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Neporo4naja [7]
3 years ago
5

Which of the following actions would require the company to obtain a permit for discharge from the EPA? a. Releasing water back

into a stream after it was used in production with the only change being its temperature. b. Releasing water back into a stream after it was used in production, but in a state cleaner than it entered the factory. c. Releasing water into a pond on company property. d. Releasing water from a power plant cooling tower into the ocean. e. All of the above would require an EPA permi
Physics
1 answer:
Fiesta28 [93]3 years ago
6 0

Answer:

e. All of the above would require an EPA permit

Explanation:

For a company to discharge their by-products or waste such as wastewater, the company will need to obtain a specific permit for the Environmental Protection Agency (EPA). The EPA was formed to ensure that the integrity of the environment is not compromised. Thus, all of the options in the given question requires an EPA permit.

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Which formula represents final velocity of an object with average acceleration?
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On a clear day at a certain location, a 119-V/m vertical electric field exists near the Earth's surface. At the same place, the
IrinaVladis [17]

Answer:

(a) 62.69 nJ/m^3

(b) 1015.22 μJ/m^3

Explanation:

Electric field, E = 119 V/m

Magnetic field, B = 5.050 x 10^-5 T

(a) Energy density of electric field = \frac{1}{2}\varepsilon _{0}E^{2}

          =\frac{1}{2}\times 8.854\times 10^{-12}\times 119\times 119

          = 6.269 x 10^-8 J/m^3 = 62.69 nJ/m^3

(b) energy density of magnetic field = \frac{B^{2}}{2\mu _{0}}

=\frac{\left ( 5.05\times 10^{-5} \right )^{2}}{2\times 4\times 3.14\times 10^{-7}}

= 1.01522 x 10^-3 J/m^3 = 1015.22 μJ/m^3

8 0
3 years ago
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3 0
3 years ago
give an example of motion in which displacement of the particle is zero but acceleration is not zero in journey?
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Motion of a ball thrown by a person upwards and caught after some time is an example of motion in which displacement of the particle is zero but acceleration is not zero in journey.

The displacement of the ball is zero because the starting and end point of the motion are same, i.e, the person's hands.During its motion, the acceleration of ball is constant and non zero called as acceleration due to gravity, g= -9.8 m/s². The velocity of ball is continuously changing. It first decreases during the upward motion of the ball and then increases during the downward journey.The acceleration remains constant and non zero all the time.

4 0
2 years ago
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