# naomi

Popular questions and responses by naomi
1. ## Chemistry

What is the total molar concentration of all the ions in 0.0200 M solutions of the following salts in water? 0.0200 M KCl 0.0200 M CuSO4 0.0200 M CaCl2

2. ## Statistics

A certain organization recommends the use of passwords with the following​ format: consonant comma consonant, consonant comma vowel comma consonant comma vowel comma consonant comma number comma number consonant, vowel, consonant, vowel, consonant,

4. ## Chemistry

7. 2Sr + O2  2SrO a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent 8. 2Cs + Br2  2CsBr a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent

5. ## Chemistry

an 83.0 kg athlete running a "4-minute mile" (i.e. 4.00 min/mile) ________nm an electron (me = 9.10939 × 10–28 g) moving at 3.90 × 106 m/s in an electron microscope ______nm

6. ## Math

A rectangular pizza, 40 cm by 60 cm, is cut into 24 square pieces. Two round pizzas, each cut into 12 slices, also give 24 pieces. So that the pizzas are the same size, what must be the diameter of the round pizzas?

7. ## Physics

Two spherical objects are separated by a distance of 2.97 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As

8. ## physics

At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 291 N/C. At a distance r2 from the charge, the field has a magnitude of 165 N/C. Find the ratio r2/r1. I divided 165/291 and got .567

9. ## Math

If the area of parallelogram ABCD = 246 mm2 and h = 20.5 mm, what is the length of the base of triangle ABD? A.12 mm** B.24 mm C.123 mm D.There is not enough information given.

10. ## physics

A person walks 25m west and then 45m at an angle of 60 degrees north of east. What is the magnitude of the total displacement?

11. ## Chemistry

Lactic acid, a chemical responsible for muscle fatigue, is a monoprotic acid. When 0.578 g of lactic acid is titrated with 0.206 M NaOH, a volume of 31.11 mL of NaOH is used. What is the molar mass of lactic acid? HA + NaOH > NaA + H2O (also does the A

13. ## Physics

A microscope is focused on a mark on a table. When the mark is calculated by a glass plate of 3.00cm thick,the microscope has to be raised 1.1cm from the mark to be once more in focus.calculate the refractive index of the glass.

14. ## mATH

1. Compare using , or =. -15 and -21 A < (MY ANSWER) B > C. = 2. Which nuumber is greater than -24? A -42 B-27 C -16 (MY ANSWER) D -30 3. Which set of integers is ordered from greatest to least. A -13, 4, 0, -8 B -5, -2, 3, 1 C -12, -8, -4, 7 (MY ANSWER) D

15. ## physics

When point charges q1 = +8.9 μC and q2 = +7.6 μC are brought near each other, each experiences a repulsive force of magnitude 0.10 N. Determine the distance between the charges. I got 6.08 m

16. ## FINAN & QUANTITATIVE LITERACY

Your current cell phone company charges \$30 per month for unlimited minutes. Another company charges \$20 per month for the first 500 minutes plus 5¢ a minute for any additional minutes. Should you keep your current service or switch to the other company?

17. ## math

a group of people pays \$720 for admission tickets to an amusement park the price of an adult ticket is \$15, and a child ticket is \$8. there are 25 more adults than children. how many children are in the group?

18. ## trig

Suppose the tangent of an acute angle in a right triangle is less than 1. How does the side opposite the angle compare to the side adjacent to the angle?

19. ## Program design

Input the following: Salesperson number Gender (F or M) Department number (1 or 2) Sales amount Basic salary Write the pseudocode to calculate how much a salesperson earns when his/her commission and basic salary are combined. If a salesperson sells above

20. ## Math

A basketball has a surface area of 1810 in^2 and a baseball has a surface area of 6 in^2. What is the diameter of a baseball if the diameter of a basketball is 9.5 in^2.

21. ## Calculus

Use cylindrical shells to find the volume formed by rotating the region in the first quadrant enclosed by: y=1.2-1.4|x-12| and y=0 about the y-axis

22. ## urgent help!

ASAP help please. Choose one destination that is represented by a flag. Write a paragraph about the effects of climate change in that destination. I do not know what to choose for this just give me ideas plz.

