# Questions Asked onMarch 5, 2016

1. ## Chemistry

When perturbing the equilibrium with heating and cooling, how many times do you think the equilibrium can be shifted before it stops working? Why? How about modification of the equilibrium through changes in concentration?

2. ## English

I want some of you to come up here and talk about your/their worries to your classmates. The other students should give some tips on the problems/worries/matters. Then they/you should add the expression "Everything will be okay." After that the student who

3. ## calculus

a) Let f(z) = z^2 and γ(t) = 1 + it^3, t ∈ [0,1]. i) Write out the contour integral ∫γ f(z)dz as an integral with respect to t. You do not need to evaluate this integral. ii) Evaluate the integral ∫0,1+i z^2dz iii) What is the relationship between

4. ## algebra or algebra1

What is the set of all values of x for which the expression x + 6 /x2 −2x−8 is not deﬁned? A) {−6,−4,2} B) {−6,−2,4} C) {−4,2} D) {−2,4} E) {−6}

5. ## algebra or algebra1

A rectangle has length 21 inches and width 16 inches. What is the length of a diagonal from one corner to the opposite corner, rounded to the nearest inch

6. ## algebra or algebra1

If f (x) = 2x + 9, and f(a) = 7, then a =?

7. ## Physics

A 55.3 kg skier is moving at 14.9 m/s on a frictionless horizontal, snow covered plateau when she encounters a rough patch 1.7 m long. The coefficient of kinetic friction between this patch and her skis is 0.27. After crossing the rough patch, what is the

8. ## Physics

A soccer ball of mass 550g is at rest on the ground. The soccer ball is kicked with a force of 108N. The player shoes is in contact with the ball for 0.3m. What is KE of the ball? What is the ball's velocity at the moment it loses contact with the soccer

9. ## Physics

An elastic cord can be stretched to its elastic limit by a load of 2N. If a 35cm length of the cord is extende 0.6cm by a force of the cord when the stretching force is 2.5N

10. ## algebra or algebra1

x−8/7=y-t/5 solve for x

11. ## Science

What is the charge on 500 mg of electron?

12. ## chemistry

In the red cabbage lab, we just took the cabbage juice and in 5 separate cups mixed it with 5 different liquids, ex: coke, milk, cleaning agent, etc, and matched the color to a ph chart to tell if it was a base or an acid. Simple lab. The question needs a

13. ## algebra or algebra1

If x and y are positive numbers, then (20)(x^3y^4)^3

14. ## algebra or algebra1

If x and y are positive numbers, then√20(x^3y^4)^3

15. ## physics

calculate the de-broglie wvelenth of the electron orbitting in the n=2 of hydrogen atom

16. ## parabola

Architechture A modern building has an entry in the shape 24.2.ft wide at the base. Find an equation for the parabola case (see the figure) if the vertex is put at the origin of the coordinate sytem. Height is 32.5 ft.

17. ## English

I¡¯m worried about my height. 1. Why don¡¯t you buy a jump rope and jump rope from time to time? 2. Why don¡¯t you play basketball with others in the gym? 3. Why don¡¯t you do gymnastics on a regular basis? 4. Why don¡¯t you do yoga at home? 5.

18. ## chemistry

Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calculate the mass of calcium oxide formed when 2.0 grams of CaCO3 is decomposed.

19. ## trigonometry

A plane flew 50 km on a bearing 63° 20', and then flew on a bearing of 153°20' for 120 km. Find the distance between the starting and ending point.

20. ## Algebra

find the 12th term of the arithmetic progression 1/2, 1/6, 1/10

21. ## Algebra

The first and second term of a progression are "a" and "b" respectively. What is the third term if the progression is harmonic?

22. ## Allgebra

The geometric and arithmetic mean of the two numbers are 8 and 17 respectively. 1. Find the bigger number. 2. Find the smaller number. 3. Find the harmonic mean.

23. ## chemistry12

Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calulate the mass of clacium oxide formed when 2.0 grams of CaCO3 is decomposed.

24. ## chemistry12_2016

Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calulate the mass of clacium oxide formed when 2.0 grams of CaCO3 is decomposed.

25. ## Math

If a pie was cut into sixths and one cut into eighths how many pieces are there altogether?

