1. why do two electrons repel when they interact? because they both have similar negative electric charge.
2. which of the following has kinetic energy? a spring traveling down a flight of stairs.
3. how are electric fields applied in the successful use of precipitator? smoke particles get charged by the precipitator, so they are then attracted to its charged plates.
4. in models of magnetic and electric fields, why are field vectors depicted by arrows? because they represent both their magnitude and direction.
5. a model depicts two balloons of the same size with identical negative charges being moved toward one another at the same speed. how will the balloons interact with each other? they will repel, moving in opposite directions at the same speed.
Just took it here’s the full answers only.
1. Because they both have similar negative electric charge.
2. A spring traveling down a flight of stairs.
3. Smoke particles get charged by the precipitator, so they are then attracted to its charged plates.
4. Because they represent both their magnitude and directions.
5. They will repel, moving in opposite at the same speed.
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@anonymous is correct!!!
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3-5 is wrong
Correct
1. Two electrons repel each other due to their similar negative electric charge. This can be explained by the principle of electrostatics, which states that like charges repel each other. The force of repulsion between two electrons is governed by Coulomb's law, which states that the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
To understand why electrons repel, we need to consider their charge. Electrons have a negative charge, and according to the fundamental principles of electricity, opposite charges attract each other while similar charges repel. Therefore, when two electrons come close to each other, their negative charges repel each other, resulting in the repulsive force between them.
2. The object that has kinetic energy in the given scenario is the spring traveling down a flight of stairs. Kinetic energy is the energy possessed by an object due to its motion. In this case, the spring is in motion as it travels down the stairs, so it possesses kinetic energy.
To determine which object has kinetic energy, we need to understand the definition of kinetic energy and identify the object that is in motion. In this scenario, the spring is described as "traveling down a flight of stairs," indicating that it is in motion. Therefore, the spring possesses kinetic energy.
3. Electric fields are applied in the successful use of a precipitator by charging smoke particles and attracting them to its charged plates. A precipitator is a device used to remove harmful particles, such as dust or smoke, from a gas stream.
To understand how electric fields are applied in a precipitator, we need to consider the principles of electrostatics. The precipitator charges smoke particles by applying a high voltage to its electrodes, creating an electric field. The electric field causes the smoke particles to gain a charge (usually negative) by the process of ionization.
Once the smoke particles are charged, they are attracted to the precipitator's plates, which have an opposite charge. The electric field created by the charged plates pulls the charged smoke particles towards them, causing them to stick to the plates. This process effectively removes the smoke particles from the gas stream.
4. Field vectors in models of magnetic and electric fields are depicted by arrows because they represent both the magnitude and direction of the field. A vector is a mathematical representation of a physical quantity that has both magnitude and direction.
In the case of magnetic and electric fields, the field vectors represent the strength (magnitude) and direction of the field at different points in space. By using arrows, the direction of the field can be depicted visually, while the length of the arrow can represent the magnitude or strength of the field.
Visualizing the field using arrows allows us to understand the direction and strength of the field at different points. This helps in analyzing and studying the behavior of magnetic and electric fields and their interactions with charged particles or magnets.
5. In the given model, two balloons of the same size with identical negative charges being moved toward one another at the same speed will repel each other. They will move in opposite directions at the same speed. This can be explained by the principle of electrostatics, specifically the repulsion between like charges.
When two objects with the same type of charge, in this case, identical negative charges, are brought closer to each other, they experience an electrostatic force of repulsion. The repulsion forces the balloons to move away from each other in opposite directions. Additionally, since both balloons are moving at the same speed, they will continue moving away from each other at that speed.
Understanding electrostatics allows us to predict and explain the behavior of charged objects when they interact with each other. In this case, the identical negative charges on the balloons repel each other, causing them to move apart.
Answers!!
1. A
2. B
3. A
4. A
5. C