If a temperature scale were bassed on the freezing point (5.5 degrees Celsius) and boiling point (80.1 degrees Celsius) of benzene, and the temperature difference between these two points was divided into 50 units called degrees X, what would be the freezing and boiling points of water in degrees X?

The Caribbean needs sustainable development.What is the extent to which it is feasible for the Caribbean to practice sustainable tourism?

What are the three main steps used for the recognition of egg, which contributes as a barrier to cross-species fertilization in sea urchin.

In addition to the molecular orbital treatment of H2, the ground state can be treated by the so-called valence bond (Heitler-London) approach, where individual covalent bonds are combined to form an antisymmetric wave function with spins up and down. Look up this approach and compare the results with the simple MO treatment in terms of bond energy (kJ/mol) and bond distance (pm).

Vector subtraction is the addition of a vector in the opposite direction. For Cases A, B, and C, what would be the result of ⃗R=⃗A−⃗B . You may compute the answer by analytical methods, but show your work as well as the answer.

CASE A: Vector A: 2.94N at 20 degrees Vector B: 1.96N at 110 degrees.

CASE B: Vector A: 1.96N at 20 degrees Vector B: 1.71N at 65 degrees
CASE C: Vector A: 1.96N at 20 degrees Vector B: 1.96N at 290 degrees

Common-Sized Income Statement

Revenue and expense data for the current calendar year for Tannenhill Company and for the electronics industry are as follows. Tannenhill’s data are expressed in dollars. The electronics industry averages are expressed in percentages.

a. Prepare a common-sized income statement comparing the results of operations for Tannenhill Company with the industry average. If required, round percentages to one decimal place. Enter all amounts as positive numbers.

b. The company is managing the cost of manufacturing product   than the industry, and has slightly   selling and administrative expenses relative to the industry. The combined impact causes net income as a percent of sales to be   than the industry average.

1. Low interest rates, at the zero lower bounds, are testing the limits of the conventional IS-LM model. Briefly explain what the lower zero bound means and what it would imply for the shape of the LM curve. Why would monetary policy be ineffective in this environment?

A 75 mL sample of water was placed in a 300 mL BOD bottle, and dilution water was added to fill the bottle. The initial DO concentration was 8.28 mg/L. The DO reading after 5 days was 4.56 mg/L and after 8 days was 3.59 mg/L.

Determine the reaction constant (k) - a trial-and-error solution needed Determine BODu

Part 1: Spectrometer

Please follow the instructions to construct a refractometer and answer the corresponding questions.

The instructions below describe how to build a spectrometer. Here is a link if you wish to view the site where the instrcutions are from.  Spectroscope

How to make a spectroscope

What we will need:

A CD or DVD that can be sacrificed to this project. We won't damage it, but getting it back will involve destroying our spectroscope. Old software CDROMs work great, and some can be had for free from internet service providers like AOL.

A cardboard box. An 8 inch cube works fine, but any size that can hold a CD or DVD disk will do.

Two single edged razor blades. These can be found in paint or hardware stores.

A small cardboard tube, the kind used as a core to wrap paper on.

Some cellophane tape.

Some aluminum tape (found in hardware stores), or some aluminum foil and glue.

Our spectroscope has three main parts. There is a slit made from two razor blades, a diffraction grating made from a CD disk, and a viewing port, made from a paper tube.

To make sure that all three parts are lined up properly, we will use the CD disk as a measuring device, and mark the spots where the slit and the viewing port will go.

Set the CD disk on top of the box, about a half inch from the left edge, and close to the box's bottom, as shown in the photo. Use a pen to trace the circle inside the CD disk onto the box. This mark shows us where the paper tube will go.

Now place the paper tube on the box, centered over the circle we just drew. Draw another circle on the box by tracing the outline of the paper tube.

Move the paper tube over a little bit. A half-inch is probably fine -- in the photo I placed it much farther to the right than necessary, but the aluminum tape covered up the mistake nicely. Trace another circle around the paper tube. These circles will tell us where to cut the box.

Now cut an oval out of the box with a sharp knife. The oval will allow the paper tube to enter the box at an angle.

The next step is to make the slit. Turn the box one quarter turn so the oval we just cut is to the right. Using the CD disk again, draw another small circle close to the left side of the box.

The slit will be on the far left of the box. Cut a small rectangle out of the box at the height marked by the small circle we made with the CD disk. The rectangle should be about a half inch wide, and two inches high.

