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4. (2ptsx5 10pts) On page 8 of the lecture 2 slides, we learnt SI derived units....
Answer all parts except the ones refering to lecture slides. Temperatures on planets. To a good...
Answer all parts except the ones refering to lecture slides.
Temperatures on planets. To a good approximation, stars and planets emit their energy like a black body, which means the energy flux (energy per unit area and per unit time) at the solar surface (radius R_s = 7 times 10^8 m) is given by F = sigma_SBT^4, where sigma_SB = 5.67 times 10^8 W m^-2 K^-41 is the Stefan-Boltzmann constant. [Remember, energy per unit time is power and it- is...
2.8 cgs units. -An alternative system of units to SI is the cgs system, in which...
2.8 cgs units. -An alternative system of units to SI is the cgs system, in which the unit of mass is the gram (g) and the unit of length is the cen timctre. Establish the following conversion table (which is really here for your reference) and construct the reverse table to turn SI into cgs. Cgs SI 1 cm s1 -3 velocity density dynamic viscosity 1 kinematic viscosity em2s 10-2 ms 10* kg m3 10-lkg m-'s- 10 m2 s-i cm...
3. Since students in PHYS 204 seem not to like units, we now want to explicitly...
3. Since students in PHYS 204 seem not to like units, we now want to explicitly train them. Simplify the following unit expressions; all reduce to unitless-, simple units with/without ezponent-, or a fraction of two simple units results; use a separate piece of paper to allow yourself enough space: A2 s2.V m.s2 A s kg m N.V m A.s A s m2 g m A V.s d) f) s3 A V2 kg m2 W s3 kg h) W2. $4...
A) In lecture we derived the estimate of B in WLS as Derive A.wls when p-1. (It should have a for...
a) In lecture we derived the estimate of B in WLS as Derive A.wls when p-1. (It should have a form similar to simple linear regression.) (Hints: Notice that we can write a weighted average as analogues of the sums of squares identities we've used; you should derive these if you need to use them.) . You may need to use weighted b) Assume we have the following data: T1 T2 y2 That is, we have a total of n...
2. In lecture, we have derived the thermodynamic definition of temperature, OS In this problem, you...
2. In lecture, we have derived the thermodynamic definition of temperature, OS In this problem, you will examine what happens to the entropy (i.e., the number of microstates) when two systems with different temperatures interact and exchange energy. The result foreshadows what we will later get to know as the second law of thermodynamics (a) *D1* A system at temperature and energy E absorbs a small amount of energy ΔΕ. Show that the change in entropy is approximately equal to...
4. [14pts total] In class we solved a variation on the Atwood machine to find the...
4. [14pts total] In class we solved a variation on the Atwood machine to find the mag- nitude of the acceleration of the masses, a, and the tension in the string connecting them, T. Now consider this arrangement: e me 02 / Figure 1 If we had solved the case shown in Figure 1, where the surfaces are frictionless and the pulley is massless and frictionless, we would have found: (_ (m2 sin 02 – mj sin 01)g (mi +...
In our course slides, we show two implementations of ??(??) = 2?? 2+4???6 ?? 2+3??+2 as...
In our course slides, we show two implementations of ??(??) =
2?? 2+4???6 ?? 2+3??+2 as show in the following figures. A. (5
points) Prove that the following block implements ??1(??)/(1 + ??1
(??) +??2(??)) B. (10 points) Implement the system ??(??) = 2???3
?? 2+5??+4 by both implementations
(15 points) In our course slides, we show two implementations of H(s) 2s2+4s-6 s2 +3s+2 as show in the following figures y(t) 2 4 6 6 W(t) w(t) 2 -8 A....
2. [10pts) In considering the EPR experiment, we used the anti-correlation property of the spin-0 state...
2. [10pts) In considering the EPR experiment, we used the anti-correlation property of the spin-0 state as an essential aspect of the analysis. In this question you are going to show that this property does not depend on the choice of direction of axis of the Stern-Gerlach analyzers. Show that the entangled state: |4= (1 131] 1)2 – 1 1/)2) is physically equivalent to the general state: 4) = - (11)in1)2n - | 1)in 1)2n) where ñ is a unit...
4. Let’s say we have a 9 kg air mass. It is warmed from 37F to...
4. Let’s say we have a 9 kg air mass. It is warmed from 37F to 78F under a constant pressure of 605 mb. Determine: (Show all SI Units) (a) Heat absorbed by the air (b) Work done (c) Total change in internal energy
EXPERIMENT #9: SPECTRUM OF THE HYDROGEN ATOM ADDITIONAL QUESTIONS 1, What does the energy of the...
