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eimsori [14]
2 years ago
15

When the car uses gas to drive, it is converting chemical potential energy into kinetic energy.

Physics
2 answers:
nikitadnepr [17]2 years ago
8 0

Answer:

true

Explanation:

A car burns gasoline(Chemical Potential energy because it has stored energy released as it burns). This Chemical energy transforms into Kinetic energy(energy of motion) as the car moves.

diamong [38]2 years ago
6 0

Answer:

True.

Explanation:

the car takes the gas and turns it into energy that makes it move

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If The density of this stainless steel is7.85 g/cm3,specific heatis 0.5 J/g.K, melting pointis 1673K, heat of fusion s0.260J/kg.
kodGreya [7K]

Answer:

\Delta H=687.4 J

Explanation:

Hello!

In this case, for this melting process, we can identify two sub-processes in order to take the stainless steel from solid to liquid:

1. Heat up from 298.15 K to 1673 K.

2. Undergo the phase transition.

Both process have an associated enthalpy as shown below:

\Delta H_1=1g*0.5\frac{J}{g*K} (1673K-298.15K)=687.4J

\Delta H_2=0.001kg*\frac{0.260J}{kg} =0.00026J

Therefore, the required heat is:

\Delta H=\Delta H_1+\Delta H_2\\\\\Delta H=687.4J+0.00026J\\\\\Delta H=687.4J

Notice the problem is not providing neither the mass or volume, that is why we assumed the mass is 1 g; however, it can be changed to the mass you are given.

Best regards!

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3 years ago
Which of the following has the greatest inertia? A. a toy car . . B. a jet airliner . . C. a full-size car . . D. a pick-up truc
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Inertia is defined as the property of matter by which causes it to resist changes in its state of motion such as changes in velocity. From the given options above, the option that has the greatest inertia would be option B. A jet airliner. 
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Answer:

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Answer:

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Answer:

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