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irina [24]
3 years ago
12

TWO QUESTIONS!

Physics
2 answers:
solong [7]3 years ago
7 0

The correct answer to the question is : 1) Converting energy and 2) Within about twenty years, natural gas forms.

EXPLANATION:

In coal fired power plants, the water is heated by burning coals. The heat produced in this process will convert water into steam. The steam is allowed to rotate the turbine. The turbine is attached to a generator which converts the kinetic energy of the steam into electric energy due to electromagnetic induction.

Hence, turbine helps in converting energy.

As per the second question, Walt listed the steps that occur during the formation of natural gas.

The natural gas is produced due to natural phenomenon. For this, millions of years are passed. So, it is a long range process in which the fossil of animals and planets buried beneath the surface are converted into natural gas under high pressure.

Hence, the mistake of Walt is  that the natural gas is produced withing twenty years.

tamaranim1 [39]3 years ago
6 0

the answer to your first question is option c: converting energy

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pochemuha

Answer:

minimum initial velocity is 21.35 m/s

Explanation:

given data

distance S = 30 m

height h = 30 m

maximum acceleration a = 2 m/s²

to find out

minimum initial velocity that your friend could have thrown the object to enable you to catch

solution

first we get here time with the help of second equation of motion

time = \sqrt{\frac{2h}{a} }  ..................1

put her value we get

time = \sqrt{\frac{2*30}{2} }

time = 5.477 second

and that is time which tossed object must be take so we apply here again second equation of motion that is

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solve it we get

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3 0
3 years ago
Read 2 more answers
What is the mass of a truck if it is accelerating at a rate of 5 m/s2 and hits a parked car with a
sineoko [7]

Answer:

<h3>The answer is 2800 kg</h3>

Explanation:

The mass of the truck can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

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From the question we have

m =  \frac{14000}{5}  \\

We have the final answer as

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Hope this helps you

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5 0
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Luba_88 [7]

Answer:

0.10s

Explanation:

the fall time is

4.9/100=.5*9.81*t^2

solve for t

6 0
3 years ago
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