farzanyan312

QUESTION 21
An unknown particle is caused to move between two electricaly charged plates, as illustrated below. Its path is deflected by a smaller magnitude in the opposite direction from that beta particle. What is can you conclude about the charge and mass of this unknown particle?

 Classify each number below as an integer or not. 

Integer

    Yes        No

-10.95

    0

Graded Assignment - Semester Assessment, Part 2

Complete this teacher-scored portion of the assessment and submit it to your teacher.

1. A student notices that a group of ivy plants growing in a cool room of a building grow at a different rate than a group of the same kind of ivy growing in a warm room in the same building. The student wants to find out why the two groups of plants grow at different rates. Explain how she could carry out an experiment using all of the steps of a scientific process.

Answer:

2. Describe the role of photosynthetic organisms, such as plants, in converting the energy of light to energy that can be used by all living things including the photosynthesizers themselves. Be sure to follow the flow of energy from the sun to living things.

Answer:

3. A pet store has two guinea pigs. One has white fur and one has black fur. The white guinea pig has two recessive alleles for fur color (bb). The black guinea pig has one dominant allele (B) and one recessive allele (b) for fur color. What will most likely be the phenotypes of the offspring in a cross between the two guinea pigs? Explain your answer.

Answer:

4. Explain the basic parts of a major theme in molecular biology: the pathway of DNA to RNA to proteins. Include a general idea of what occurs at each stage.

Answer:

In one step of the industrial process for producing copper from chalcopyrite (CuFeS2), molten copper(I) sulfide is reduced with a blast of hot air:

a. How many kilograms of   must be reduced to account for the world’s annual copper production of about kg?

b. How many liters of  at 1 bar and 25 °C are produced as a by-product?

c. If all the escaped into the atmosphere and reacted with  to produce sulfuric acid in acid rain, how many kilograms of  would there be in the rain?

Prepare debtors ledger control account and creditors ledger control account 

According to the audited financial statements for previous year accounts receivable and accounts payable 

Help I don’t get how to Solve it

1. Identify the correct statement with reference to human digestive system.

(a) ileum opens into small intestine.

(b) Serosa is the innermost layer of the alimentary canal.

(c) ileum is a highly coiled part.

(d) Vermiform appendix arises from duodenum

• Identify and describe the types of gates
• Describe the various types of sprinklers

What is humanities?

Why study humanities ?

How important is art in my chosen profession?

What kind of artist I am?

How is history divided in terms of art?

Who are the key person or artist in each era?

Define the covalent bond and types of bond?

I need to collect information and to write a full description for the following components related to “Gelatin” topic in skin tissue engineering/ wound healing :

Swelling and degradation properties

Porosity

Scaffold fabrication methods

Advantages and disadvantages

Conclusion

Let Q be an m × m orthogonal matrix. (a) Prove that for any given vectors u and v in R m, the angle between u and v is the same as the angle between Qu and Qv. (b) Prove that IIQII₂ = 1. (c) Give an example 2 × 2 orthogonal matrix Q, such that IIQII does not equal 1 and IIQII_∞ does not equal 1. (d) Prove that IIQAII₂ = IIAII₂, for any m × m matrix A.

Why is a zygote that results from fertilization genetically unique?

I have a math question - 

Determine the average rate of change over the given interval for the given graph.

The vertex is (2, -6) and the roots at the x-axis are (-1, 0)(o,0) and (3,0).

You had tried to answer my question, but asked i I could submit a picture of the graph.

How can I add a picture to my question?

Thank you

Chloroacetic acid has a dissociation constant of ka =0.000138 calculate the degree of dissociation for 0.0825m solution of this acid using the Debye -Huckel limiting law 

35Cl2 (560 cm-1), 39K35Cl (281 cm-1), 1H2 (4401 cm-1). Calculate the force constants for these molecules if treated as harmonic oscillators. 

What is the botany

What is R? Circuits

What is 69+420?

If 61000 pounds of raw materials are needed to meet production in August, how many pounds of raw materials should be purchased in July?

Create a 3 minute baby shower speech to say.

What is 1+1?

A store clerk pushes a row of shopping carts through the parking lot, accelerating them at 1 m/s?. If the carts have a mass of 300 kilograms, how much force did the clerk put on the carts?

