. Find percent of radiant energy contained in the visible spectrum for a blackbody at 5800 K. Use the closed form series approach. Recall that this series is given as F(ζ)=15/π^4 ∑_(n=1)^20▒e^(-nζ)/n (6/n^3 +6 ζ/n^2 +ζ^3+3 ζ^2/n) (Hint: Consider using readily available software to implement and solve for F) 1b. Find total emissive power of the blackbody at 5800 K. 2. Find percent of radiant energy contained in the visible spectrum for a blackbody at 2500 K. Choose either tabulation or closed form series approach. For tabulation, use the blackbody radiation tabulation provided. 3. Given a PV cell with 0.25 volts and 2.5 amperes output, determine the number of cells and the cell arrangement such that the module would provide 5 V and 75 W. 4. Ideally, how much energy could a 12 V, 100 amp-hour battery store? Assume that the battery does not change voltage with discharge. Provide answer in units of Joules.

The Earth's magnetic field protects us from cosmic rays, which are extremely-high-energy subatomic particles generated by esoteric processes in interesting parts of the universe. To get an idea of how this protection might happen, pretend the earth's magnetic field has a constant value of 5.0 x 10^-5 T (northward) from the ground up to a height of 50 km.

(a) Suppose a high-energy proton (charge +1.6 x 10^-19 C, mass 1.67 x 10^-27 kg) hits the top of the earths magnetic field at some high velocity, call it v, straight. On the diagram, sketch the path it would follow.

(b) For what initial speed v would the proton just make it to the earth's surface?

(c) When the proton from part (b) reaches the surface, what is its velocity (magnitude and direction)?

(d) Would protons moving faster than your answer to (b) reach the ground? Would slower ones hit the ground?

(e) What does happen to the protons that don't hit the ground?

The isentropic efficiency of an ammonia, NH3, refrigeration plant is 0.88. The ammonia enters the compressor as dry saturated vapour at -16 ? and leaves the compressor in a superheated state at 11.67 bar. The refrigerant is then condensed and undercooled by 4K at constant pressure before being expanded at -16 ?.

(NEED TO USE STEAM TABLES FOR NH3, PLEASE ONLY ANSWER IF YOU HAVE A GOOD UNDERSTANDING OF REFRIGERTION)

a)Draw a schematic of the plant and the cycle on T-s and P-h coordinates.

Calculate:

b (i) the superheat temperature at the exit of the compressor

b (ii) the compressor work

b(iii) the refrigeration effect

b(iv) the coefficient of performance of the plant

b(v) the volume flow rate of the refrigerant measured at the compressor inlet for a plant refrigeration capacity of 500kW.

DATA Assume that the cp of ammonia at 11.67 bar is 4.86 kJ/kg

PLEASE DON'T JUST MAKE UP THE ANSWERS.

ANSWERS;

bi)118.1 oC

b(ii) 278.9 kJ/kg

b (iii) 1121.6 kJ/kg

b(iv) 4.02

b (v) 0.0493 m3 /s

From the information, what is element X?

a.) The wavelength of the radio waves sent by an FM station broadcasting at 97.1 MHz is 30.0 million (3.00 x 10^7) times greater than the wavelength corresponding to the energy difference between a particular excite stateof the hydrogen atom and the ground state.

b.) Let V represent the principle quantum number for the valence shell of element X. If an electron in the hydrogen atom falls from shell V to the inner shell corresponding to the excited state mentioned above in part a, the wavelength of light emitted is the same as the wavelength of an electron moving at a speed of 570 m/s.

c.) The number of unpaired electrons for element X in the ground state is the same as the maximum number of electrons in an atom that can have the quantum number designations n=2, ml= -1, and ms= -1/2.

d.) Let A equal the principle quantum number for the lowest energy excited state for hydrogen. The value of A also represents the angular momentum quantum number for the subshell containing the unpaired electron(s) for element X.

A dielectric-filled parallel-plate capacitor has plate area A = 30.0 cm2 , plate separation d= 8.00 mm and dielectric constant k = 4.00. The capacitor is connected to a battery that creates a constant voltage V= 15.0 V . Throughout the problem, use ϵ0 = 8.85×10⁻¹² C2/N⋅m2.

A) Find the energy U1 of the dielectric-filled capacitor.

Express your answer numerically in joules.

B) The dielectric plate is now slowly pulled out of the capacitor, which remains connected to the battery. Find the energy U2 of the capacitor at the moment when the capacitor is half-filled with the dielectric.

