How to know physics very well
And to thermo dynamics
First and second law of thermodynamics
Answer:
Study effectively!
Explanation:
Understand the three laws of thermodynamics. These laws form the foundation of the subject and are essential to understand in order to make progress.
Learn the properties of gases and their relationships to temperature, pressure, and volume. These concepts are central to the study of thermodynamics.
Practice calculating work and heat in various systems. This will help you understand how energy is transferred in thermodynamic processes.
Learn about the different types of thermodynamic systems and their corresponding state variables. This will help you understand how to analyze and model different types of systems.
Familiarize yourself with the concept of entropy and how it relates to the second law of thermodynamics. This will be important for understanding the behavior of systems over time.
By focusing on these specific topics, you should be able to improve your understanding of thermodynamics and become proficient in the subject.
A piece of a neutral dielectric is put near a very positively charged metal sphere of a Van de Graaff generator.
[The dielectric is put near the generator by being placed in the palm of a insulating
glove and put ~10 cm from the sphere.] What happens to the dielectric? Explain. [An ideal dielectric is
an insulating medium in which the electrons and nucleus are influenced subtly by external influences.]
The following is the explanation for the given question:
What are Dielectrics?
Dielectrics can generally be described as materials with very low electrical conductivity. It act as an insulator which has no free electrons. When an electric field is applied dielectrics can be easily polarized.
Explanation:
By induction, the negative charges in the neutral dielectric are nearer to the positive sphere, which means by induction negative and positive charges are separated in the dielectric. Negative charges are nearer to the positive metal sphere and positive charges are further from the metal sphere as shown in the below diagram.
Hence, the negative charges are nearer to the positive metal sphere and positive charges are further from the metal sphere.
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Because the neutral dielectric negative charges are closer to the positive sphere through induction, the dielectric negative and positive charges are separated.
Negative charges are closer to the positive metal sphere than positive charges are to it. As a result, positive charges are further away from the positive metal sphere, while negative charges are closer to the positive metal sphere.
How do dielectrics work?Materials with a very low electrical conductivity are known as dielectrics. It serves as an insulator because it lacks free electrons. Dielectrics can easily become polarized when an electric field is applied.
When a dielectric is placed in an external electric field, what happens?A dielectric becomes polarized when placed in an electric field. A polarized material has a smaller electric field than the applied field.
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If Janine is a typical middle-aged woman, she is likely to be concerned about all of the following things except for one. Identify the option that is generally not a concern for the average middle-aged woman ?
For a typical middle-aged woman, there are certain priorities for them such as job stability, kids, and so on, but one factor that is generally not a concern for the average middle-aged woman is how to train for the Olympics
Who is a middle-aged woman?Midlife, the stage of a woman's life between childhood and elder maturity, has been called a time of transition. Women between the ages of 40 and 65 have been the focus of midlife research because they often go through a number of social, psychological, and biological shifts during this time.
Hence, it can be seen that while there are genuine concerns for a middle-aged woman, the answer choice that is generally not a concern for the average middle-aged woman is to become an Olympian.
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If Janine is a typical middle-aged woman, she is likely to be concerned about all of the following things except for one. Identify the option that is generally not a concern for the average middle-aged woman ?
train for the Olympics
have kids
raise a family
Whose findings have the most in common with Roy Kerr’s discovery of how a noncharged, rotating massive object (like a supermassive black hole) affects its gravitational field?
Schwarzschild’s understanding of the ratio of mass to compression size before an object becomes a black hole
Einstein’s theory of relativity that posits that objects can curve the fabric of space
John Michell’s idea that there was an object with an escape velocity greater than the speed of light
Pierre-Simon de LaPlace’s conclusion that light could never escape a body big enough to have a gravitational force greater than the speed of light
The individual whose findings have the most in common with Roy Kerr’s discovery of how a noncharged, rotating massive object (like a supermassive black hole) affects its gravitational field is Einstein’s theory of relativity which posits that objects can curve the fabric of space.
Who was Roy Kerr and what was his discovery?The Kerr geometry, a precise response to the Einstein field equation of general relativity, was discovered by New Zealander mathematician Roy Patrick Kerr. His method simulates the gravitational environment around a huge, rotating, uncharged object, such as a rotating black hole. Before spinning black holes were discovered, his solution to Einstein's equations anticipated their existence.
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while pushing a crate with a constant force is the crate traveling at a constant speed, increasing speed, or decreasing speed?
Due to the friction's opposing force, the crate travels at a constant speed; otherwise, its speed would increase.
When the individual stops pushing, what happens to the crate's speed?The crate continues to move when the worker stops pushing, albeit more slowly. However, since the floor and the bottom of the container are still moving past one another, a friction force (frict) directed against the motion of the crate will still exist.
What drives the crate's acceleration beside the truck?A flatbed truck's bed has a large, hefty crate on it. The crate accelerates as well because it is connected to the truck and continues to move forward as it does. The crate's acceleration is due to what force.
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