Consider the following naturally occurring forms of Hb. A. HbS (sickle-cell Hb): substitutes a V for a E on the surface B. Hb Cowtown: eliminates an ion pair involved in T-state stabilization C. Hb Memphis: substitutes one uncharged polar residue for another of similar size on the surface D. Hb Bibba: substitutes a P for a L involved in an a helix E. Hb Milwaukee: substitutes a E for a V F. Hb Providence: substitutes an N for a K that normally projects into the central cavity of the tetramer Of the above, which do you expect to be: LEAST likely to cause pathological symptoms. MOST likely to show pI values different from that of HbA on an isoelectric focusing gel. MOST likely to show an increase in the overall affinity of the hemoglobin for oxygen. EXPLAIN your answers.

2-6.

(i) Considering the effects of the ionic strength, use Excel to calculate the cell voltage of Zn | ZnSO₄ (x M) || PbSO₄(s) | Pb, where x: 1´10^-4, 5´10^-4, 1´10^-3, 5´10^-3, 0.01, and 0.05 M.

PbSO₄ → Pb²⁺ + SO₄²⁺, K_sp = 1.69 ´ 10^-8

Pb²⁺ + 2e^- → Pb, E^o = -0.13 V vs. NHE

Zn²⁺ + 2e^- → Zn, E^o = -0.76 V vs. NHE

(ii) Recalculate the cell voltage when 1.0 M KNO₃ is present in the anodic half-cell.

(iii) Plot the results of (i) and (ii) against log(x) together on one sheet.

(iv) Give conclusions on the difference between the curves.

Thank you.

The two wires carry current i₁ and i₂, respectively, with positive current to the right. The charge q is positive and has velocity v to the right.

True False  If i₁ is greater than i₂, then the force on q is north.
True False  If v = 0, then the force on q is zero.
True False  If i₂ = - i₁ then the force on q equals zero.
True False  If i₂ = 0 and i₁ is greater than zero, then the force on q points into the page.
True False  If i₁ = 0 and i₂ is greater than zero then the force on q is south.
True False  If i₂ = 0 and i₁ is greater than zero, then the magnetic field near charge q points out of the page.
True False  If i₁ = i₂, then the wires are attracted to each other.

14.7 Batch and continuous biomass production Pseudomonas methylotrophus is used to produce single cell protein from methanol in a 1000-m3 pressure-cycle airlift fermenter. The biomass yield from substrate is 0.41 g/g, KS is 0.7 mg/l, and the maximum specific growth rate is 0.44 1/h. The medium contains 4% (w/v) methanol. A substrate conversion of 98% is desirable. The reactor may be operated in either batch or continuous mode. If operated in batch, an inoculum of 0.01% (w/v) is used and the downtime between batches is 20 h. If continuous operations are used at steady state, a downtime of 25 days is expected per year. Neglecting maintenance requirements, compare the annual biomass production achieved using batch and continuous reactors.

The Baroque period gave rise to 2 new large scale vocal genres which many consider to be polar reflections of each other: Opera (based on a mythological or historical story) and Oratorio (based on a sacred story or scripture text). We will be discussing these at the beginning of class on Thursday and I'll want you to weigh in on the similarities and differences of each genre.

Watch these excerpts and try to determine what kinds of things the two genres have in common and what things are different. Consider setting, topic, musical aspects such as texture, instrumentation, and voice types as well as other performing considerations such as acting, costumes, dancing, use of musical scores or not, performance locations, etc...

Opera Ensemble or Chorus

https://www.youtube.com/watch?v=Tf16_lGs7Ss

Oratorio Ensemble or Chorus

https://www.youtube.com/watch?v=IUZEtVbJT5c

A proton starts on a plate with potential of 5.0 x 10^3 V at y=0m. It then enters a region in which there is magnetic field of 2.0 T pointing out of the page. In a field it travels a semicircular path.

a) what is the radius of the semicircle

b)where (what value of y) doed the proton leave the magnetic field?

c) the proton now passes between a second set of plates with a potential difference of 5 x 10^3 V. What is its velocity after passing through these plates?

d) The proton now enters another region in which there is a magnetic field of 2.0 T pointing out of the page, and it again describes a semicircular path. What is the radius of the semicircle

e) where (what value of y) does the proton emerge from the field now?

A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For each statement below, select True or False.

With the capacitor connected to the battery, increasing d decreases Q.
After being disconnected from the battery, inserting a dielectric with κ will increase V.
After being disconnected from the battery, inserting a dielectric with κ will increase C.
With the capacitor connected to the battery, inserting a dielectric with κ will decrease U.
With the capacitor connected to the battery, increasing d increases U.
After being disconnected from the battery, decreasing d increases C.

answers that have been wrong: FTTFTT, FFTFTT, TFTFTT, TFTFTF

The C function funsum below takes three arguments -- an integer val and two function pointers to functions f and g, respectively. f and g both take an integer argument and return an integer result. The function funsum applies f to val, applies g to val, and returns the sum of the two results. Translate to RISC-V following RISC-V register conventions. Note that you do not know, nor do you need to know, what f and g do, nor do you know what registers f and g use.

long long int funsum(long long int val, long long int (*f) (long long int), long long int (*g) (long long int))

{

return(f(val) + g(val));

}

Using the provided dictionary, develop an encryption algorithm that will convert a user-entered string into an encrypted string. Print the user inputted text and the corresponding encrypted text.

cipher = {"A": "T", "B": "D", "C": "L","D": "O", "E": "F","F": "A", \ "G": "G","H": "J", "I": "K", "J": "R", "K": "I","L": "C", "M": "V", \ "N": "P", "O": "W","P": "U", "Q": "X", "R": "Y", "S": "B","T": "E", \ "U": "Z", "V": "Q", "W": "S","X": "N", "Y": "M", "Z": "H"}

b) Create a corresponding decryption algorithm that utilizes the same dictionary. Print the user inputted encryption text and the corresponding decrypted text.

could I recieve help on this python problem thanks!

The C function funsum below takes three arguments -- an integer val and two function pointers to functions f and g, respectively. f and g both take an integer argument and return an integer result. The function funsum applies f to val, applies g to val, and returns the sum of the two results. Translate to RISC-V following RISC-V register conventions. Note that you do not know, nor do you need to know, what f and g do, nor do you know what registers f and g use.

long long int funsum(long long int val, long long int (*f) (long long int), long long int (*g) (long long int))

{

return(f(val) + g(val));

}