A −12 nC charge is located at (x,y) = (1.0 cm, 0 cm).What is the electric field at the position (x₁,y₁) = (5.0 cm, 0 cm) in component form?What is the electric field at the position (x₂,y₂) = (−5.0 cm, 0 cm) in component form?What is the electric field at the position (x₃,y₃) = (0 cm, 5.0 cm) in component form?Express your answer in terms of the unit vectors i^ and j^. Use the 'unit vector' button to denote unit vectors in your answer.

Answers

Answer 1

Answer:

Final answer:

The electric fields at the points (5.0 cm, 0 cm), (-5.0 cm, 0 cm), and (0 cm, 5.0 cm) due to a -12 nC charge are -67.5x10^3 i^ N/C, 30x10^3 i^ N/C and -67.5x10^3 j^ N/C respectively.

Explanation:

The subject of this question is Electric Field, a part of physics. Specifically, we're looking at point charges and using the formula for the electric field due to a point charge, which is E = k|Q|/r², where k is the Coulomb's constant, Q is the charge and r is the distance to the point where the electric field is calculated.

At the position (5.0 cm, 0 cm), the distance from the charge is 4.0 cm. Thus, the electric field is E₁ = k|-12 x 10^(-9) C|/(0.04 m)² = -67.5 x 10^3 N/C. In terms of unit vectors, this is -67.5 x 10^3 i^ N/C, because the field points in the negative x direction.
At the position (-5.0 cm, 0 cm), the distance from the charge is 6.0 cm. Thus, the electric field is E₂ = k|-12 x 10^(-9) C|/(0.06 m)² = -30 x 10^3 N/C. In terms of unit vectors, this is 30 x 10^3 i^ N/C, because the field points in the positive x direction.
At the position (0 cm, 5.0 cm), the field is purely in the y-direction, and the point is 4.0 cm above the charge. Thus, the field is E₃ = k|-12 x 10^(-9) C|/(0.04 m)² = -67.5 x 10^3 N/C. In terms of unit vectors, this is -67.5 x 10^3 j^ N/C.

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Answers

The answer is A. A warm and humid day with a wind moving in the same direction as the sound.

Sound waves travel through a medium such as solid, liquid, or gas. It travels faster when the molecules of its medium are closer together. This is the reason why it travels the slowest through dry air. When air is wet or humid, sound can travel faster because sound travels faster through water.

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The answer is A. A warm and humid day with a wind moving in the same direction as the sound. hope this helps!!!!

Placing ice on a sprained ankle this is an example of conduction, convection, radiation?

Answers

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Answers

Supernova occurswhen black holes stretch so much running out of nuclear fuel. When a starcollapses to form a black hole, its mass increases. Supernovas have greatermasses than black holes. One example application of this is the theory of BigBang. Fromtheories such as Ekpyrotic theory, White Holes, Matrix theory, and Quantumtheory, the Big Bang theory is the theory mostly accepted by scientists.According to the theory, the universe started as a singularity, that is, from ablack hole under extreme gravitational pressure and expanded (instead ofexploded) and cooled. Its cooling, according to the theory, is still happeningnow as of the moment.

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Answers

The correct statement is: An atomic nucleus contains most of the atom’s mass.

All of the atom's neutrons and protons are in the nucleus, and the atom's electrons are outside the nucleus.

It would take more than 1,800 electrons to add up to the mass of one neutron or one proton.

But no atom has more than around 240 electrons, so we can see that almost all of the atom's mass is in the nucleus.

Final answer:

The atomic nucleus is best described as containing most of the atom's mass due to the presence of protons and neutrons, not as being negatively charged or mostly empty space.

Explanation:

The correct statement that describes an atomic nucleus is that an atomic nucleus contains most of the atom’s mass. This is due to the presence of protons and neutrons in the nucleus which carry nearly all the mass of the atom. The nucleus is not negatively charged, it carries a positive electric charge because of the protons. It is also not correct to say that it's mostly empty space as this describes the whole atom's structure where most of the space is taken up by electrons circling the nucleus.

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This diver has just jumped up from the end of the diving board. After she dives down and is falling toward the water, she’ll have kinetic energy, or the energy of moving matter. But even as she is momentarily stopped high above the water, she has energy. Do you know why?

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Answer:

Mechanical energy is divided into two:Kinetic energy and Potential energy....The diver diving down exhibits kinetic energy because she is moving but when she has stopped it means she has potential energy which means that a body is at rest....

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Answers

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Answer:

Energy cant be created or lost, it only changes form.

Explanation:

The answer above is correct.

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