# Questions Asked onApril 10, 2017

1. ## physics

A 0.5-kg block slides along a horizontal frictionless surface at 2m/s. It is brought to rest by compressing a very long spring of spring constant 800N/m. The maximum spring compression is:

2. ## mat

Two cargo ships are siling a direct course into harbor. Ship A is 22 miles from harbor. Ship B is sailing into harbor on a course perpendicular to that of ship A. If the angle between them is 47 degrees, how far is ship B from the harbor? Round the answer

3. ## physics

A skateboarder at a skate park rides along the path shown in (Figure 1) . a=2.7 m and b=1.0m If the speed of the skateboarder at point A is v=1.6m/s, what is her speed at point B? Assume that friction is negligible.

4. ## Physics

Water flows from a fire truck through a hose that is 11.7 cm in diameter and has a nozzle that is 2.0 cm in diameter. The firemen stand on a hill 5.0 m above the level of the truck. When the water leaves the nozzle, it has a speed of 20.0 m/s. 1) Determine

5. ## Geometry

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side than from the larger side of the rectangle. The perimeter of the rectangle is equal to 56 cm. Find the lengths of the sides of the rectangle.

6. ## Math

A prize machine randomly dispenses small toys. There are 1515 prizes left: 55 bouncy balls, 33 toy cars, 22 stickers, and 55 dinosaurs. Kai gets 22 prizes. What is the probability that they are both toy cars?

7. ## History

Social studies unit 4 lesson 8 test Based on this text which statement best summarizes the reason why progressives supported the idea of holding primaries before general elections?

8. ## American Government

"The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." According to the 10th amendment which powers to the state have? (2 answers) a. The powers

9. ## Physics

What happens to a current-carrying wire that is located in a magnetic field? Does the orientation (angle) of the wire make a difference? Explain.

10. ## algebra

The ordered pairs (1, 81), (2, 100), (3, 121), (4, 144), and (5, 169) represent a function. What is a rule that represents this function?

11. ## Math - Probability

3 letters are typed, with repetition allowed. What is the probability that all 3 will be vowels? Write your answer as a percent. Round to the nearest hundredth of a percent as needed.

12. ## ~Physical Education~

Which of the following is a benefit of texting? a)It is addictive. b)It prevents crime. c)It allows citizens to submit anonymous tips to the police. d)You can text mean comments anonymously. Thank you to anyone who helps me out! It is much appreciated!

13. ## Trig

Find all solutions of the equation in the interval [0,2pi) 2 cos^2 x-cos x = 0 -2cos^2 + cosx + 0 (x+1/2) (x+0/2) (2x+1) (x+0) -1/2,0 2Pi/3, 4pi/3, pi/2, 3pi/2 my teacher circled pi/2 and 3pi/2 What did I do wrong? I don't understand...

14. ## Physics

A charge of -17 nC is on the X axis at the origin. A charge of -24 nC is on the X axis at 11 cm. Find the electric field (magnitude and direction) at 19 cm on the X axis. I believe to solve this problem, the equation E = kC (q1/r1^2) must be used for each

15. ## chemistry

2KCLO3+heat makes 2KCL+3O2 is it endothermic or exothermic

16. ## Basic Numeracy and statistics (math)

A rocket is shot into the air with an initial velocity of 800m/sec. The equation h = -16t2+144t models the height of the ball. how long does it take for the rocket to hit the ground (h=0)?

17. ## math

In a rhombus ABCD, m∠A = 31°. Point O is a point of intersection of diagonals. Find the measures of the angles of triangle ΔBOC. I got 15.5 degrees for angle OCB and thats right all I need is the angles for OBC and BOC

18. ## Science

An automobile starting from rest at t0 = 0 at x0 = 0 undergoes constant acceleration in a straight line. It is observed to pass two marks separated by 64 m, the first at t = 8s and the second at t = 12s. What is the value of the acceleration?

