Description of Zimbardo experiment and findings?

(A) A plug-in transformer supplies 9.00 V to a video game system. How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 381 turns? What is its input current when its output is 1.33 A?

(B)What is the characteristic time constant of a 24.2 mH inductor that has a resistance of 4.08 Ω? If it is connected to a 12.0 V battery, what is the current after 12.5 ms?

(C)Two protons are released from rest, one from location 1 and another from location 2. When these two protons reach location 3, the first proton has a speed that is 4 times the speed of the second proton. If the electric potentials at locations 1 and 2 are 231 V and 115 V, respectively, what is the electric potential at location 3?

(D)Two microwave frequencies are authorized for use in microwave ovens: 910 and 2590 MHz. Calculate the wavelength of each.

Laptop computers are charged using laptop chargers (adapters) which are connected to 240 V supply and uses 1.5 A to provide 19 V to a computer. Describe in detail, how does adapter convert at 240 V supply to 19 V as output? Does this laptop adapter belong to step up or step down? Justify. What will be the output current if its efficiency is 96% ? The adapter uses low voltages like 240 V, 50 Hz whereas transmission lines operate at very high voltages. How it can be achieved? Inside the computer, A 50 Ω resistor and 100 μF capacitor are connected in series to a 50 Hz source. What will be the maximum voltage in the circuit if r.m.s current in the circuit is 0.3 A? Can you show that the sum of rms voltage across resistor and that across capacitor is more than rms voltage across entire circuit? Compare the phase angle for the above circuit with that for a circuit containing only capacitor.

Matt Peters wishes to evaluate the risk and return behaviors associated with various combinations of assets V and W under three assumed degrees of correlation: Perfectly positive, uncorrelated, and perfectly negative. The expected returns and standard deviations calculated for each of the assets are shown in the following table:

Asset V: Expected Return: 8% Risk: 5%

Asset W: Expected Return: 13% Risk: 10%

a. If the returns of assets V and W are perfectly positively correlated(coefficient =+1), describe the range of (1) expected return and (2) risk associated with all possible portfolio combinations

b. If the returns of assets V and W are uncorrelated (coefficient =0), describe the range of (1) expected return and (2) risk associated with all possible portfolio combinations

c. If the returns of assets V and W are perfectly negatively correlated(coefficient =-1), describe the range of (1) expected return and (2) risk associated with all possible portfolio combinations

In Drosophila, the mutant genes ct (cut wings), y (yellow body), and v (vermillion eye color) are all X-linked. Females heterozygous for all three genes were mated with homozygous recessive males. The male progeny from the cross are given below. As is conventional with Drosophila, the wild-type allele of each gene is designated by a + sign.

ct         y          v                      4

ct         y          +                      93

ct         +          v                      54

ct         +          +                      349

+          y          v                      331

+          y          +                      66

+          +          v                      97

+          +          +                      6

Determine the allele arrangement in the heterozygous parents.

Determine the gene order of these three linked genes.

Construct a linkage map showing the map distances between the three genes.

Calculate interference.

a. Determine the allele arrangement in the heterozygous parents. b. Determine the gene order of these three linked genes. c. Construct a linkage map showing the map distances between the three genes. d. Calculate interference.

A random variable (RV), x is distributed with a pdf as follows:

f_X(x) = [C × x × (1 – x)]       0 ≤ x ≤ a            (C and a are constants)

         = 0                                otherwise

Hence, determine the following: (i) C; (ii) cumulative probability of x in the range, [(u × a) ≤ x ≤ (v × a)]; where u and v are fractions; (iii) E[x]; (iv) second moment of x ; and, (v) standard deviation of x. Assume: a = 1, u = 0.5 and v = 0.75

Hence, choose the correct set of answers in the multiple-choices listed:

Multiple-choices on the answer-set

Essay. Write these in essay format, that will allow me to better assign partial credit.

Meselson and Stahl conducted an experiment on DNA replication. Describe the experiment in your own words. What was their question (5 pts)? What were their methods (10 pts)? What were the results (6 pts)? What did they conclude (5 pts)?

1. A famous scientist, Mendel, conducted a genetic experiment with peas. On sample from this experiment consisted of 428 green peas and 152 yellow peas (There are no other colors)

a. how many peas are there altogether

b. calculate a 95% confidence interval for the percentage of yellow peas. write your answer in english

c. find the margin of error

The Meselson-Stahl experiment proved that DNA undergoes semiconservative replication in E.coli.

a. Explain conservative, semiconservative and dispersive replication. Also, if A new strain of Alien bacteria has just been discovered. Their genetic material is very similar to DNA, however it undergoes dispersive replication. What would be observed in the Meselson-Stahl experiment with the Alien DNA?