26. ## vrije universiteit

Harley Davidson has its engine assembly plant in Milwaukee and its motorcycle assembly plant in Pennsylvania. Engines are transported between the two plants using trucks. Each truck trip costs \$1,800. The motorcycle plant assembles and sells 3200

27. ## maths

Q- Two samples of sizes 8 and 10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probability that the variance of the first sample is more than twice the variance of the second sample.

28. ## English

My shoes are the same as yours. ================ What is the part of speech of 'same' in the sentence? Is 'same' an adjective or an pronoun?

29. ## english

provide the correct singular /plural form of the verbs in brackets in the below . sandra (do).......not believe in the new year resolution.she (think) ......we (need)....... new day resolution instead .sandraa (have).....had many failed attempts to live up

30. ## Life orientation

3 corses or study fields you are interested in following after grade 12

31. ## Math

Two numbers are in the ratio of 3 to 4. If the smaller number is increased by 10 and the bigger number is decreased by 10, the results are equal. Find the numbers?

32. ## MATH

The moon's distance from the earth is 360000 km and its diameter subtends an angle of 31 minute at the of the observer on the earth . Find the radius of the moon.

33. ## maths

Akalya bought two pumpkins. the larger was 3 kg. the smaller pumpkin was only one-third the weight of the larger pumpkin. what is the weight of the smaller pumpkin

34. ## college algebra

there are three consecutive even integers such that twice the first is 20 more than the second. find the largest integer

35. ## Physics

If the sky diver releases her chute and an upward force of 800 Newtons is developed due to wind resistance, what will be the net force acting on her?

36. ## English

1. I don't know anyone in my class. 2. In my class, I don't know anyone. ============================= In #1, what is the part of speech of 'in my class'? Does 'in my class' modify 'anyone' or 'know'? In #2, 'In my class' is an adverbial phrase, right?

7x+5x+10x=

38. ## trigonometry

verify sinx/secx = 1/tanx+cotx

39. ## english

Stereotyping is a three-part procedure. In the first stage, we identify a group to which we believe another person belongs. For example, if a man is wearing a turban, one might assume he is a Muslim. In the next stage, we recall a generalization other

40. ## math

A jet A is flying above 2 ships B and C which are 18km apart. If the angles of depression of B and C from are 60 and 32 degrees respectively, find the height of the jet above the sea level, correct to the nearest m.

41. ## maths

useful websites for maths that are free.by the way im doing gsce soon

42. ## LA

1. It shall flash through doing ages, 2.It shall light the distant years; 3.And eyes now dim with sorrow 4. Shall be brighter through their tears 5. It shall flush the mountain ranges, 6. And the valleys shall grow bright; 7. It shall battle the hills in

43. ## Math

22.6 is an outlier for which of the following sets of data? A. 22.6, 21.5, 23.7, 22.6, 28.9, 22.6, 20.9 B. 2.4, 5.3, 3.5, 22.6, 1.8, 2.1, 4.6, 1.9 C. 20.5, 20.8, 21.6, 22.6, 23.7, 24.5, 25.1 D. 13.6, 31.7, 25.8, 22.6, 18.9, 21.6, 30.5

44. ## science

Calculate the wavelength of a wave of frequency 40 MHz propagating in a medium Speed of light-(3*10to the power 5. )

45. ## Maxima, Stationary Points

Long shot but does anyone have experience of using Maxima (maths program) for finding stationary points. My user guide offers no help, ive tried to manipulate the following derivative to find the stationary points however its not proving helpful.

46. ## Functions, graphs

f(x)=(x+1)/(1+x^2) a) explain why the graph lies above the x axis on the interval x=0 and x=sqrt(3) b)write an expression using the indefinite integral that gives the area between the graph f and the x axis between the values x=0 and x=sqrt(3). c)use

47. ## physics

Force charges +q,-q,+q,-q placed at 4 corners of a square of sides 'a' calculate the resultant force on +Q charge at the intersection of 2 diagonals

48. ## good mornin i need some help on Texas history

1.until 1954,all jurors in texas were male t or f ***i thing is f**** 2.after brown v. board of education all texas schools immediately complied t or f **i don't know this one at least help me understand thnks*** plz help me on num two and check num 1

49. ## science-math

A pharmacist has an 18% alcohol solution. How much of this solution and how much water must be mixed together to make 10 liters of a 12% alcohol solution?