19. ## American Government

The media is often called the fourth branch of government in what ways can it check the other branches? (2 answers) a. It can vote to impeach the president b. It can investigate areas of legislative concern c. It can share information with the public about

20. ## science

If you had a real thermometer that was accurate, how could you modify your experimental thermometer to read actual temperatures?

21. ## stat

One of the questions on a survey of 1,000 adults asked if today's children will be better off than their parents (Rasmussen Reports website, October 26, 2012). Representative data are shown in the WEBfile named ChildOutlook. A response of Yes indicates

22. ## Maths IX

The mass of a solid sphere of metal 5cm in diameter is 6.25 kg. Find the mass of a spherical shell of same metal, the external diameter being 10cm and thickness 1 cm.

23. ## Math

A car used 8 gallons of gas to travel 340 miles a mechanic fixed the car. Then it used 7 gallons of gas to travel 350 miles. Gas cost \$4.00 per gallon. How much less to the nearest cent per mile did it cost to run the car after mechanic fixed it

24. ## physics

a gun fires a 3g bullet with a speed of 400m/s. the gun barrel is 20cm long. how much energy is given to the bullet?

25. ## MATH HELP PLS

19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir

26. ## algebra

The sum of the three numbers in Arithmetic Progression is 33. If the numbers are increased by 2, 1, and 6 respectively the new numbers will be in Geometric progression. Find these numbers.

27. ## Data

a) Calculate the probability distribution for getting doubles within the first seven rolls of a pair of standard dice. b) Use these probabilities to estimate the expected number of rolls before getting doubles. How accurate is this estimate? How do I

28. ## english

please help In Shirley Jackson's "The Lottery" how does the author use Tessie's late arrival to help create suspense? A. the reader knows that tessie is joining a crowd for an important event. B. the reader can infer that the children are excited to see

Which statement best describes the effects of the American revolution on women? A. the political rights of women were reduced B. women had to take on many responsibilities C. many women were forced to serve in the army D. the declaration of independence

49+51

31. ## math

use integer values of x from-3 to 3 to graph the equation y=2x^2=3 can you tell me the coordinates, then i can graph it, i just dont understand how to get them. thanks.

32. ## Math

A zoo measured the height, in feet, of 9 giraffes. 18, 16, 22, 14, 17, 19, 15, 19, 22 What is the median height of the giraffes? 16 ft 17 ft 18 ft 19 ft I think it is 17 ft.

33. ## Physics

A step-up transformer has 500 turns on its primary and 1000 turns on its secondary. When the primary is connected to 100 V and the secondary is connected to a floodlight that draws 4 A, what is the power output?

34. ## Geography

The purpose of political maps. What information do they contain? What is able to be gleaned from studying political maps? Would like a straight up answer or some sources, thank you.

35. ## Algebra

Consider the line =y+76x2 . Find the equation of the line that is parallel to this line and passes through the point , −7 4 . Find the equation of the line that is perpendicular to this line and passes through the point , −7 4 .

36. ## Math

Cosmic ray bombardment of the atmosphere produces neutrons, which in turn react w/ nitrogen to produce radioactive carbon-14. Radioactive carbon-14 enters all living tissue through carbon dioxide. As long as it is alive, carbon-14 is maintained in the

37. ## College Algebra

Let f(x) = . Find a formula for a function g whose graph is obtained from f by the given sequence of transformations. (1) shift left 3 units (2) vertical stretch by a factor of 2 (3) reflect across the x-axis

38. ## Social studies

Many people in middle America are poor farmers or A. Mestizos***** B. Campesinos C. Maquiladoras D. Riveras

39. ## math

what amount was borrowed for which the amount of interest is \$ 200 at the rate of 5% for 4 years.

40. ## Chemistry

Which type of polyethylene has no side chains? A) LLDPE*** B) HDPE

41. ## English

1. He will go to Chicago. 2. He is going to go to Chicago. 3. He shall go to Chicago. 4. I will make him go to Chicago. ---------------------- Does #1 mean #2? Does #3 mean #4?