Describe the role William Still had on the Underground Railroad. (Harriet Tubman: Conductor on the Underground Railroad, written by Ann Petry)

A 75 kg person in a frictionless environment throws a 5 kg ball with a force of 15 N

What is the acceleration of the ball & the person?

Two students tug - o -war. One pulls with a force of 5 Newtons to the right, one pulls with a force of 7 Newtons to the left. Which way does the rope move?

Two students push a car out of the mud. One pushes with 10 Newtons, the other with 7 Newtons. Will they overcome the friction force of 15 Newtons?

A chemist determined by measurements that

0.0750

moles of calcium participated in a chemical reaction. Calculate the mass of calcium that participated in the chemical reaction.

Round your answer to

3 significant digits.

Four liquids are described in the table below. Use the second column of the table to explain the order of their freezing points, and the third column to explain the order of their boiling points.

For example, select '1' in the second column next to the liquid with the lowest freezing point. Select '2' in the second column next to the liquid with the next higher freezing point, and so on. In the third column, select '1' next to the liquid with the lowest boiling point, '2' next to the liquid with the next higher boiling point, and so on.

Note: the density of water is /1.00gmL .
solution freezing point boiling point 6.5 g of potassium iodide (KI) dissolved in 100. mL of water (choose one) 1(lowest) 2 3 4(highest) (choose one) 1(lowest) 2 3 4(highest) 6.5 g of potassium chloride (KCl) dissolved in 100. mL of water (choose one) 1(lowest) 2 3 4(highest) (choose one) 1(lowest) 2 3 4(highest) 6.5 g of ethylene glycol (C2H6O2) dissolved in 100. mL of water (choose one) 1(lowest) 2 3 4(highest) (choose one) 1(lowest) 2 3 4(highest) 100. mL of pure water

0.120 molmol of liquid bromine, Br2

Average of citric acid per 2-L bottle of soda.

As a part of your savings plan at work, you have been depositing $250 per quarter in a savings account earning 8% interest compounded quarterly for the last 10 years. You will retire in 15 years and want to increase your contribution each year from $1,000 to $2,000 per year, by increasing your contribution every four months from $250 to $500. Additionally, you have just inherited $10,000, which you plan to invest now to earn interest at 12% compounded annually for the next 15 years. How much money will you have in savings when you retire 15 years from now?

1. Were any spin-allowed d-d transitions not measured in your absorption spectra because they fell outside of the measurable range of wavelengths? If so, estimate the wavelength maxima of the missing band(s). It may help to consult the literature when considering whether any non-measured spin-allowed d-d transitions were at lower or higher energy than the measured spectral window.
2. Four coordinate nickel complexes can have another geometry other than tetrahedral. Name that geometry, and explain why the absorption spectrum you took strongly suggests a tetrahedral geometry, as opposed to the other possible option. Hint: Think about the allowedness of transitions in the two geometries.

3. Assign the d-d transitions (using appropriate term symbols) of (Bu4N)2[NiBr4] and [Ni(NH3)6]Br2.

One way of stating Kirchhoff's Voltage Law would be to say that the sum of the volt drops in a series circuit must equal the applied voltage.

A) True B) False

Explain how evidence-based research can eliminate or minimize ethical concerns in the health care industry.

Beginning in the right atrium of the heart, explain the major anatomical structures that a drop of blood passes through before ending up in the aorta. Make sure to include valves, vessels, and heart chambers in your answer.

(3) (a) You want to purchase a new car. You are offered a loan for $16,000 with an annual interest rate of 6% and a 36-month repayment period. Use the average balance method to estimate the total amount you will pay over the 36 months for this $16,000 car loan? Round to the nearest dollar.

Alicia is purchasing groceries. She bought tomatoes: for $2.54, apples for $3.53 and pretzels for $2.49. Which item was the most expensive? Which items was the least expensive?

Suppose that you first titrated 25.0 mL of 0.500 M HCL with 0.500M NaOH and then 25.0 mL of 0.500 M of a weark acid HA with 0.500M NaOH.How would the titration curves compare at 10 or 15 ml of NaOH beyond the equivalence points? Explain.