The displacement is the vector with
magnitude
distance between position at 5 sec and position at 8 sec
and direction
direction from position at 5 sec to position at 8 sec .
The route followed during the time interval is irrelevant.
Answer:
a)
The analytic expression for p(V) is 
b)
The expression of the work in terms of p0 ,V0,V1 is
![W= \frac{5}{2} P_{0}[V_{0}-V_{0}^{7/5}V_{1}^{-2/5}]](https://tex.z-dn.net/?f=W%3D%20%5Cfrac%7B5%7D%7B2%7D%20P_%7B0%7D%5BV_%7B0%7D-V_%7B0%7D%5E%7B7%2F5%7DV_%7B1%7D%5E%7B-2%2F5%7D%5D)
c)
The change in internal energy of the gas
![\delta U = \frac{5}{2}P_{0}[V_{0}^{7/5}V_{1}^{-2/5}-V_{0}]](https://tex.z-dn.net/?f=%5Cdelta%20U%20%3D%20%5Cfrac%7B5%7D%7B2%7DP_%7B0%7D%5BV_%7B0%7D%5E%7B7%2F5%7DV_%7B1%7D%5E%7B-2%2F5%7D-V_%7B0%7D%5D)
Explanation:
The explanation is shown on the first, second and third
The main activity that is involved in studying of physics is the study of natural laws. The study of physics has to do with many aspects of the universe. Physics majorly looks into the natural laws that operate in the universe and describe how they affect matter in relation to time.
Answer:
You were a freeloader of my questions, so I'll be one too.
Answer:
1. The frequency of the incident light must be equal to or greater than the threshold frequency of the photons before emission could take place.
2. The intensity of the incident light is proportional to the amount of photons released. The higher the intensity of light, the greater the amount of photons ejected.
Explanation:
1. Photoelectric effect is the process by which light with sufficient frequency falls on the surface of a material, e.g metal, to emit electrons. The incident light must have a minimum value of required frequency for the electrons to be ejected. This energy is termed work function which is a function of frequency.
So for emission to take place, the frequency of the incident light must be equal to or greater than the threshold frequency of the photons.
2. The intensity of light is a measure of the amount of light per unit area. When the intensity of incident light increases, the probability that photons would be released increases. The intensity of the incident light is proportional to the amount of photons released.
