A hydrostatic system consists of 0.1 moles of an ideal gas whose
specific heat capacity at constant volume, ??, is equal to 3?2
where R is the gas constant equal to 8.31 J mol–1 K–1. Its initial
pressure and volume are 32 Pa and 8 m3. In its final state, the
pressure is just 1 Pa and its volume increases eightfold. The
particular thermodynamic process can be represented on an indicator
diagram as a straight line joining the initial and final
states.
(a) Determine a relationship between the pressure and the volume of
the gas that represents the thermodynamic process.
(b) Establish a relationship between the temperature and the volume
of the gas valid for the thermodynamic process.
(c) Determine the volume of the gas when the temperature is a
maximum.
(d) Determine the temperature of the gas at the initial and final
states, and the maximum temperature attained by the gas in the
process.
(e) Imagine that the gas, while following the thermodynamic process
outlined above, is at some arbitrary state such that its volume is
V. This state is somewhere between the initial and final states.
Determine the heat exchange that occurs while the gas is traversing
(along the process) from the initial to the arbitrary state. Your
expression should be a function of V only.
(f) With reference to part (e), determine that volume which
corresponds to maximum heat exchange. Hence determine the
corresponding temperature.
In: Physics
1 - The plates of a spherical capacitor have radii of 38.9 mm and 40.2 mm.
(i) Calculate the capacitance. (in F)
(ii) What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance? (in cm^2)
______________
2 - Now in another experiment, The plates of a spherical capacitor have radii of 37.6 mm and 43.6 mm.
i) Calculate the capacitance. (in F)?
(ii) What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance?(in cm^2)
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What happens to the observer's local night sky as the observer's latitude gradually changes:
A. from the equator gradually towards the north pole
B. as local time passes from sunset to sunrise?
C. as local time passes over the course of several weeks and months?
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6. A one-dimensional diatomic crystal contains 2 different atoms with masses ?1 and ?2, with ?1< ?2, in each of its unit cell. Assume that there is interaction between every nearest neighbor atoms that can represented by a spring with spring constant ?. Derive the phonon frequency dispersion relation ?(?) of the crystal. Indicate which one is the acoustic branch and which one is the optical branch.
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A 2 km diameter thunderstorm produces 4.2 cm of rainfall in 4 hours. What is the power production from latent heat of condensation of this storm, in megawatts? A megawatt is a million watts and the average coal-fired plant in the US produces 677 megawatts.
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What is PET— what kind of image does it create and how?
Why use PET with CT rather than CT alone? Give the main reason/application.
What sort of radiation is involved? Is PET “perfectly safe”? If not, what are the dangers?
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why the longer the distance a force is applied from the fulcrum the greater the output force. I want to know how this works exactly and how does a larger distance affects the amount if work done by the force. does it has to do with the input force traveling longer vertically some how creating a greater output? So far I've just gotten very general information I hope you can help me to understand this more deeply thank you.
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You observe a binary system and see Doppler shifts in the Hβ lines from the two stars of 0.02 nm and 0.05 nm respectively. Patient observations show that the period is 22 years. If the system is inclined by 60◦ , what are the masses of the two stars?
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A lion spots a gazelle exposed on the plain. The gazelle is 35m from the bear, at a compass heading of 230 degrees. 5m from the gazelle, at a heading of 190 degrees, is the gazelle's herd. The top speed of the lion is 10m/s with a maximum acceleration of 5m/s^2 . The speed of the gazelle is 0.9m/s, and it is assumed that it is already moving at this speed. Starting from rest, will the lion be able to catch the gazelle before it reaches it's herd for safety?
*Please answer this to the best of your ability, I'm very confused about it.
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Shooting down planes from the ground during WWII was difficult. A timed explosive is used because hitting a moving aircraft with a single shot from a cannon is nearly impossible; This explosive allows you to be less accurate. You are responsible for aiming and setting the timed fuses for anti aircraft battery (cannon). You fire a projectile that is aerodynamic enough that you can ignore air resistance. The projectile leaves the barrel at 840m/s. Your target is at an altitude of 3000m and a horizontal distance of 4000m.
1.Find the flight time in algebraic expression.
2. At what angle above horizontal must you aim?
3.What does the delay need to be on the fuse?
In: Physics
a. Briefly explain Electrostatics. Express the fundamental
postulates (law)
for electrostatics in free space. Express it in both differential
and
integral forms?
b. Explain two ways a magnetic field can be produced?
c. There is no existence of a magnetic charge. Explain?
d. Write the expression for the law of conservation of magnetic
Flux?
Thanks chegg expert.Already rated.
In: Physics
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6. Select a contrast mode in microscopy. In the space below, describe and illustrate it in detail (hint: phase, dark-field, bright-field) (1 page limit)
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State how directions of the electric field, current, drift velocity, and current density related?
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Define 10 different “The right hand rule” first define the application and explain how the right hand rule is is applied to find the direction of physical concept .
please answer clearly in details
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