23. ## Social Studies

The decades around the year 50 B.C. saw the end of the Roman Republic and the rise of the Roman Empire. What factors led to the decline of the Roman Republic? Do you think there was any way for the republic to be preserved? What are the disadvantages of an

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

25. ## Math

Demarcus drew a pair of complementary angles. He drew one angle that had a measure of 48 degrees. What was the measure of the other angle he drew? A. 42 degrees** B. 48 degrees C. 132 degrees D. 138 degrees

26. ## math

a mother wants to invest 5000 for her sons future education. She invests a portion of the money in a bank certificate of deposit which earns 4% and the remainder in a savings bond that earns 7%. If the total interest earned after one year is \$300.00,how

27. ## Physics 2

four identical charges (q = +3µC) are arranged in a form of a rectangle. what are the magnitude and direction of the net electric force on the charge in the lower right corner attributable to the other three charges? distances are in meters.

28. ## Chemistry

If 1.5g of CaO is mixed with 2.5M HNO3 how many moles of CaO were reacted and what type of reaction is this ?

29. ## Science

Both carbon dioxide and water are pure substances. How are they similar to each other? A.) both substances have a set ratio of atoms that cannot be separated by physical means. B.) both substances have a set ratio of atoms that can be separated by physical

30. ## Math

a flower was 1.6 meters high one week ago in 7 days it grew 11 centimeters find the current height of the flower 12.3 m, 1.71 m, 125 cm or 11.2 cm , i did times tables and got 17.6 and then i tried deviding but got a weird long number that wasn't on the

31. ## math

a tank and a pail contain a total of 5,136 milliliters of water. jacob pours 314 milliliters of waster from the pail into the tank. the amount of water in the tank is now 7 times what is left in the pail. how much water was in the pail at first?

32. ## Chemistry

Arsenic acid has the formula H^3AsO^4. It is a triprotic acid. Abottle is marked 0.422 N arsenic acid. What is the Molarity of this solution?

the perspective on rosa parks, the bus driver, or another passenger (black,or white} i have to create possible titles, and important points to include in the essay.

34. ## social studies

can you see if i have good grammar,usage, mechanics and spelling Job description: use various types of equipment, develop, secure, and packages. Physical evidence for scientific evaluation and comparison, prepares detailed reports on the observation and

can you help me thank you: 2.Detecting bias is one of the major keys to effective critical thinking and reading. True or False, I believe True 3.Deductively valid arguments can guarantee their conclusions. True or False, I believe it is false 4.A fallacy

36. ## physics

A disgruntled physics student,frustrated with finals,releases his tensions by bombarding the adjacent building,17.7 m away with water balloons. He fires one at 38 degrees from the horizontal with an initial speed of 27.1 m/s. The acceleration of gravity is

37. ## Geography

You need to open a new clothing factory to keep up with the demand for your clothing in the United States. You have looked into building the factory in Trinidad and Tobago. Would your factory likely be able to find enough workers? Explain your answer.

38. ## algebra2

the basketball team has played 21 games. the ratio of win to loses is 5:2. how many games has the team won?

39. ## world history

what was the religion in eastafrica(ethiopa, kenya)during the time peridos 8000bce-600ce

40. ## physics

if a bean of mass 2.0 g jumps 1.0 cm from your hand into the air, how much potential energy has it gained in reaching its highest point? What is its speed as the bean lands back in the palm of your hand?

41. ## english

We are doing a project that claims that children are "invisible" to society. What could be done to make them visible?

42. ## psychology

what is muller lyer

43. ## Math

how do I write the sum of a number times 2 and 20 is greater than 24 as a inequality?

44. ## math

Find the first four terms of the sequence whose general term is given by:(a)5n+(1÷2)n_2,(b)2n+1÷3n+2

45. ## Physics

A horizontal pipe carries oil whose coefficient of viscosity is 0.700 N·s/m2. The diameter of the pipe is 46.0 cm and its length is 51 km. (a) What pressure difference is required between the ends of this pipe if the oil is to flow with an average speed

46. ## Physics

please help keep getting these wrong (a) What is the escape speed on a spherical asteroid whose radius is 515 km and whose gravitational acceleration at the surface is 2.7 m/s2? 3.0147E9 Incorrect: Your answer is incorrect. m/s (b) How far from the surface

47. ## Physics

A sphere of radius 30cm, temperature 23.0°C and emissivity 0.62 is located in an environment of temperature 58.0°C. At what rate does the sphere emit and absorb thermal radiation and what's the sphere net rate of energy exchange?