50. ## math

A confectioner has 300 pounds of a chocolate that is 1 part cocoa butter to 7 parts caramel. How much chocolate that is 1 part cocoa butter to 15 parts caramel should be combined with the first in order to create a new chocolate that is 1 part cocoa butter

51. ## Math

Factor the expression 5x^2 + 26x + 5 express in factored form.

4.1.Describe the factors that Darren &Anathi should be considering when choosing their form of ownership?4.2. Dareen&Anathi cannot decide between a partnership & private company as the best form ownership.discuss how division of profit ,liability&taxation

53. ## Mathematics

The co-ordinates of point A and B are (2,3) and (4,-3) respectively,find the length of AB

54. ## science

How can we measure the Gravitational field intensity of any place on earth ?

55. ## LA

which of the following sentences includes a predicate noun? A. Justin and Meg are the winners of the contest B. the winners of the contest are they C. the winners of the contest are Justin and Meg D. the winners of the contest are excited. i think D?

56. ## LA

which sentences has a proper subject verb agreement? A. Grandma and Aunt Louise gets you a present. B. Grandma and Aunt Louise bought you a present. C. Grandma and Aunt Louise buys you a present. D. Grandma and Aunt Louise getting you a present. i think B

57. ## Algebra

Did I get the right answer for this problem as an Integer or Decimal? 5.75 - (-7.84)= 13.59

58. ## History

Describe the functions of the three different branches of the United States government. In your description, be sure to identify the purpose of each branch and provide examples of how each branch can check the power of the other two branches of government.

59. ## maths

A contractor supplied some items to a school. The contractor's bill is shown below. If each amount includes 5% VAT calculate how much the government receives as VAT. Electrical fittings = #52 500.

60. ## LA

whats 15/18 like there is 18 questions and you got three wrong what percent is it.

61. ## maths

A contractor supplied some items to a school. The contractor's bill is shown below. If each amount includes 5% VAT calculate how much the government receives as VAT. Electrical fittings = #52 500.Stationery #84 000 ;sports equipments #262 000;computers

62. ## Math

in a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many

63. ## TX history

10.a committee may take all of the following actions Except -passing a bill into law -recommending a bill for further consideration -not recommending the bill******* -listening to testimony about a bill 5.the leader of the house of representatives is the?

64. ## math

Juan will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of \$57.98 and costs an additional \$0.09 per mile driven. The second plan has an initial fee of \$49.98 and costs an additional \$0.14 per mile driven. How

65. ## Statistics

TRUE or FALSE: The p-value of a hypothesis test is the probability that the null hypothesisis true given the sample statistic obtained.

66. ## Math

Short answer The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic in one day. Compare the ages of the patients of doctor 1 and doctor 2 using the mean and the median of each data set. Doctor 1 Doctor 2

67. ## Statistics

he level of nitrogen oxides (NOX) in the exhaust of a particular car model varies with mean 0.7 grams per mile and standard deviation 0.19 grams per mile . (a) What sample size is needed so that the standard deviation of the sampling distribution is 0.01

68. ## History

Did France intended to export its revolution to the other countries?

I have a loan made april 5th, face value 8500 length 90 days, simple interest 8%, discount May 3. what is the discount?

70. ## Climate Physics

Find the insolation in Wm^-2 at summer solstice for a low obliquity of 22 degrees? I used the following: h_0=cos^-1(-tan(phi)* tan(delta)) cos(theta)=[sin(phi)*sin(delta)+cos(phi)*cos(delta)*cos(h_0)] Result was 397 Wm^-2 This looked like an easy problem,

71. ## math

verify for sqrt(1-cosx)= sin/sqrt(1+cosx). I multiplied the right side by sqrt(1-cosx) and got sqrt(1-cosx)= sin*sqrt(1-cosx), but I don't know what to do with the sin.

72. ## math

A pair of shoes that normally costs \$75 is on sale for \$55. What is the percent decrease in the price, to the nearest whole percent? THANK YOU!