Express your answer numerically in joules.

C) The capacitor is now disconnected from the battery, and the dielectric plate is slowly removed the rest of the way out of the capacitor. Find the new energy of the capacitor, U3

Express your answer numerically in joules.

D) In the process of removing the remaining portion of the dielectric from the disconnected capacitor, how much work W is done by the external agent acting on the dielectric?

Express your answer numerically in joules.

The radial wave function for the hydrogen atom in three dimensions is given by
Rnl(r) = 1
r
ρ
l+1e
−ρ
v(ρ)
where v(ρ) = P∞
j=0 cjρ
j
is a polynomial of degree jmax = n−l−1 in ρ whose coefficients
are determined by the recursion formula
cj+1 =
2(j + l + 1 − n)
(j + 1)(j + 2l + 2)cj
.
(a) For n = 2 write down the allowed values of ml and jmax.

Hence by using the fact that ρ can be defined in terms of the Bohr radius a i.e.,
ρ = r/an, show that (don’t normalize)
R20(r) = c0
2a

1 −
r
2a

e
−r/2a
.

Write all spherical harmonics up to l = 2 (there are nine of them) in Cartesian form,
i.e. give expressions in terms of x, y, z, and r. You can either use the Rodrigues formula
for the Legendre polynomials or start with the given expressions for Y
m
l
in terms of θ
and φ. In any event you must show your work.

A 70 y/o female who had undergone right total hip replacement presents on the 5th postoperative day with central chest pain and acute-onset dypsnea. HPI. She has been immobile since the surgery PE. VS: low-grade fever; tachycardia; hypotension. central cyanosis; elevated Jugular venous pressure (JVP); right ventricullar gallop rythm with widely split S2 Labs. Arterial Blood Gas (ABGs); hypoxia and hypercapnia (type 2 respiratory failure). patient had sinus tachycardia on ECG Imaging. Doppler Ultrasound shot clot in the right common femoral vein. CXR, showed right lower lobe atelectasis. V/Q scan demonstrated three areas of ventilation-perfusion mismatch in right lung. Angio-pulmonary: confirmatory; (not rrequired if V/Q scan is high probability). Gross pathology. Large thrombus seen in pulmonary artery Micro pathology. Large occlusive thrombus seen in pulmonary artery with variable degree of recanalization. 3) Design a long term care protocol to adress this patient situation.

A 70 y/o female who had undergone right total hip replacement presents on the 5th postoperative day with central chest pain and acute-onset dypsnea. HPI. She has been immobile since the surgery PE. VS: low-grade fever; tachycardia; hypotension. central cyanosis; elevated Jugular venous pressure (JVP); right ventricullar gallop rythm with widely split S2 Labs. Arterial Blood Gas (ABGs); hypoxia and hypercapnia (type 2 respiratory failure). patient had sinus tachycardia on ECG Imaging. Doppler Ultrasound shot clot in the right common femoral vein. CXR, showed right lower lobe atelectasis. V/Q scan demonstrated three areas of ventilation-perfusion mismatch in right lung. Angio-pulmonary: confirmatory; (not rrequired if V/Q scan is high probability). Gross pathology. Large thrombus seen in pulmonary artery Micro pathology. Large occlusive thrombus seen in pulmonary artery with variable degree of recanalization. 2) Design a short term nursing protocol

his animation shows a coaxial capacitor with cylindrical geometry: a very long cylinder (extending into and out of the page) in the center surrounded by a very long cylindrical shell (position is given in centimeters, electric field strength is given in newtons/coulomb, and electric potential is given in volts). The outside shell is grounded, while the inside shell is at 10 V. You can click-drag to measure the voltage at any position

a cylindrical coaxial capacitor of length L is E = Q/2πrLε₀ = 2kQ/(rL), where Q is the total charge on the inside (or outside) conductor and r is the distance from the center.

1. Given, then, that the potential difference between the two conductors is V = (Q/2πLε0) ln(b/a) = (2Qk/L) ln(b/a), (b is the radius of the outer shell and a is the radius of the inner cylinder) show that the capacitance of this capacitor is (2πLε0)/ ln(b/a) = (L/2k)*(1/ ln(b/a)). i. This is a capacitance for a given length L. ii. You should also consider some limiting cases here and discuss. What happens as b approaches a? And what happens as b>>a?