Carefully unwrap the two razor blades, and set them over the rectangular hole. Make their sharp edges almost touch. Tape the razor blades to the box, being careful to leave a gap between the sharp edges that is nice and even, and not wider at the top or bottom.

Next, set the box right-side-up, with the slit towards you. Now tape the CD disk onto the back wall of the box. The rainbow side should face you, with the printed side touching the cardboard. The photo shows the disk a little too far to the left. The left edge of the disk should be the same distance from the left of the box as the slit is.

Now seal up any places on the box where light might leak in. Use the aluminum tape for this. You can also use aluminum foil for this purpose if you don't have any aluminum tape.

The last step is to use the aluminum tape to attach the paper tube. The aluminum tape will make a light-tight seal around the tube. To make sure the angle is correct, hold the slit up to a light, and look through the paper tube, adjusting it until you can see the full spectrum from red to purple.

Once you have assembled your spectrometer with the instructions in the lecture and above, use it to examine the spectra of three different light sources. Make sure that at least one of them is the sun or moon, but the others can be incandescent lights, compact fluorescent bulbs, LED lights, halogen or xenon bulbs, televisions, computer screens, candles, fireplaces, etc.

Then, answer the following questions in a separate document:

Describe the differences in appearance among the three spectra.

What feature of the light source do the spectra represent? In other words, what is it that you are actually analyzing?

Why do you think spectrometers are so valuable for studying celestial objects?

Part 2: Estimating the Number of Visible Stars in the Night Sky

For this, you will need an empty toilet roll and a clear, dark night. Before you start, jot down the number of stars that you think you can see in the night sky.

Aim your toilet roll at a part of the sky well above the horizon to avoid any haze pollution. Hold your roll steady and allow your eyes to get used to the light for a few seconds. Count the number of stars that you can see within through the roll. Do this four more times in other parts of the sky, and average the five counts.

The viewing diameter of a toilet roll is about 1/135th of the entire sky, at least for a relatively flat area. Mountains, buildings or large trees will obscure some of the sky. To determine the number of visible stars, multiply your average by 135.

Answer the following questions:

4. How similar is this to your original estimation?

5. What percentage of our galaxy do you think that we can see with the naked eye from Earth?

Part 3: Solar System

Please answer the following questions:

6. What percentage of our galaxy do you think that we can see with the naked eye from Earth?

7. Why do you think that the inner planets are relatively close together, but the outer planets are spaced so widely apart?

8. Why do you think that the gaseous planets are gaseous, but the inner planets are not?

• five different eukaryotic species
• For each species:
  • Discuss how to identify the organism. This includes how you could identify it in a lab, or defining visible characteristics.  (2/2, 2/2, 2/2, 2/2, 2/2 points).
    • Consider a physical description (how many legs, type of skeleton, what does it look like, what color is it, what type of hyphae, etc)
  • Describe a clinical disease this organism is responsible for, and some signs and symptoms of such disease, as well as prevention and treatment.
  • Discuss some epidemiological statistics of the disease, or specific economic impact
    • Remember, these must include actual numbers and facts
  • Discuss an organism that could mimic this one, and how can you tell the difference between the two?

An exhausted bicyclist pedals somewhat erratically when exercising on a static bicycle. The angular velocity of the wheels follows the equation ω(t)=at−bsin(ct)fort≥0, where t represents time (measured in seconds), a = 0.500 rad/s2 , b = 0.250 rad/s and c = 2.00 rad/s .

Part A

There is a spot of paint on the front wheel of the bicycle. Take the position of the spot at time t=0 to be at angle θ=0 radians with respect to an axis parallel to the ground (and perpendicular to the axis of rotation of the tire) and measure positive angles in the direction of the wheel's rotation. What angular displacement θ has the spot of paint undergone between time 0 and 2 seconds?

Part B

Express the angular displacement undergone by the spot of paint at t=2 seconds in degrees. Remember to use the unrounded value from Part A, should you need it.

Express your answer in degrees using three significant figures.

Part C

What distance d has the spot of paint moved in 2 seconds if the radius of the wheel is 50 centimeters?

Part D

Which one of the following statements describes the motion of the spot of paint at t=2.0 seconds?

Which one of the following statements describes the motion of the spot of paint at  seconds?

What role does culture play on managers in global situations. For example, a US firm in Saudi Arabia, Indonesia, Singapore or Germany would all face different problems from a cultural perspective. What about a foreign venture into North America.

What are some of the key skills required to be an effective manager at a Camp Bow Wow franchise? 200 word min