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Ray Of Light [21]
3 years ago
10

Which of the following best represents potential energy being converted to kinetic energy?

Chemistry
2 answers:
OverLord2011 [107]3 years ago
6 0

Answer:

The answer is the roller coaster (A)

Explanation:

Potential energy depends on the height Ep= m*g*h. The more height the system has, more potential energy it owns. Meanwhile it starts to move, the energy transforms from potential (it's going down) to kinetic (it's gaining speed)

Ek = 1/2 * m * v^2

When the roller coaster reaches the ground, all the potential energy has turned into kinetic energy. As it starts going up again, once more the kinetic energy starts to transform into potential energy, due to the system is stoping and gaining height again.

Rufina [12.5K]3 years ago
5 0
I believe the answer is A
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How much heat (in kj) is required to warm 13.0 g of ice, initially at -12.0 ∘c, to steam at 113.0 ∘c? the heat capacity of ice i
olga nikolaevna [1]
The total amount of heat required is the sum of all the sensible heat and latent heats involved in bringing the ice to a desired temperature and state. The latent heat of fusion and vaporization of water 333.55 J/g and 2260 J/g, respectively. Solving for the total amount of heat,
                   total amount of heat = 13.0 g (2.09 J/gC)(12) + 13(333.55 J/g) + 13.0 g (4.18 J/gC)(100 - 0) + (13.0 g)(2260 J/g) + (13 g)(2.01 J/g)(113-100) 
                                        = 39815.88 J 
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5 0
3 years ago
Read 2 more answers
A chemist has 3.55x1022 molecules of nitrogen monoxide. How
Alina [70]

Answer:

<h2>0.059 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{3.55 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.05897...

We have the final answer as

<h3>0.059 moles</h3>

Hope this helps you

6 0
3 years ago
Which component of the dri reflects the requirement of a nutrient for 50 percent of healthy americans and canadians in a specifi
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The component of the dri reflects the requirement of a nutrient for 50 percent of healthy americans and canadians in a specific life stage and gender is Estimated Average Requirement (EAR).

What is EAR?

A daily food intake number known as the Estimated Average Requirement (EAR) is one that is thought to satisfy the needs of 50% of healthy persons in a given life stage and gender group.

Based on a review of the scientific literature, the estimated average requirements (EAR) are predicted to meet the needs of 50% of the population in that age range.

It serves as the foundation for the creation of RDAs and is employed to assess the sufficiency of nutritional consumption for a given population.

To learn more about EAR click the given link

brainly.com/question/14449512

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6 0
1 year ago
Which symbol in a chemical equation separates the reactants from the products ?
Lana71 [14]

Answer:

Explanation:

The arrow symbol in a chemical equation separates the reactants from products. A chemical reaction is process in which chemical changes leads to the formation of products from reactants.

4 0
3 years ago
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The IUPAC name of(CH3)2CHCH2CH=CH2
jarptica [38.1K]

Answer:

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Explanation:

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There are certain rules for naming organic chemical compounds as per IUPAC. The name of given (CH3)2CHCH2CH=CH2 will be based on the same rules.

  • At first find out the longest continuous chain and number the chain consecutively (preference given to double and single bonds), so numbering will start from right to left. the given chemical is 5 Carbon chain long.
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  • Assemble the name in alphabetical order using the full name using correct prefix and suffix.  

4-Methyl-1-pentene is the name of this chemical, as methyl is in 4th carbon position, Pent for 5 carbon chain and -ene (suffix) for one double bond).

Hence, the correct answer is "4-Methyl-1-pentene".

6 0
3 years ago
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