<u>Answer</u>
10 feet
<u>Explanation</u>
The Occupational Safety and Health Administration (OSHA) requires one to be not less than 10 feet from overhead power lines that are 0-50,000 v for him or her safety suppose. High voltages above 50 Kv needs a bigger distance that 10 feet.
When current is flowing through a conductor, it produces an electric fields all around it. These fields spreads far from the conductor depending on the current flowing in it. When this fields are strong enough the can cause electrocution.
Answer: An object at rest has no kinetic energy, but it may have potential energy resulting from its location or structure.
Explanation: To find the answer, we need to know more about the kinetic and potential energies.
<h3>What is kinetic energy of a body?</h3>
- Kinetic energy is a form of mechanical energy possessed by a body by virtue of its motion.
- Kinetic energy of a body of mass m moving with a velocity v is given by,
<h3>What is potential energy?</h3>
- Potential energy is a form of mechanical energy possessed by a body by virtue of its position in the field or configuration.
- PE is always associated with a conservative force.
- There cannot be potential energy due to frictional or viscous forces.
Thus, we can conclude that, an object at rest has no kinetic energy, but it may have potential energy resulting from its location or structure.
Learn more about the kinetic and potential energies here:
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Answer:
Induced emf will be 0.468 volt
Explanation:
We have given diameter of wire d = 15.3 cm
So radius
So area
Change in magnetic field dB = 0.26 - 0.77 = -0.51 T
Time for change in magnetic field dt = 0.26 sec
We know that emf is given by
Answer:
Explanation:
En la zona apótica (profundidad inferior a 200 m); todo lo que queda de la luz solar es una luz tenue, opaca, azul-verde, demasiado impotente para siquiera considerar permitir que ocurra la fotosíntesis. Sin embargo, hay comida para tener; basura, trozos de plantas podridas y derroche de criaturas caen desde arriba para cuidar a los seres vivos en la zona apótica.
Las formas de vida a una profundidad inferior a 200 m dependen de los productos químicos que salen de los respiraderos; el procedimiento que utilizan para hacer los alimentos se llama quimiosíntesis en lugar de fotosíntesis.