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Lesechka [4]
3 years ago
15

A car driver accelerates to a speed of 35 mph and then takes her foot off the gas pedal. Even though she does not press the brak

e pedal at any time, she eventually rolls to a stop. Which of the following most likely causes the car to come to a stop?
Chemistry
1 answer:
RSB [31]3 years ago
7 0
The list of options to answer this question is:

A.kinectic energy is transformed into thermal energy.

B.electrical energy is transformed into potential energy.

C.potential energy is transformed into kinectic energy.

D.mechanical energy is transformed into chemical energy.

The answer is the option A. A.kinectic energy is transformed into thermal energy.

As you know energy cannot be lost but transformed.

When friction force acts over the tyres it increases the speed of the particles in the tyres which is thermal energy, this thermal energy increase comes from kinetic energy loss.
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Fiesta28 [93]

Complete Question

Questions Diagram is attached below

Answer:

*  W=1142.86Joule

*  Q=997.7J

*  H=2140.5J

Explanation:

From the question we are told that:

Temperature T=337K

Pressure P=(60-55)Pa*10^5

VolumeV=(1.6-1.4)m^3*10^{-3}

Generally the equation for gas Constant is mathematically given by

\frac{P_2}{P_1}=\frac{V_1}{V_2}^n

 \frac{55*10^5}{60*10^5}=\frac{1.4*10^{-3}}{1.6*10^{-3}}^n

 n=0.65

Therefore

Work-done

 W=\int{pdv}

 W=\frac{55*10^5*1.6*10^{-3}*60*10^5*1.4*10^{-3}}{1-0.65}

 W=1142.86Joule

Generally the equation for internal energy is mathematically given by

 Q=mC_vdT\\\\Q=\frac{3*1*3.314*16}{1.4-1}

 Q=997.7J

Therefore

 H=Q+W

 H=997.7J-11.42.9

 H=2140.5J

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If the gravitational force exists between all objects in the universe, why aren’t people affected by the gravitational force exe
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Answer:

has a very small range

Explanation:

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Help! The products of a chemical equation are CO2 and 2H20. Which set of atoms
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D. Ap3x just did it

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The animal kingdom includes <span>multicellular organisms. Also the cells of the species in this kingdom have a nucleus but no chloroplasts or cell wall. </span>
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7 0
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In Rutherford's model of the atom, where are the electrons and protons located?
yan [13]

The answer is A. The electrons orbit the protons, which are at the center of the atom.

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