42. ## English

1. The door won't open. 2. She won't open the door. (Does 'won't' mean 'volition' of the subject? Or does each sentence have a simple future tense?) 3. She will open the door. 3-1. She intends to open the door. 3-2. She is going to open the door. (Does #3

43. ## geometry

The bisector of one of the angles of a rectangle also bisects a side of the rectangle. Find the perimeter of the rectangle if you know that the smaller side of the rectangle is equal to 10 cm. I need the perimeter in cm please

44. ## english

each rhyme is made up of one possessive noun and one plural noun. Write the answer to each riddle

45. ## English

Which quote from "The Lottery" best illustrates the theme that good people can do bad things when conforming to a group's social expectations? A. a sudden hush fell on the crowd as Mr.summers cleared his throat and looked and at the list. B. although the

46. ## Physics

Compute the entropy change of a system consisting of 1kg of ice at 0•C which melts (reversibly) to water at the same temperature. The latent heat of melting is 79.6 Cal/g

47. ## Math

Order the fractions from least to greatest 2/3 5/8 1/8 3/4

48. ## Health and physcal ed.

kidney stones can be very painful. what prevention methods could you used to keep from developing them? A)Drink a lot of milk wich is full of calcium. B)Drink plenty of water, wich flushes out your system. c)eat plenty of pretien rich foods like fish

asked by Health and Physical ed
49. ## Physics

A nuclear plant on a submarine produces steam at 350C to drive a steam electric turbine. the temperature on the low side of the turbine is 27C. how much energy is dissipated as waste heat

50. ## Physics

Determine the percentage error. So we found that aluminium has a specific heat capacity of 18441J/KgC And I know that the percentage error = mv-av/av x 100% But how do we know the actual value of aluminium? My teacher never gave it to us. And when it says

51. ## Math

If you roll a six-sided die times, how many possible outcomes are there?

52. ## accounting

The capital expenditures budget shows that Valley must purchase \$50,000 of equipment on January 1 to establish the new center. Valley will pay for the equipment on January 31. The equipment is expected to have a 8-year useful life and a \$2,000 salvage

53. ## Accounting

Is it wise to manage a company's debts by consultants or by foreigners and why?

54. ## Chemistry

A dye has a λmax = 460 nm (ε = 70,000 L/(mol*cm)). What is the concentration of dye in a sample whose absorbance at 460 nm is A = 0.350 in a cell with a path length of 1.00 cm (4 points) I have no idea how to do this.

55. ## English

I'm struggling in identifying the antagonist in The Large Ant by Howard Fast. I can;t tell if it's the ant as a representation of the unknown or if it's the three men who act as the protagonist's conscience.

56. ## Microeconomics

A. At a product of 55 will this firm produce in the short run? Yes or no explain. If it is preferable to produce what will be the profit maximizing or loss minimizing output? What economic profit or loss will the firm realize per unit of output

57. ## Physics

A proton accelerates through a particle accelerator, with a final speed of 8.0 x 10^6 m/s. It experiences a magnetic field of 3.0T that is produced by steering magnets inside the accelerator. What is the number of the magnetic force pulling on the proton?

58. ## physics

Evelyn wears glasses whose wire frames are shaped like to circles, each with an area of 7.0x10^-4 m^2. The horizontal component of the earths' magnetic field in Evelyn's hometown is 4.9x10^-5 T. If Evelyn turns her head back and forth, rotating it through

59. ## math

Lupe is applying for a summer job. Six employees doing the same work earn \$8.00, \$8.50, \$9.00, \$9.50, \$10.00, and \$21.00 per hour. In the interview, the boss tells Lupe that the average hourly wage is \$11.00. Is the boss's statement misleading? Why or why

60. ## math

the picture shows 12 flowers. there are 6 daisies, one sunflower, and 5 tulips. What fraction of the flowers are daisies?

