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stira [4]
3 years ago
15

What is the definition of “potential energy”?

Physics
2 answers:
jeka943 years ago
6 0

Correct answer choice is:

B) The energy that a piece of matter has because of its position or because of the arrangement of parts.


Explanation:

Potential energy is described as mechanical energy, saved energy, or energy created by its location. The energy that a ball has when sat at a top of a perpendicular hill while it is about to roll down is an example of potential energy. An object can store energy as the effect of its position. For example, the heavy ball of a wrecking machine is saving energy when it is maintained at a raised position. This stored energy of position is indicated to as potential energy.

ser-zykov [4K]3 years ago
5 0
Potential energy is the energy stored in matter because of
its position or because of the arrangement of parts.
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Explanation:

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What is the total energy q released in a single fusion reaction event for the equation given in the problem introduction? use c2
kkurt [141]

Answer:

4.3\cdot 10^{-12} J

Explanation:

The fusion reaction in this problem is

4^1_1H \rightarrow ^4_2He +2e^+

The total energy released in the fusion reaction is given by

\Delta E = c^2 \Delta m

where

c=3.0\cdot 10^8 m/s is the speed of light

\Delta m is the mass defect, which is the mass difference between the mass of the reactants and the mass of the products

For this fusion reaction we have:

m(^1_1H)=1.007825u is the mass of one nucleus of hydrogen

m(^4_2 He)=4.002603u is the mass of one nucleus of helium

So the mass defect is:

\Delta m =4m(^1_1 H)-m(^4_2 He)=4(1.007825u)-4.002603u=0.028697u

The conversion factor between atomic mass units and kilograms is

1u=1.66054\cdot 10^{-27}kg

So the mass defect is

\Delta m =(0.028697)(1.66054\cdot 10^{-27})=4.765\cdot 10^{-29}kg

And so, the energy released is:

\Delta E=(3.0\cdot 10^8)^2(4.765\cdot 10^{-29})=4.3\cdot 10^{-12} J

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Answer:

its 24

Explanation:

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Explanation:

Below is an attachment containing the solution

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3 years ago
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