73. ## English

Which one of the following sentences contains an incorrect usage of the singular possessive?     A. Icarus's fate was sealed when he approached the sun.B. The north forty has always been my family's land.C. Mary was dominant among Jesus'

74. ## Algebra

Using the equation, y=-2/3x-2, find the equation of the line that is parallel and has the ordered pair (3,3). Write the answer in standard form.

75. ## math

A farmer is using a random sample to predict the number of broken eggs in a shipment of 3,000 eggs. Using a calculator, the farmer generates the following random numbers. The numbers 1-250 represent broken eggs. 477, 2116, 1044, 81, 619, 755, 2704, 900,

76. ## Math

Michele wanted to measure the height of her school’s flagpole. She placed a mirror on the ground 48 feet from the flagpole, then walked backwards until she was able to see the top of the pole in the mirror. Her eyes were 5 feet above the ground and she

78. ## Calc Derivatives

Find the critical points of (4x-3)/(3x^(1/2))

79. ## math help pls pls

The correlation coefficient for poor health and not exercising in a group of people is 0.67. Analyze the following statement: Poor health is caused by not exercising. Is this a reasonable conclusion? Yes; everyone who doesn't exercise is by definition

80. ## math

3 girls share a number of apples in the ratio 5:3:2. if the highest share is 40 apples, find the smallest share

81. ## math help pls pls

Analyze the following statement: Marcus notices that he runs faster in the mornings rather than the evenings. Is the statement an example of correlation or causation? Correlation, because time of day doesn't cause a person to run faster or slower

82. ## math

Please I just cant figure out how to get the discount, thank you I have a loan made april 5th, face value 8500 length 90 days, simple interest 8%, discount May 3. what is the discount?I have the answer just cant figure out how to get it

83. ## math help pls pls

You suspect that the spiciness of food served in a restaurant is positively correlated with number of soft drinks ordered. You have gathered several observations of people ordering food of different spice-levels and the number of soft drinks they ordered.

84. ## Physics

Does the total kinetic energy of an isolated system necessarily have to be conserved when its total momentum is conserved?

85. ## Math

Six friends share 4 apples equally. How much Apple does each friend get?

Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid \$1,261 interest on \$52,600 at 5%. What was the time, using exact interest?

87. ## Math

Sally painted a picture that has an area of 480 square inches. The length of the painting is 1 1/5 its width. Which of the following could be the dimensions of Sally’s painting? A. 20 inches by 24 inches B. 12 inches by 40 inches C. 16 inches by 30

88. ## Social Studies

What is Obama's last name?

89. ## Math

A taxpayer is in the 28 percent tax bracket and invests it in a San Diego City Bond paying 7 percent. What taxable interest rate will provide the after-tax return? I don't understand the formula, so can you show me how it's calculated,please.

90. ## Geometry

I have a rectangle MNOP ~ rectangle STUV. What is the length of line TU?? First rectangle is MNOP with 10 on top and 4 on the side. Second rectangle is STUV. With the top marked X for the unknown number and n the side is 6. I need help solving this. Do you

91. ## math

Mike had a jar of nickels that had five more nickels than he originally thought. If the total amount of nickels was \$4.35, how many nickels did Mike think he had originally?

92. ## ANALYTICAL CHEMISTRY

A sample weighing 1.25 mg containing a certain compound M (FW 292.16 g/mol) was dissolved in solvent in a 5.00 mL volumetric flask. A 1.00 mL aliquot was drawn up, placed in a 10.00 mL volumetric and diluted to the mark with solvent. The absorbance of this

93. ## Algebra

One skier covered the distance of 20 km 20 minutes faster than the other skier. Find the speed of both skiers if one of them is travelling 2 km/hour faster than the other one.

94. ## math

What is the largest integer n that 4n+1 is a multiple of n+1?

95. ## math

What is the largest integer n such that 1440/(n^2-1) is an integer?

96. ## Algebra

sqrt(8-3x)+sqrt(6x-1)=7-(2*(sqrt(9x-24)))

97. ## Math

Bank A pays 4.79% compounded monthly, while Bank B pays 4.8% compounded quarterly. Which bank pays more?