61. ## Chemistry

A 10 g sample of water at 24 Celsius is mixed with 30.0 g of water at 48 Celsius. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The specific heat of water is 4.18 j/g•C

62. ## American Government

This dynamic also applies to same-sex marriage. The challenged laws burden the liberty of same-sex couples, and they abridge central precepts of equality. The marriage laws at issue are in essence unequal: Same-sex couples are denied benefits afforded

63. ## College Algebra

A goldsmith has two gold alloys. The first alloy is 30% gold; the second alloy is 80% gold. How many grams of each should be mixed to produce 50 grams of an alloy that is 68% gold? amount of 30% gold ______grams amount of 80% gold ______grams

64. ## MATH<<<<<

What are the mean, median, mode and range of the data set given the altitude of lakes in feet: –12, –9, –14, –39, –49, –49, –18, and –43?

65. ## Calc

How do you find the vector equation of of something given a point P with a parallel vecto, V ? You're also given R(0)? Thank you!

66. ## Chemistry

How many liters of CO2 would be collected over water from the bomcustion of 35g of cyclohexane, if the gas is collected at a barometric pressure of 765 torr and a temperature of 303 K?

67. ## Math

a book cover has the length and width (in inches). top 31-b, bottom 2+a+2b,sides 3a - b and 2+a+2b,find the values of a and b? Find the perimeter of the book cover.

68. ## Chemistry

what volume of carbon dioxide is produced when 49.7g of calcium carbonate reacts completely according to the following reaction at 25C and 1atm? 25C=298K R= 8.31441 J K-1 mol-1 101325 x V= 49.7x8.31441x298 V= 49.7x8.31441x298 101325 =1.2153 m3 Please help

69. ## Algebra

Use arrow notation to wrote a rule for this translation. the cornites used to be a= 1,3 b= 4,5 c= 3,1 but then were shifted 1 unit to the right and 2 units down. The aigted coordinates are a= 2,1 b= 5,2 c= 4,-1 I dont understand the rule part.

70. ## physics

What is the difference between a step-up and a step-down transformer? Give examples where each would be used.

71. ## math

shaline cuts out circles of diametre 5/4cm from a strip of dimensions 35/4 by 5/4cm how many full circles can she cut

72. ## physics

The hood ornament of Abe's car is shaped like a ring 0.06m in diameter. Abe is driving toward the west so that the earth's 5.0x10^-5 T field provides no flux through the hood ornament. What is the induced voltage in the metal ring as Abe turns from this

73. ## physics

Dean is hunting in the Northwest Territory at a location where the earth's magnetic field is 8.0x 10^-5 T. He shoots at a duck decoy by mistake, and the rubber bullet he is using acquires a charge of 3.0 x 10 ^ -12 C as it leaves his gun at 300m/s,

74. ## Math

We are learning about linear and exponential growth and simple and compound interest. How do I know if I use .02 if my growth rate is 2% or if I use 1.02? What is the difference if I have the 1 in front? I'm a little confused about that. Thank you.

75. ## Math

Cassie rolled two 1-6 cubes 108 times. How many times should she predict the sum of 5?

76. ## Physics

Evelyn wears glasses whose wire frames are shaped like to circles, each with an area of 8.0x10^-4 m^2. The horizontal component of the earths' magnetic field in Evelyn's hometown is 3.9x10^-5 T. If Evelyn turns her head back and forth, rotating it through

77. ## science

Determine the amount of NaoH dissolved in 250ml of the solution by titrating it against N/10 H2so4 solution

78. ## Physics

A wasp accumulates 1.0x10^-14C of charge while flying perpendicular to the earth's magnetic field of 4.0X10^-5T. How fast is the wasp flying if the magnetic force acting on it is 3.0x 10^-16N?

