# Questions Asked onMarch 13, 2016

1. ## life orientation

explain in short paragraph what can trigger spectator aggression on sport

2. ## Life orientation

Explain fully what is meant by 'Designated subjects'

3. ## chemistry

When aqueous solutions of chromium(III) bromide and potassium phosphate are combined, solid chromium(III) phosphate and a solution of potassium bromide are formed. The net ionic equation for this reaction is:

1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in

5. ## Math

20% of the children in sport club play tennis 25% of the children who play tennis also play rounder there are 8 children in the club who play both tennis and rounder how many children are there in the sport club together?

6. ## Science

How many Btu's are required to change five pounds of ice at 20°F to water at 160°F? a. 2,608 Btu’s b. 1,390 Btu’s c. 1,304 Btu’s d. 141 Btu’s I am trying ((160-20)x.5)x5 but not getting any of the possible choices. What am I missing? Thanks for

7. ## Math

At the​ airport, Person A and Person B are walking at the same speed to catch their​ flight, but Person B decides to step onto the moving​ sidewalk, while Person A continues to walk on the stationary sidewalk. If the sidewalk moves at 1 meter per​

8. ## Life Orientation

Evaluate how each of the following personality types deals with interpersonal conflic: 1.Passive/Introvert 2.Aggressive/Bully 3.Assertive/Extrovert

9. ## math

A map's key shows that every of 5 inches on the map represents 200 miles of actual distance. Suppose the distance between two cities on the map is 7 inches. What is the actual distance between the two cities? Write the rule you used to find the actual

10. ## physics

a ball of mass 0.1kg is thrown vertically upwards with an initial velocity of 80m/s.calculate the potential energy (I) half way up (ii) at its maximum height.what is the kinetic energy as it leaves the ground

11. ## 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 liked both pepperoni and banana peppers on their pizza. If 66 students were surveyed, how many

12. ## Health Sciences

Your body is covered with skin. It helps regulate body temperature, gathers information from the environment, and what other functions? a. protects the body from allergy, infection, and injury b. protects the body from infection, injury, and scars c.

13. ## geometry

Points $F$, $E$, and $D$ are on the sides $\overline{AB}$, $\overline{AC}$, and $\overline{BC}$, respectively, of right $\triangle ABC$ such that $AFDE$ is a square. If $AB = 12$ and $AC = 8$, then what is $AF$?

14. ## MATH

A contractor purchases gravel one cubic yard at a time. (a) A gravel driveway L yards long and 6 yards wide is to be poured to a depth of 1 foot. Find a formula for n(L), the number of cubic yards of gravel the contractor buys, assuming that he buys 12

26. ## ANALYTICAL CHEMISTRY

Explain the following statement: "The validity of a chemical analysis ultimately depends on measuring the response of the analytical procedure to known standards." (b) Calibration curves are necessary in many chemical measurements involving

27. ## chemistry inorganic

Potassium tetraoxalate has the formula H2C2O4.KHC2O4.xH2O. 1.923 g of the above compound was neutralized by 22.7 mL of 1.000 M NaOH using phenolphthalein as the indicator. Calculate the value of x in the formula.

28. ## Physics

You stand on a frictionless platform that is rotating with an angular speed of 3.9 rev/s.Your arms are outstretched, and you hold a heavy weight in each hand. The moment of inertia of you, the extended weights, and the platform is 7 kg · m2. When you pull

29. ## Life orientation

Propose 6 practical actions that you can take to address human rights violations of xenophobia in your community

30. ## home school

In which of the following are 1/2,5/6, and 5/8 arranged in ascending order?

31. ## Physics

The size of Rutherford's atom is about 0.1 nm. (a) Calculate the speed of an electron that moves around a proton, based on their electrostatic attraction, if they are separated by 0.1 nm. (answer in m/s) (b) Calculate the corresponding de Broglie

32. ## science computer

Write a program to read the names and age of 10 people and print the name of the oldest person.assume that there are no person of the same age.data is supplied in the following form:name,age,name,age

33. ## physics

determine the kinetic energy of a boy mass 40kg running with velocity of 3m/s

34. ## maths

The first term of A.P. of 20th terms is 2and its last term is 59 . Find its 6th term from the end .

