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kirill115 [55]
3 years ago
15

In this system, potential and kinetic energy are ________________ proportional.

Chemistry
1 answer:
brilliants [131]3 years ago
5 0

Answer:

This question is incomplete

Explanation:

There are two major forms of energy; these are potential and kinetic energy. Kinetic energy is the energy present in moving options. Examples include mechanical and electrical energy.

The formula for kinetic energy is 1/2mv² where "m" is mass and "v" is velocity.

While potential energy is the energy present in stationary objects that can be put to use in future. Example includes a ball in its resting state. The formula for potential energy is "mgh" where "m" is mass, "g" is acceleration due to gravity and "h" is height

Considering the law of conservation of energy which states that energy can neither be created nor destroyed but can be transformed from one form to another. Looking at the example provided earlier for potential energy, a ball in its resting position (having a potential energy) when kicked will have a kinetic energy (which can be calculated with the formula provided earlier), hence

Total energy = potential energy (P.E) + kinetic energy (K.E)

This formula and the explanation above can be used to answer the completed question.

NOTE: There is no standard relationship between P.E and K.E. They could be directly or indirectly proportional depending on the circumstance.

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How does diffusion enable you to smell food cooking in another room
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How many calories of heat were added to 167.9 g of water to raise its temperature from 25oC to 55oC?
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Answer:

Q = 5036.9 calories

Explanation:

Given that,

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Q=mc\Delta T\\\\=167.9 \times 4.184\times (55-25)\\\\=21074.8\ J

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3 years ago
A sample of carbon dioxide gas (CO2) contains 8.551 x 1025 molecules. How many moles of carbon dioxide does this represent?
ozzi

Answer:

142.0 moles CO₂

Explanation:

To answer this question, we first need to know what a mole is. A mole represents 6.022 \cdot 10^{23} of something, and in this case, that something is molecules.

So, to convert 8.551 \cdot 10^{25} molecules into moles, we need to use the conversion factor  1=\frac{6.022\cdot 10^{23} \text{molecules} }{ \text{1 mole}}.

Doing so (using dimensional analysis) gives us:

8.551 \cdot 10^{25} \text{ molecules } \cdot  \frac{\text{1 mole}}{ 6.022\cdot 10^{23} \text{ molecules} } = \frac{8.551 \cdot 10^{25}}{ 6.022\cdot 10^{23}} \text{ moles CO}_2 = \\ \\ 141.996 \text{ moles CO}_2 = \boxed{142.0 \text{ moles CO}_2 }

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3 years ago
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