48. ## Calculus

QA: “The Softmax/Hockey Stick question”: Functions with these shapes are useful in applications where something had been roughly constant but then starts growing linearly, or vice versa, or has some other piecewise-linear behavior. Examples include the

49. ## Physics

A 275 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40 (a) Calculate the force exerted by the man. N (b) Calculate the

51. ## math

which of the following has the greatest value? 5/8 65% 52% 4/7 27% 79% 7/8

52. ## math

which of the following is greater than 1/2? A. 4/10 B. 2/5 C. 6/7 D. 8/15 E. 9/19

53. ## Chemistry

25cm cubes of potassium hydroxide was prepared by dissolving 11.2grams of potassium hydroxide in 250cm cubes of distilled water, was found to exactly neutralize 20cm cubes of a certain hydrochloric acid solution . Find the molarity of the acid in moles/dm

54. ## Chemistry

What volume of 0.5molar nitric acid is needed to neutralize 30cm cubes of 0.8molar sodium carbonate?

55. ## Chemistry

A solution was prepared by dissolving 72.0 g of glucose in 300.0 g of water. The ressulting solution was found to have a boiling point of 100.68C at 1 atm. Calculate the molar mass of glucose. For water Kb= 0.51 Ckg/mol. I know the molar mass of glucose if

56. ## Chemistry

Calcium chloride contains calcium and chloride ions. Write the ground-state electron configuration for the calcium ion.

57. ## Chemistry

1.If a solution absorbed violet light, what color would the solution appear to be? ________________ Calculate the concentration of a solution prepared by adding 15.00 mL of 2.00×10^−3 M KMnO4 from a buret into a 50.00 mL volumetric flask, which is then

58. ## Chemistry

10. Write out the precipitation reaction formulas: NaOH(aq)+MgCl2(aq)> a. Complete ionic reaction: b. Net ionic reaction: c. Molecular reaction: *Please could some explain step by step why and how you solve this problem I do not understand at all . Thanks

59. ## Chemistry

14. Using the equation of q = nCΔT determine the amount of energy required to raise the temperature of 24g of water 80ᵒC, with a heat capacity of 75.3 J/(mol*ᵒC )

60. ## chemistry

The material Magnesium Sulfate What mass of dry material would be needed to make an aqueous solution with a molality of 4 moles/kg solution ? What mass of water is needed? 4 (24.305+ 32.065+ (4 x 15.999)) =481.5 ?Not sure where to go from here or if the

61. ## Cultural Anthro

Contemporary anthropologists: 1 study global conflict to better understand effective conflict resolution solutions. 2 never would work to promote effective peace-keeping solutions because of their aversion to social interference. 3 only study foraging and

62. ## Text study

Who were slaves free

63. ## science

A uniform force of 30N acts on a mass 2.5kg initially at rest for 5seconds then it withdrawn and a retarding force F now acted on the mass in the direction of the motion to reduce its velocity to 12 m/s.( calculate the momentum of mass before the retarding

64. ## Math

Given that I take a piece of paper and cut it in half and then in half again. If the paper originally had an area of 187/2 in^2.What is the area of my new paper?

65. ## math

Naomi was at her house.She saw a tree.How tall is it?

66. ## Calculus

Use cylindrical shells to find the volume formed by rotating the region in the first quadrant enclosed by: y=1.2-1.4|x-12| and y=0 about the y-axis

67. ## Calculus

Use washers to find the volume formed by rotating the region enclosed by: y=1.4−2|x−13| and y=0 about the y-axis

68. ## Science

Can someone send me a link to what global warming is? Thanks

69. ## Calculus

At the scene of an accident, there are skid marks which are 200 feet long showing where a car put on the brakes. The driver swears that he was obeying the speed limit. If we assume that the car braked with a constant deceleration of 16ft/sec^2. We can

70. ## math

if you know the radius of a circle how can you find its diameter?

71. ## number base help plz

plz solve for me too hard show step payuto 123_(base4) = N_(base8 )

72. ## maths equation too hard

x^3=3^x plz help me what is the solution yes i know x=3 but how?