35. ## scince

Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine. CCl4(g) + 1/2O2(g) COCl2(g) + Cl2(g), Kc = 4.4 × 109 at 1,000 K Calculate Kc for the reaction 2CCl4(g) + O2(g) 2COCl2(g) + 2Cl2(g).

36. ## Maths

A drawer contains 8 brown socks and 4 black socks. A sock is taken a random from the drawer, its colour noted and replaced. This is done three times. If X is the discrete variable, the number of brown socks taken. Draw the probability distribution of X.

37. ## Math

From a sample set of 10 colored balls--5 green, 3 red and 2 yellow-- 5 are chosen at random WITH replacement. What is the probability that the result will be: green, red, yellow, red, green? Write your answer as a four place decimal number. p(G,R,Y,R,G)

38. ## chem12

2HI(g)--H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= -2x H2= x I2=x equilibrium

39. ## physics

a ball of mass 0.1 is thrown up with an initial velocity of 80m/s calculate the potential energy half way up

40. ## Life orientation

Identify three courses or study fields I'm interested in following after grate 12 write them down and in order of preferences provide two reasons of each choice

41. ## physics

When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........

42. ## Trig

I have a diagram of how far a discus was thrown. From A to B is 100m, C is perpendicular to A, from A to C is 50m, A and B are connected to D (it should be a triangle), A has a 40° angle and B has a 75° angle. C is not perpendicular to D btw.. a. Find AD

43. ## PHYCYSCS

Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 79.5 N, Jill pulls with 67.3 N in the northeast direction, and Jane pulls to the southeast with 155 N.

44. ## math

A floor refinishing company charges $1.91 per square foot to strip and refinish a tile floor for up to 1000 square feet. There is an additional charge of$250 for toxic waste disposal for any job which includes more than 150 square feet of tile. (a) Find

45. ## Physics

Two metallic spheres of mass .001 kg hang from a point by .3 m strings. Each is given the same amount and sign of charge. After equilibrium is reached, they each make an angle of 20 degrees relative to the vertical. Determine the amount of charge in each

46. ## Science

chemical equation for sodium hydrogen carbonate and acetic acid (not balanced)

47. ## Chemistry

In a crazy scenario, the Oylan Vinegar Company has 10,000 gallons of vinegar with 0.622% concentration. This vinegar solution cannot be sold because it's too weak, but the plant manager can't bear to discard it. OVC also has a large batch of vinegar that

48. ## Physics

In a double-slit experiment, the fourth-order maximum for wavelength of 450 nm occurs at an angle theta = 90. Thus it is on the verge of being eliminated from the pattern because theta cannot exceed 90. (a) What range of wavelengths in the visible range

49. ## MATH

As dry air moves upward, it expands and in so doing cools at a rate of about 10C for 100m rise, up to about 12 km. a) If the ground temperature is 220, write a formula for the temperature at height x km. Answer: b) What range of temperature can be expected

50. ## math

if an invoice is dated april 25 and has credit terms of 3/15 ,n/45 , what is the last date on which the net amount of the invoice can be paid without incurring an penalty

51. ## Chemistry

We did a titration of calcium hydroxide lab in chemistry, once with and once with edta, we have to calculate the solubility for both, and the ksp, for the hcl I did (concentration)*(Volume of hcl used) then that answer divided by two divided by the amount

52. ## Chemistry

What is the mass of MgCl2 required to make 500mL if 1.200 M of MgCl2 Solution? I'm having trouble figuring out what the equation looks like. I believe the answer is 57.127g but if so i would like to know why. I did (1.200M*.500mL)/1000* mass of MgCl2. How

53. ## math

you deposit $200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to be$221? is 1 year the answer?

54. ## computer science

Write a java program that reads from the user the course code, section and the scores of a student for three exams representing two midterms and a final. The percentage of each of the three exams is of fixed value 30, 30 and 40 percent respectively. Your

55. ## psychology

Because you are bored one afternoon, you decide to try a little experiment. You open your eye very wide, extend your thumb, and then poke yourself in the e ure. Aside from being very foolish and in alot of pain, you may learn something about your eye when

56. ## math

An isosceles triangle has a base of 20 cm. The vertex angle is 82 . Find the length of Each of the two equal sides of the triangle.

