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Alona [7]
4 years ago
12

Which one is the best explanation of energy

Chemistry
2 answers:
Rudik [331]4 years ago
8 0
Hello! :)

Energy, definition; Power derived from the utilization of physical or chemical resources, especially to provide light and heat to work machines.

Hope this helps >.<
Dmitriy789 [7]4 years ago
3 0

Answer:

Explanation:

Energy is defined as the capacity or ability to do work such as moving an object against a force, like frictional force. There are two main type of energy that are:

  1. Potential energy , it is denoted with symbol U. It is a stored energy or energy which is due to it's position. For example, energy stored in a ball when it is taken to the building top.
  2. Kinetic energy, it is denoted as K.E. . It is the energy that an object posses due to it's motion. For example, collision of pool balls.  
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How do SMRs provide more flexibility than ordinary nuclear reactors?
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The SMRs can adjust their energy output using coolants and control rods.

Power plants can be built to fit locations with less demand or less space.

Explanation:

I think that it is but I am not sure.

7 0
3 years ago
What is the change in gravitational potential energy of an apple with a mass of 0.25 kg if it falls 0.7 m from a table. Estimate
Drupady [299]

Answer:

1.71675 J

Explanation:

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8 0
3 years ago
Kinetic energy is energy that an object possesses because of its
uysha [10]

Kinetic energy is the energy possessed by an object due to its motion. If an object is moving, then it has kinetic energy. If an object has kinetic energy, then it is moving. Many students confuse kinetic energy with potential energy.

4 0
3 years ago
NaOH+HCl-&gt;............
Oxana [17]

Answer:

NaCl+H20

Explanation:

It is a neutralisation reaction in which NaOH is a base and HCl is an acid. On reaction it forms salt and water.

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3 0
3 years ago
Read 2 more answers
Pressure gauge at the top of a vertical oil well registers 140 bars. The oil well is 6000 m deep and filled with natural gas dow
andreyandreev [35.5K]

Explanation:

(a)  The given data is as follows.

              Pressure on top (P_{o}) = 140 bar = 1.4 \times 10^{7} Pa       (as 1 bar = 10^{5})

              Temperature = 15^{o}C = (15 + 273) K = 288 K

         Density of gas = \frac{PM}{ZRT}

                \frac{dP}{dZ} = \rho \times g

               \frac{dP}{dZ} = \int \frac{PM}{ZRT}

                \int_{P_{o}}^{P_{1}} \frac{dP}{dZ} = \frac{Mg}{ZRT} \int_{0}^{4700} dZ

           ln (\frac{P_{1}}{P_{o}}) = \frac{18.9 \times 10^{-3} \times 9.81 \times 4700 m}{0.80 \times 8.314 J/mol K \times 288 K}

                              = 0.4548

                     P_{1} = P_{o} \times e^{0.4548}

                                 = 1.4 \times 10^{7} Pa \times 1.5797

                                 = 2.206 \times 10^{7} Pa

Hence, pressure at the natural gas-oil interface is 2.206 \times 10^{7} Pa.

(b)   At the bottom of the tank,

                 P_{2} = P_{1}  + \rho \times g \times h

                             = 2.206 \times 10^{7} Pa + 700 \times 9.81 \times (6000 - 4700)[/tex]

                             = 309.8 \times 10^{5} Pa

                             = 309.8 bar

Hence, at the bottom of the well at 15^{o}C pressure is 309.8 bar.

6 0
4 years ago
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