Answer:
maybe it's because a bucket of water has more density than egg B
Explanation:
An adiabatic process is defined as a process in which transfer of heat is equal to zero. According to the first law of thermodynamics, any change in the internal energy is actually in the form of work done.
This means that change in internal energy will be as follows.
Change in internal energy = -work one by the gas
Therefore, we can conclude that true statements for an adiabatic process is as follows.
- During an adiabatic process, the internal energy of the system changes.
- During an adiabatic process, there is no heat transfer into or out of the system.
Answer:
Option A.
Explanation:
In quantum physics <u>there is a law to relate the position and the momentum of the particle</u>, it says that if we know with precision where is a quantum particle, we can not know the momentum of this particle, in other words, the velocity of the particle. So, when we measure the velocity of the particle we find the correct value of the particle, but we can not determine with accuracy where is the particle. This law is known as the Heisenberg's uncertainty principle and, its expressed as follows:
<em>where Δx: is the position's uncertainty, Δp: is the momentum's uncertainty and h: is the Planck constant.</em>
Therefore, the correct answer is A: measuring the velocity of a tiny particle with an electromagnet has no effect on the velocity of the particle. It only affects the determination of the particle's position.
I hope it helps you!
Answer:
Explanation:
(a) This problem can be solved by using the formula for Compton effect
where h is the planck constant, Φ is the angle of the scattered photon, m is the mass of the particle (in this case we take an electron) and c is the speed of ligth.
By taking the wavelength of the scattered photon and by replacing we have
(b)
(c)
The energy is conserved, hence we have
that is, the sum of the kinetic energy of the scattered electron and the energy of the scattered photon is equal to the energy of the incident photon. By taking Ek we have
(d)
I hope this is useful for you
regards
Answer:
Explanation:
Psychological perspectives: Anxiety disorders: Identification and intervention. of situations, and not just one, as in many other anxiety disorders. episodes, or worsen symptoms, but no single stressor can explain the course of the disorder.
According to the cognitive perspective, one creates coping responses by transforming the anxiety into fear, and develops a plan to deal with it, which will create a sense of security. State and trait anxiety refers to the personality traits of an individual.
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