57. ## physics

a horizontal spring is stretched from its equilibrium position when a force of 0.75kg acts on it. then a force of 1.5 kg is attached to the end of the end of the spring and pulled 4.5 cm along a frictionless table from the equilibrium position. the body is

58. ## Maths

Distance between two points A and B is 100km. Two cars starts from A and B at the same time and in same direction. They meet after 5hrs,then form a linear equation in two variables which shows the differences of distances covered by both the cars.

59. ## BALANCING EQUATION

NA+NO→NAOH+H2 C4+HSO2→C4SO+SO2+HO

60. ## math

2/5 of a pool was filled with water. after pouring out 5/7 of the amount of water in the pool, 62 liters of water was needed to fill the pool completely. Find the amount of water needed to fill up the empty pool

61. ## Social Studies

Which roles did most women feel during the medieval period? A.monks and nuns B.teachers and scholars C.writers and artist D.wives and mothers** Help Please I picked wives and mothers because women didn't have much rights back then.

62. ## math

The angle of elevation from a boat to the top of a cliff is 42 degrees. When the boat moves 15 feet closer to the cliff, the angle of elevation increases to 54 degrees. How tall is the cliff?

63. ## maths

Ratio between number of sides of two regular polygons is 2:3 and ratio between degree measure of their interior angles is 3:4. Write the name of these polygons.

64. ## Physics

A woman with mass of 57 kg stands at the rim of a horizontal table having a moment of inertia of 570 kg m2 and a radius of 1.5 m.The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then

65. ## math

How to write a real world problem that compares the ratios 5to 9 and 12to 15

66. ## Agricultural Sciences

Determine the size of the pasture by measuring its approximate length and width.One large step is approxinately one metre.

67. ## Physics

If the length of pendulum is 0.8+/-0.01m and time peroid is 2.5+/-0.012 sec. Then percentage error in acceleration due to gravity will be

68. ## Calculus

Using a linear approximation or differentials, approximate:(26.98)^(3/4) thank you for your help!

69. ## Descriptive Physics

You are standing 5 feet from one speaker and 14 feet from another. Both speakers are producing the same sound. If the combined sound from both speakers is especially loud at your location, which of the following could be the wavelength of the sound? Choose

70. ## Math

What equation would I write for this problem. Please help. On Tuesday at noon there were 4 inches of snow on the ground. Then it snowed at a rate of x inches per hour for 7 hours. By Tuesday at 7:00 p.m. there were 25 inches of snow on the ground.

71. ## Science Experiment Help

Just need help answering this one question for my science experiment: "Name another mixture that could be separated like the sugar-water mixture." the sugar-water turned into caramel when I heated it... so what other mixtures do that? Thnx for the help!

72. ## Physics

How much energy is required to ionize hydrogen when it is in the state with n = 6? (answer in eV)

73. ## mathematical literacy

The scale on a map is given as 1:2 000 000.the distance between two towns on the map is 4,3cm?

74. ## Chemistry-DrBob222

I got an answer of -1.34 x 10^3 KJ/mol. A 10.00 mL aliquot of 0.100 M NaOH is added to 15.00 mL of 0.100M HCl in a coffee cup calorimeter. The initial temperature of the two dilute liquids were both 25.0 degrees C and the final temperature of the mixture

75. ## science

When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........

76. ## math lit,geography,life sciences,english,agric sci

Can I qualify if I want to study a nursing course and what are the levels I am expected to get

77. ## Physics

A non-reflecting single layer of a lens coating is to be deposited on a lens of refractive index n = 1.7. Determine the refractive index of a coating material and the thickness required to produce zero reflection for light of wavelength 540 nm.

78. ## Algebra

The length of a rectangular piece of steel in a bridge is 3 meters less than double the width. The perimeter of the piece of steel is 48 meters. Find the length of the steel. Find the width. What steps or formula do I use to solve this problem.

79. ## maths

The first term of A.P. of 20th terms is 2and its last term is 59 . Find its 6th term from the end .

