There's a fine line between white-hat and gray-hat hackers and between gray-hats and black-hats. For instance, some experts consider gray-hat hackers an essential part of securing the Internet because they often expose vulnerabilities before they're discovered by the security community. Research the "definitions" of each of these types of hackers and answer the following questions.

1. What is hacking?
2. At what point does hacking become illegal?
3. Give a specific, real-world example of when good was done by any form of hacking?
4. Give a specific, real-world example of when harm was done by any form of hacking?
5. Provide three (3) ways to protect yourself and your computing devices from hackers.

1)Lets do a simple bayesian calculation.

60% of frogs are female, the rest male.

All male frogs sing, but only 10% of female frogs sing.

You hear a frog singing.

What is the posterior probability that this singing frog is male?

(hint! The probability of any frog singing is the probability  of a singing female (.6 x .1) plus that of a singing male (.4 x 1))

1)23%

2)35%

3)75%

4)87%

2)Which is the most complicated model for molecular sequence evolution?  

1)Jukes Cantor

2)F81

3)HKY

4)GTR

3)You run modeltest on your data and determine that you do not have equal frequencies of bases, but you don't see any evidence that transversions are any more or less common than translations. Which model should you use?

1)JC

2)F81

3)HKY

4)GTR

4)The support values on trees generated via bayesian methods convey:

1)How likely that clade is

2)What proportion of trees that are likely to come from the provided data contain the clade in question

3)How many substitions are found in the sequences between two taxa

4)The quality of the analysis

For a particular redox reaction, ClO−2 is oxidized to ClO−4 and Fe3+ is reduced to Fe2+. Complete and balance the equation for this reaction in basic solution. Phases are optional.

Step by step please

A columnist for Forbes argues, "Even if China is always better than Spain at producing textiles, if the best thing that Spain could be doing is textiles, then that's what Spain should be doing".

a. What does the columnist mean by "China is always better than Spain" in the production of textiles (which include clothing, sheets, and similar products)? Was the columnist arguing that China has an absolute advantage over Spain in producing textiles, a comparative advantage, or both? Briefly explain with full sentences.

b. The columnist noted that, in fact, Spain exports significant quantities of textiles. If this description of the situation in China and Spain is accurate, briefly explain how Spanish firms are able to export textiles in competition with Chinese firms.

please explain thank you

A 5.00 kg block is moving at 3.00 m/s along a frictionless table and collides with a 2.00 kg block that is initially at rest. The two blocks stick together and then slide up a 20.0 ◦ frictionless inclined plane. What is the maximum distance the two blocks slide up the incline?

Offer an example of a strategic commitment you know of or that you believe would be beneficial to a firm in an industry. Explain why the commitment is irreversible, understandable and credible and give an indication of the position (tough or soft) it forces the firm into. Your discussion should make it clear why this move would be beneficial to the firm. Alternatively, your example may be of a strategic move that backfired. In this case, you should similarly describe the actions that constituted the commitment and explain why the commitment failed.

The Stellar Inc., a manufacturer of low-sugar, low-sodium, low-cholesterol TV dinners, would like to increase its market share in the Sunbelt. In order to do so, Stellar has decided to locate a new factory in the Panama City area. Stellar will either buy or lease a site depending upon which is more advantageous. The site location committee has narrowed down the available sites to the following three very similar buildings that will meet their needs.

Building A: Purchase for a cash price of $618,100, useful life 26 years.

Building B: Lease for 26 years with annual lease payments of $70,340 being made at the beginning of the year.

Building C: Purchase for $653,200 cash. This building is larger than needed; however, the excess space can be sublet for 26 years at a net annual rental of $6,540. Rental payments will be received at the end of each year. The Stellar Inc. has no aversion to being a landlord.

Click here to view factor tables

In which building would you recommend that The Stellar Inc. locate, assuming a 12% cost of funds? (Round factor values to 5 decimal places, e.g. 1.25124 and final answer to 0 decimal places, e.g. 458,581.)

BACK TITRATION OF ASCORBIC ACID

For the standardization, 5 ml of KIO₃ was added, as well as 0.5087 g of solid KI and 2.5 mL of 0.5 M H2SO4. It was titrated with the Na2S2O3 solution previously prepared.

0.01 M KIO3 (+excess KI and acid)           0.07 M Na2S2O3

1- Calculate the ascorbic acid concentration from your manual titration. (HOW TO CALCULATE THE EXCESS IODINE)

IO₃^- + 8I^- + 6H⁺ ?3I ₃^-+ 3H2 O                                

   I₃^- + 2S₂O₃^-2 ? 3I^- +S₄ O₆^-2        

C₆H₈O₆ + I₃^- ? C₆H₆O₇ + 4H⁺ +3I^-

Standardization of Thiosulfate solution

analysis of ascorbic acid

Explain why working and labor conditions are an ethical issue that is currently influencing the international community and what stakeholders are being influenced by this issue and how.

On 26 February, Hong Kong’s Financial Secretary Paul Chan announced that all permanent residents in Hong Kong will receive a HK$10,000 from the HKSAR government. This policy will cost the HKSAR government roughly HK$71 billion and it is aimed at tackling the worse economic downturn that the city has experienced in the last 10 years.

a. Briefly explain why this policy can increase equilibrium output in the short run.

b. An economist argues that if the HKSAR government spends HK$71 billion on goods and services instead of giving each Hong Kong resident a HK$10,000, the policy effect on output would be larger. Briefly discuss the economic rationale behind this economist’s argument.                                              

This is an old classic which I don't think ever got a clear answer. The Gribov-Froissart projection that gives the relativistic version of Regge trajectories treats even angular momentum differently from odd angular momentum. The trajectory functions in general are separate for even and odd angular momentum.

But in QCD, the odd trajectories interpolate the even trajectories in every case--- the two trajectories are degenerate. Is there a way of understanding why the even-odd trajectories are degenerate? Is is a symmetry argument? Can you find a natural system where they are not degenerate?

A quick google search revealed this reference, which doesn't answer the question, but gives an experimental signature for the degeneracy: http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-pub-0576.pdf , There is probably excellent data by now on this.