EXPERIMENT #9: SPECTRUM OF THE HYDROGEN ATOM ADDITIONAL QUESTIONS 1, What does the energy of the electron from the hydrogen atom become when n is a very large number, or approaching infinity? We say an electron with this energy has separated from the nucleus, which is now an ion. Determine the quantity of energy (AE) required to ionize an electron from its ground state in the hydrogen atom. 2. The Bohr model holds for any one-electron atom. Calculate the lowest...
Answer all parts except the ones refering to lecture slides.
Temperatures on planets. To a good approximation, stars and planets emit their energy like a black body, which means the energy flux (energy per unit area and per unit time) at the solar surface (radius R_s = 7 times 10^8 m) is given by F = sigma_SBT^4, where sigma_SB = 5.67 times 10^8 W m^-2 K^-41 is the Stefan-Boltzmann constant. [Remember, energy per unit time is power and it- is...
2.8 cgs units. -An alternative system of units to SI is the cgs system, in which the unit of mass is the gram (g) and the unit of length is the cen timctre. Establish the following conversion table (which is really here for your reference) and construct the reverse table to turn SI into cgs. Cgs SI 1 cm s1 -3 velocity density dynamic viscosity 1 kinematic viscosity em2s 10-2 ms 10* kg m3 10-lkg m-'s- 10 m2 s-i cm...
3. Since students in PHYS 204 seem not to like units, we now want to explicitly train them. Simplify the following unit expressions; all reduce to unitless-, simple units with/without ezponent-, or a fraction of two simple units results; use a separate piece of paper to allow yourself enough space: A2 s2.V m.s2 A s kg m N.V m A.s A s m2 g m A V.s d) f) s3 A V2 kg m2 W s3 kg h) W2. $4...
a) In lecture we derived the estimate of B in WLS as Derive A.wls when p-1. (It should have a form similar to simple linear regression.) (Hints: Notice that we can write a weighted average as analogues of the sums of squares identities we've used; you should derive these if you need to use them.) . You may need to use weighted b) Assume we have the following data: T1 T2 y2 That is, we have a total of n...
2. In lecture, we have derived the thermodynamic definition of temperature, OS In this problem, you will examine what happens to the entropy (i.e., the number of microstates) when two systems with different temperatures interact and exchange energy. The result foreshadows what we will later get to know as the second law of thermodynamics (a) *D1* A system at temperature and energy E absorbs a small amount of energy ΔΕ. Show that the change in entropy is approximately equal to...
4. [14pts total] In class we solved a variation on the Atwood machine to find the mag- nitude of the acceleration of the masses, a, and the tension in the string connecting them, T. Now consider this arrangement: e me 02 / Figure 1 If we had solved the case shown in Figure 1, where the surfaces are frictionless and the pulley is massless and frictionless, we would have found: (_ (m2 sin 02 – mj sin 01)g (mi +...
In our course slides, we show two implementations of ??(??) =
2?? 2+4???6 ?? 2+3??+2 as show in the following figures. A. (5
points) Prove that the following block implements ??1(??)/(1 + ??1
(??) +??2(??)) B. (10 points) Implement the system ??(??) = 2???3
?? 2+5??+4 by both implementations
(15 points) In our course slides, we show two implementations of H(s) 2s2+4s-6 s2 +3s+2 as show in the following figures y(t) 2 4 6 6 W(t) w(t) 2 -8 A....
2. [10pts) In considering the EPR experiment, we used the anti-correlation property of the spin-0 state as an essential aspect of the analysis. In this question you are going to show that this property does not depend on the choice of direction of axis of the Stern-Gerlach analyzers. Show that the entangled state: |4= (1 131] 1)2 – 1 1/)2) is physically equivalent to the general state: 4) = - (11)in1)2n - | 1)in 1)2n) where ñ is a unit...
EXPERIMENT #9: SPECTRUM OF THE HYDROGEN ATOM ADDITIONAL QUESTIONS 1, What does the energy of the electron from the hydrogen atom become when n is a very large number, or approaching infinity? We say an electron with this energy has separated from the nucleus, which is now an ion. Determine the quantity of energy (AE) required to ionize an electron from its ground state in the hydrogen atom. 2. The Bohr model holds for any one-electron atom. Calculate the lowest...
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