80. ## Chemistry

I need help on this question. Identify the mistakes in the following balanced equations. Rewrite the equation to make it correct. Each question has one mistake to correct. a) C9H20+12O2 -> 9CO2 + 10H2O b) H2+Cl -> 2HCl

81. ## ALGEBRA

DETERMINE WHETHER (6,-2) IS A SOLUTION OF Y=-2/3X

82. ## chemistry

A 1L flask contains 0.2moles of air open to atmosphere at 0degree celcius. Upon heating some of the air is lost. What is the percentage of air remaining in the flask?

83. ## Science

Volume of 12M HCL taken for preparing 1M HCL (100 ml Sol {

84. ## Asthana

tell me structural formula of 2-methyl propane,2methyl propene,propanal

85. ## math

The business opened with a debt of $3400. After 4 years, it accumulated profit of$4900. Find the profit as a function of time t, knowing the profit function is linear. P(t)=

86. ## Chemistry

This is for grade 11 chemistry, balancing equations. Help asap? I'd like to get it done by tonight, if possible. Type of reaction: Predict product in words: Write Balance equation: Heres the question. Aluminum+ Zinc Sulfide =

87. ## geography

what are some settlement patterns in the Sahara desert

88. ## Math

A team of street pavers was assigned the task of paving two parking lots one twice the size of the other. They worked for the first half of the day on the larger parking lot. Then the team split into two groups of equal number. The first group continued

89. ## Economics

Explain discretionary fiscal policy and automatic fiscal policy (automatic stabilizers).

90. ## algebra

solve by elimination method to find an ordered pair. 7x-y=27 x+9y=77

91. ## physics

The threshold wavelength for photoelectric emission in metal is 600 nm.Find the maximum kinetic energy of the electrons emitted when it is exposed to the wavelength 200 nm

92. ## Physics

A 5000-Hz car horn is blasted while the car is moving at 35.0 m/s toward a dazed physics student (stationary). What is the frequency of the horn heard by the student. Assume the temperature is 0°C

93. ## maths literacy, geography, history, tourism

Can i become a animator if im doing this subjects and are there buseries for me

94. ## Chemistry-DrBob222

Where did you get 5E-5. Is this how you set it up? 0.01 x 0.05 = 5E-4 If so, is it supposed to be 5E-4 instead of 5E-5? What is the equilibrium constant for a weak acid HA that dissociates 1% at an initial concentration of 0.05 M according to the following

Which career can i woek for and which is interesting and pays a lot

96. ## Algebra

Suppose that Y varies directly with X, and Y=4 when X=16 (a) Write a direct variation equation that relates X and Y (b) Find Y when X=3

97. ## Physics

An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average acceleration is a= (.5m/s^2)i + (.2m/s^2)j. At 13s find the magnitude and direction of the velocity of the airplane.

98. ## science

If I mix 300g of reactant A with 100g of reactant B in a close system how much will it weigh

99. ## English

Can you please check my answers? 1.) In July, our neighbors had (went, gone) to Europe. Gone 2.) Have you (rode, ridden) the gray mare? Ridden 3.) A mountain climber must have (ran,run) into difficulty. Ran 4.) George should not have (wrote, written) the

100. ## life orientation

indetify three courses are interested after grade 12

101. ## Physics

A partide of mass m moves along a trajectory given by x= a cos δ1 t and y = asinδ2 t . Find rand y component of the force acting on the patde, potential energy, kinetic enenev of the partide and hence show that the total energe E= KE + PE =1/2 m(a*2

102. ## English

1. I am a good cook, amn't I? 2. I am a good cook, aren't I? 3. I am a good cook, ain't I? 4. I am a good cook, am I not? (Which one is commonly used? Which one is used in written forms?) ------------------- 5. I amn't a good cook. 6. I aren't a good cook.

103. ## Calculus

Starting with an initial guess of x=2, use Newton’s method to approximate (Third root of 7). Stop the iterations when your approximations converge to four decimal places of accuracy. Compare with the approximation provided by your calculator I'm so stuck

104. ## Physics

A body of mass 10g oscillates with Simple Harmonic Motion of amplitude 4cm and time period 0.50s. Calculate: a) The maximum acceleration. b) The maximum kinetic energy.

105. ## Physics

A falling rock has a speed of 1.5 m/s. What is the velocity of the rock when it hits the ground 5 seconds later? Give the magnitude and direction

106. ## math

a concert was held in a school. students tickets cost 5 dollars and regular cost 8 dollars. The school sold 284 tickets for 1600 dollars. Find the number of student tickets and the number of regular tickets sold.

