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Greeley [361]
3 years ago
8

Energy can be described in many ways. From the list below, what is the best definition of energy?

Physics
2 answers:
max2010maxim [7]3 years ago
8 0

the strength and vitality required for sustained physical or mental activity.

"changes in the levels of vitamins can affect energy and well-being"

synonyms: vitality, vigor, life, liveliness, animation, vivacity, spirit, spiritedness, verve, enthusiasm, zest, vibrancy, spark, sparkle, effervescence, ebullience, exuberance, buoyancy, sprightliness; More

2.

power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.

Have a great day ~Matya

galben [10]3 years ago
7 0

There are no good descriptions or definitions of energy on the list of choices you provided.  A big part of the reason for this is that you didn't provide any list of choices.

In Physics, the definition of 'Energy' is '<em>The ability to do work</em>'.

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prohojiy [21]

Answer:

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3 years ago
A dog has a mass of 20 kg. If the dog is pushed across the ice with a force of 40 N, what is its acceleration?
olasank [31]

Answer:

The acceleration is 2 m/s2.

Explanation:

We calculate the acceleration (a), with the data of mass (m) and force (F), through the formula:

F = m x a  ---> a= F/m

a = 40 N/20 kg                   <em>  1N= 1 kg x m/s2</em>

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7 0
3 years ago
3 points
Ilia_Sergeevich [38]

Answer:

Potential

Explanation:

The water in the bathtub has more potential energy than that in the tea cup because it has a greater number of water molecules.

Mass is a parameter that is very instrumental in determining potential energy.

The potential energy of a body is the energy due to the position of that body.

   Potential energy  = mass x acceleration due gravity x height

Mass is the amount of matter in a substance. Water in the tub will have more mass and contain a greater number of water molecules there in.

Since potential energy is directly proportional to mass, then, it will have a greater amount of potential energy.

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