73. ## maths equation too hard

x^3=3^x what is x plz show step

74. ## set maths

In a survey of cars,it was found DAT 75% were old,65% were small nd 50% had been involved in an accident.8% were accident free large old cars,20% were accident free small new cars, 7% were accident free small old cars,6% were new small cars which had an

75. ## sequence help plz

5+11+17+23 +... Find the sum of the 2n term of the series plz help me show step

76. ## Chemistry

Say there is a diluted solution and we need to find the final concentration of it, using the equation M1V1 = M2V2. Does this method change, if the compound (concentration that we're trying to find), is in a solution that has already reacted with another

77. ## Math

if you were to sketch a cirlce graph for the data shown in the table below, what fraction of the circle would represent food? Expense Activities= \$600 Food= \$450 Souvenirs= %270 Show answer in fraction please!

78. ## physics

A car starts from rest is uniformly accelerated at 0.1m/s square untill it reaches a speed of 15m/sec square. It travels at this speed for 3mins and it returns uniformly retarded so as it come to rest 8mins after starting.plot the velocity time graph of

79. ## physics

A particle is projected with a speed of 39.2m/sec at an elevation of 30degrees.find its greatest height.

80. ## ELA

Which of the following passages from the text best illustrates Phillips ability to adapt to his blindness? A. I tried to make my eyes cut through the darkness. B. After a moment of silence, I heard the sizzle of the water as Timothy doused the torch. C. I

81. ## algebra

Show Work Use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=x^5-x^4+4x^3-4x^2-20x+18 [1.5,1.8]

82. ## Chemistry

A solution is made by dissolving 32g KCIO3 in 100g H20 at 80C. The solution is cooled to 10C. Describe what you would observe as it cooled and state what temperature this first occurs at. What mass of crystals would settle out of the solution?

83. ## Geometry

Krista was vacationing in the jungle and wanted to ride a zip line. The platform was 173ft above the ground. The angle of elevation of the zip line was 40 degrees from the ground. Approx. How long was her ride down the zip line?

84. ## FINAN & QUANTITATIVE LITERACY

You currently drive 288 miles per week in a car that gets 24 miles per gallon of gas. You are considering buying a new fuel-efficient car for \$15,000 (after trade-in on your current car) that gets 48 miles per gallon. Insurance premiums for the new and old

86. ## Math 141

A pair of fair 6-sided dice is rolled. What is the probability that a 3 is rolled if it is known that the sum of the numbers landing uppermost is less than or equal to 7? (Enter your answer as an exact fraction.)

87. ## geography,business ,consumer studies,maths litracy

what can I do with this subjects.what job options are available for me to study in university

88. ## Math

How can I insert 4 arithmetic means between √2 and 12/√2? How do I incorporate fractions and roots into sequences?

89. ## Math

The 6th term of an arithmetic sequence is 3 times the 2nd term. Prove that the 10th term is twice the 5th term. tn=t1+(n-1)d

90. ## American History

In Jefferson's view, George Washington's action in addressing the Whiskey Rebellion

91. ## Physics

A car, moving along a straight stretch of highway, begins to accelerate at 0.0442 m/s^2. It takes the car 30.8 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s. I tried converting 30.8 km/sec to m/s then

92. ## Physics

If the time (up and down) the ball remains in the air is 2.14 s, find its speed when it caught. The acceleration of gravity is 9.8 m/s^2 . Neglect air resistance. Answer in units of m/s If the time the ball remains in the air is 2.27 s, find the maximum

93. ## Science for ms. Sue

If you were to walk towards a Van der Graaf generator, the effect of its electric field would get weaker as you got closer to it. A.True B.False I think it is A

94. ## math

What are the 4 concecutive even integers such that the squar of the second term is equal to the product of the first and last term

95. ## How long will it take the investment to double?

\$3,600 is invested in an account at an annual interest rate of 4.8% compounded continuously. How long, to the nearest tenth of a year, will it take the investment to double in size?? Any help would be appreciated.

96. ## math

order from least to greater 4 1 over 2, 19 over 4, 37 over 8, 4 3 over 16

97. ## Math HELP

a flower was 1.6 meters high one week ago in 7 days it grew 11 centimeters find the current height of the flower 12.3 m, 1.71 m, 125 cm or 11.2 cm , i did times tables and got 17.6 and then i tried deviding but got a weird long number that wasn't on the

If I got a 92 on my mid term then got a 50 on a worksheet the following day then what would be my average

99. ## Accointing , Economics and Life Science

I was wanting to find out that with the subjects l got what type of career could l have