79. ## physics

The hood ornament of Abe's car is shaped like a ring 0.06m in diameter. Abe is driving toward the west so that the earth's 5.0x10^-5 T field provides no flux through the hood ornament. What is the induced voltage in the metal ring as Abe turns from this

80. ## physics

What is the difference between a step-up and a step-down transformer? Give examples where each would be used.

81. ## physics

A step-up transformer has 40 turns on its primary and 100 turns on its secondary. When the primary is supplied with an alternating current at 140 V, what is the voltage across the secondary?

82. ## math

the average stone on the lowest level of the great pyramids was a rectangular prism 5 feet long by 5 feet high by 6 feet deep and weighed 15 tons. what was the volume of the average stone

83. ## English

A reliable source can it be an editorial or documentary? Confused, because if you can prove they are reliable both could be correct. Any thoughts?

84. ## chemistry

What is the molality of a solution composed of 25ml og toluene C6H5CH3 ( density=0.866g/ml) in 75 ml of benzene ( density=0.879g/ml)

85. ## Math

A zoo measured the wingspan, in millimeters, of 9 butterflies. 55 50 54 57 50 55 53 52 55 What is the median length of the wingspans? 50 mm 54 mm 55 mm 57 mm I think it is 54 mm.

86. ## chemistry

calculate the molality of a solution that has 1.02kg sucrose C12H22O11 dissolved in 554g water?

87. ## Math

Untitled Stem and leaf plot. Vertical line separates each stem number from its first leaf number. First row. Stem 2. Leaves 6, 7, 7. Second row. Stem 3. Leaves 0, 2, 3, 3, 4. Third row. Stem 4. Leaves 0, 5. Key. 3 vertical line 0 means 30. What is the

88. ## Physics

Dean is hunting in the Northwest Territory at a location where the earth's magnetic field is 7.0x 10^-5 T. He shoots at a duck decoy by mistake, and the rubber bullet he is using acquires a charge of 2.0 x 10 ^ -12 C as it leaves his gun at 300m/s,

89. ## Physics

A transformer has 120 V across the 100-turn primary coil and has 5 turns in the secondary coil. If the current in the primary coil is 0.1 A, how much power is dissipated in the secondary coil?

90. ## Science

How do you find the half life of strontium 90? I know that the answer is 28.8 years but how do you arrive at that answer?

91. ## english

I'm working on a research paper for this whole unit in English, the first task is to form research questions. But how do I do that? Is it supposed to be in a MLA format/paragraph type? Do I just list the research questions like I would when I'm doing a

92. ## Word problem

Sophia has 22 coins in her pocket, all of which are nickels and dimes. If the total value of her change is \$1.75, how many nickels and how many dimes does she have? Im lost on how to set up the equations, please help and show me how?

93. ## History

I'm writing an essay based on the question "to what extent did world war 2 shape the identity of Canada" I wrote the introductory paragraph (down below) but I was just wondering if someone could proofread it and let me know if there was anything else I

94. ## AP US History

To what extent did economic factors, national identity, and the federal government maintain continuity and foster change in the lives of African Americans from 1789-1877?

95. ## Math

Can someone please clarify this for me? Create two different situations: one in which you use combinations and one in which you use permutations. Include specific details and an explanation about what makes each situation either a combination or

96. ## Math

Graph the linear equation 5. y = 3x + 3 My answer: D (probably wrong) 6. Find the slope of the line through (-9,-10) and (-2, -5) A: -5/7 B: 7/5 C: 5/7 D: -7/5

97. ## physics pls help

The resilin in the body of a flea has a force constant of about 28 kg, and when the flea cocks its jumping legs, the resilin associated with each leg is stretched by approximately 0.10 mm. Part A Given that the flea has a mass of 0.56 mg, and that two legs

98. ## Math intermediate algebra

The perimeter of a triangle is 33 inches. The sum of the length of the longest side and twice the length of the shortest side is 31 inches. Twice the length of the longest side minus the sum of the lengths of the other sides is 12 inches. Find the lengths

