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write my assignment 5815

1. In order to test the effectiveness of the debate of the candidates for the president, researchers randomly contacted 1000 people on the phone. An attempt was made to contact all 1000 one day before the debate and ask their voting intentions. Only 910 were actually reached by phone; 80 out of the 910 people refused to participate. One day after the debate, 810 of the 910 people were reached and again asked their voting intentions. In addition they were asked if they had seen the debate on television. The before-after change of the viewers and non-viewers were compared to conclude which candidate was more effective in the debate.What kind of experimental design is being used? Describe relevant potential extraneous variables in this experiment. Can this experiment design rule out these extraneous variables?

 

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September 25, 2021by

write my assignment 17424

1.Which of the following pieces of critical information did Watson and Crick use to build and propose their model of the structure of DNA?

          A.   %A always equals %T and %G always equals %C

          B.   x-ray diffraction images that show DNA as a double helix

          C.   an incorrect model that depicts DNA as a triple helix with the phosphate groups on the inside

          D.   x-ray diffraction images that suggest DNA is hydrophilic and elongates upon exposure to water

             All of the answers are correct.

2.          Rosalind Franklin used x-ray diffraction to record how x-rays scatter when bounced off the surface of DNA molecules. Which of the following conclusions about the structure of DNA did her images support?

            A. All of the answers are correct.

             B.The DNA helix was likely made of two strands.

            C. The DNA molecule was uniform in width.

             D.The DNA molecule was hydrophilic and extends upon exposure to water.

             The DNA molecule was likely helical.

3.          Rosalind Franklin did not receive the credit she deserves for her contribution to the discovery of the structure of DNA because _____.

           A.  None of the answers is correct.

           B.  All of the answers are correct.

             C.she died before the Nobel Prize was awarded to Watson, Crick, and Wilkins

            D. her paper was perceived merely as supporting evidence for Watson and Crick’s model.

             at the time, prevailing attitudes were negative toward women in science

 

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September 25, 2021by

write my assignment 3508

On July 1 of year 1, Elaine purchased a new home for $550,000. At the time of the purchase, it was estimated that the property tax bill on the home for the year would be $11,000 ($550,000 × 2%). On the settlement statement, Elaine was charged $5,500 for the year in property taxes and the seller was charged $5,500. On December 31, year 1 Elaine discovered that the real property taxes on the home for the year were actually $12,000. Elaine wrote a $12,000 check to the local government to pay the taxes for that calendar year (Elaine was liable for the taxes because she owned the property when they became due). What amount of real property taxes is Elaine allowed to deduct for year 1? (Assume not married filing separately.)

 

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September 25, 2021by

write my assignment 18755

Consider the information below for Saranac County, your Solid Waste Management Plan outline prepared, and your landfill design. Prepare a MS PowerPoint presentation to a county committee for input and approval to move forward with your proposed plan.

The waste composition for this county follows the standard waste composition except 40% of the resident’s dispose of their food waste in either garbage disposals to the local sewer or backyard composting piles. 30% of recyclables are sent to a local recycling plant.

Once/if the county landfill closes, the next closest landfill is 30 miles away with a $60/ton tipping fee. If permitted, the waste-to-energy incinerator will be 45 miles away with an $85/ton tipping fee. A rough estimate to design, permit and build a landfill expansion is $100M to $200M, with monthly operational fees of $250,000 to $400,000. The expansion would be good for another 25 years of capacity.

Another option is to build a transfer station for trucks to dump locally, and then have larger hauling trucks transport the waste to one of the other close landfills, or maybe a further landfill with cheaper tipping fees. It’s estimated to cost $2.5M to build the transfer station plus 3 full-time people to operate it.

On first glance, your options for solid waste management after the regional landfill closes are:

1.   Permit and build a landfill expansion.

      a.   Just for your county

      b.   Open to outside the county as well

2.   Truck to a landfill 30 miles away

3.   Build a transfer station and truck to the landfill 30 miles away

4.   Support the incinerator and hope that gets permitted

5.   Something else?

Discuss the pros, cons and feasibility of each option and why you are proposing what you are.

 

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September 25, 2021by