed and direction of an objects momentum is this correct? If n
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Two wheels roll side-by-side without sliding, at the same speed. The radius of wheel 2 is one-half (1/2) the radius of wheel 1.
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Answer:

w'=(1/2)w

Explanation:

In order to calculate the angular velocity of the second wheel, you use the following formula:

\omega=\frac{v}{r}      (1)

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