99. ## Ed Tech

Selena needs to publish her research about Chinese culture. Her research includes audio clips from an interview with a Chinese citizen, written notes, and photographs from her tour of a Chinese exhibit in a local museum. Based on each application’s

100. ## Algebraic word problem

Three friends Alex, Ben, and Casey presented a young mathematician with a puzzle. They told him that the sum of their ages add up to 98 years. Double Alex’s age and add to Ben’s gives 84 years. The sum of three times Alex’s age and twice Casey’s

101. ## Science

Which of the following is NOT a characteristic of an animal? Have eukaryotic cells digest their food make their own food******* have many cells with different functions

102. ## chemistry

(b) (i)The e.m.f. of the cell was measured as 0.62 volts. Taking the standard electrode potential of Cu/Cu2+ as = +0.34 volts, calculate the standard potential of the Co/Co2+ system. Be careful to indicate whether your answer is positive or negative. (ii)

103. ## Chemistry 151

Calculate the concentration in g/dm3 of HNO3 in solution A. (H=1; N=14; O=16; Na=23)

104. ## PUBLİC LAW, Political science, ir

You are a Spanish conquistador who just took control of a large territory in Americas in medieval time. Which political concept requires you that you should obey the orders of the Spanish King and not to administrate the land on your own??(this question is

105. ## math

After taking 20% off the original price, Victor paid \$14 for a book. What was the original price of the book? My guess is 16.8 it is not a Q&A it is write your own please help.

106. ## Algebra

b) y = 3(.25)^x growth or decay y-intercept:

107. ## Physics

An ice cube tray of negligible mass contains 375 g of ice at -5.00 C. What minimum amount of heat must be added to make all the ice into water?

108. ## 2017 chemistry practical

the titre I am obtaining in the titration of hydrochloric acid against sodium trioxocarbonate (iv) decahydrate is out of range.(42.40cm3). How should I go about it?

109. ## gin

Please kindly help me which one is coorect below: this represent as note when the customer suppose to print a documents with color image 1. According to the image size 2. defending on the image or color size

110. ## Col. Algebra

I'm needing help with understanding /solving this problem. Can you please help? In triangle ABC, the angle C is six times as large as angle A. The measure of angle B is 20 degree greater that that of angle A. Find the measure of the angles.

111. ## Math *help*

Find each product. 5/6 x 10 A.8 1/3*** B.10 5/6 C.50/60 D.5/60 help please ^_^

112. ## English

1. Don't pull my leg. 2. Don't tease me. 3. Don't kid me. 4. Don't play a trick on me. 5. Don't play tricks/jokes/pranks on me. 6. Don't play a joke on me. 7. Don't play a prank on me. -------------------------- Are they all the same in meaning? From #4 to

113. ## Differential Equation

Verify whether the given equation (y=x^2+4x) is a solution to this given equation [(xdy/dx)=x^2+y]

114. ## math

a plan flying at an altitude of 1000 m begins to climb at a rate of 10 metres per second graph the first 10 seconds of the plane's ascent plot time on the horizontal axis and altitude on the vertical axis

115. ## Maths

In a class, 18 children are girls. A quarter of the children are boys. Altogether, how many children are there in the class?

116. ## Geometry measurements

To make each costume for a play, a seamstress uses 3 yards 10 inches of fabric. How much fabric will she use to make 9 identical costumes?

117. ## English

Identify the compliments in the sentence the newspaper published an article and an editorial about mayor Sharon Pratt Texan

118. ## Physics

An ideal gas at 17•c has a pressure of 760 mmHg and is compressed adiabatically until its volume is halved.Calculate final temperature of the gas assuming Cp= 2100 J/kg/K and Cv=1500J/kg/K. Show working please

119. ## Physics

An ideal gas at 17•c has a pressure of 760 mmHg and is compressed adiabatically until its volume is halved.Calculate final temperature of the gas assuming Cp= 2100 J/kg/K and Cv=1500J/kg/K