98. ## Math

A seed company claims that 90% of its bean seeds will germinate. If seven of these seeds are planted in warm, moist, soil, what is the probability that exactly 6 of them will germinate? Round answer to nearest ten-thousandth (4 places after decimal)

99. ## Calculus

Integrate dx/(sqrt(x^2+16)). I have no idea how to start and which method to use. Thinking some sort of trig substitution? But it doesn't look like it. Step by step? Answer key says ln|x+ sqrt(x^2+16)|.

100. ## physics

At 20°C, a brass cube has an edge length of 34 cm. What is the increase in the cube's surface area when it is heated from 20°C to 67°C?

101. ## 6th Grade Math - Ms. Sue plz

What is the formula for the area of a trapezoid? Thanks.

102. ## political science

According to Justice William O. Douglas, where can zones of privacy (the right to privacy) be found in the Constitution? A. throughout the Constitution B. in the penumbras of the Bill of Rights C. in the First Amendment D. in the writings of the Founders

103. ## political science

Which of the following conditions was NOT a part of the Lemon Test, as established by the Supreme Court? A. They must not entangle the government exclusively with religion B. The primary effect must not be to advance or inhibit religion C. There must be a

104. ## political science

The former Soviet Union cannot be considered a democracy because A. it did not regularly hold elections B. it permitted no acts of conventional participation C. it had no legislature D. there was only one political party

105. ## History

A Story that contains little or no policy content and is not related to the days event but that commonly discussed popular personalities and is designed to draw greater viewer interest is what? I think is biased media coverage

106. ## College history

Social order and norms of behavior are often learned in what era or school time? I think it's either college or adulthood

107. ## physics

What is the final equilibrium temperature when 40.0 grams of ice at 0°C is mixed with 5.00 grams of steam at 120°C? The specific heat of ice is 2.10 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the specific heat of water 4.186 kJ/kg °C,

108. ## Physics

An Alaskan rescue plane traveling 38 m/s drops a package of emergency rations from a height of 105 m to a stranded party of explorers. The acceleration of gravity is 9.8 m/s2. Where does the package strike the ground relative to the point directly below

109. ## math

how many envelopes can be made out of a sheet of paper 3m 24cm by 1m 72cm,if each envelope requires a piece of paper of side 18cm by 12cm?

110. ## Calculus Derivatives

Determine the concavity of f(x)=xlnx I end up with F''(x)=1/x, where it would be concave up when x>0 and concave down when x

111. ## College history

The former Soviet Union cannot be considered a democracy because Of what? I have info on it already I just want someone else's option and thoughts on it so I can add it to my essay

112. ## political science

The Lilly Ledbetter Fair Pay Act was passed by President Obama in 2007 in order to address what issue?

113. ## Biology

How do ATP and ADP function in capturing and releasing energy?

114. ## math

find two numbers such that one of them is five times the other and their difference is 132.

115. ## Social science

The Second Amendment continues to be a controversial issue. One of the main questions is whether it was meant as a _______ freedom or _______ freedom. Question 4 options: individual; group absolute; conditional temporary; permanent good; bad

116. ## Social science

According to Justice William O. Douglas, where can zones of privacy (the right to privacy) be found in the Constitution? Question 2 options: throughout the Constitution in the penumbras of the Bill of Rights in the First Amendment in the writings of the

117. ## Electronics

Is a circuit a bandpass filter only when it's a high pass filter followed by a low pass filter? Or can it ever be a low pass filter and then a high pass filter (cascaded together)? Does the order matter if it's then followed by a gain/amplifier stage?

I wonder if someone can help me on question please , Analyse the impact of relevant legislation/regulations on any two types of part time &full time employment contract ?

119. ## geography, history, life science and maths literacy

what courses can I do at university( NWU )

120. ## Maths

if the radius of a sphere is increased by 10%, prove that its volume will be increased by33.1%.

121. ## Chemisrty

Assuming equal concentrations, rank these solutions by pH: hclo4 caoh2 NH3 koh hbro

122. ## math

Here is bob's test score math 65 arts 86 science 84 social studies 78 if his average score is 80 ,how many marks did he make in gramma

123. ## chemistry

Dr Bob, Thanks for your help. Ihad googled for 3 hours before asking you. For future reference, if anyone asks this question again, 10th grade chemistry, I found a video on You Tube that makes it easy to understand. It is, The Sci Guys, Ph indicator,