107. ## Physics

A grizzly bear is running at a speed of 25m/s with respect to a man. The man is running 20m/s with respect to a rock. What is the bears speed with respect to the rock. (ALL VELOCITIES ARE IN THE SAME DIRECTION AND POSITIVE)

108. ## physics

After placing a 0.500 m dent in the landlords van, the two management students are told they and their 200 daN beer freezer have to go. The new ramp is inclined at an angle of 32.1 o relative to the horizontal. The coefficient of static friction between

109. ## Agricultural Sciences

Determine the size of the pasture by measuring its approximate length and width.One large step is approxinately one metre.

110. ## Physics

A partide of mass m moves along a trajectory given by x= a cos δ1 t and y = asinδ2 t . Find rand y component of the force acting on the patde, potential energy, kinetic enenev of the partide and hence show that the total energe E= KE + PE =1/2 m(a*2

111. ## science

A balloon filled with 3.5 L of helium at 20 °C and 3 atm. What will be the new pressure if its volume increases to 17.5 L at constant temperature?

112. ## Chemistry-DrBob222

Is the answer for part c 0.91? A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill

113. ## Biology

Compare and contrast between these two plant polysaccharides : starch and cellulose.

114. ## environmental technology

Calculate the spacing required for the water table to drop from the soil surface to a depth of 30cm in a 2days period over the area 200hecters from the following data k=4cm/hr,the drain are to be placed 105cm below the soil surface the impeamable layer is

115. ## Algebra

a certain recipe asks for ¼ of granola. how much is needed to make ¾ of a recipe?

116. ## managerial economics

calculating empirical production function Dimex Fabrication Co

117. ## physics

Explain the difference between a GET and MOSFET on the basis of their construction and working

118. ## physics

Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.

119. ## science

initial condition V1= P1= formula

120. ## math

(x - 2)10; 8th term

121. ## Agricultural Sciemces

Determine the size of the pasture by measuring its approximate length and width.One large step is approxinately one metre.

122. ## Physics

A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of

123. ## Physics

What is the wavelength of light that can cause a transition of an electron in the hydrogen atom from the orbit with n = 6 to n = 8?(answer in µm)

124. ## Physics

A grizzly bear is running at a speed of 25m/s with respect to a man. The man is running 20m/s with respect to a rock. What is the bears speed with respect to the rock. (ALL VELOCITIES ARE IN THE SAME DIRECTION AND POSITIVE)

125. ## calculus

area between the curves y^2=4x , 7y=2x+20 , 2x+3y=0

126. ## Physics

A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of

127. ## Science

A car is traveling north at 15 m/s ten minutes later it is traveling at 70 m/s what is the car s initial velocity what is its acceleration

128. ## science

How can geothermal energy affect the use of fossil fuels?

129. ## maths

a,b,cis natural numbers and the sides of a rightangled triangle theline from altitude to hypotenues is h if 1/a+1/b+1/h - 1 find a,b,c

130. ## SCIENCE

At 500K,1.00mol of ONCl is introduced into 2.50dm3 closed vessel.At equilibrium the ONCl is 6.5%dissoiated.What is the value of the Kc for equilibrium at 500K

131. ## English-poem help

Is the poem I wrote a sonnet? My aunt has cancer, i don't know how, i sit and wonder why. I get mad at God and often say i hate him. I know its not his fault, but who am i supposed to blame, its all just bad shame. I walk to see her on her bed, in pain,

132. ## Algebra

13. -4 + 7x + 4 = 3y Find the constant of variation. Someone help, I can't understand how to do it. None of the websites I look up have good explanations, help?

133. ## english,maths,chem,phy,bio,agric,civic,etc

What are the equations of motion.

134. ## biology

what type of cell recognizes cells that have been infected by viruses because the infected cells have viral proteins on their surfaces?

135. ## Chemistry

What is the mass needed to make 8.5L of a 4.0 M solutution of Na2SO4? (Na=23, s=32, O=16)

136. ## math

(x - 2)10; 8th term (2x + y)8; middle term

137. ## English

Why do people have stress learning new information?

138. ## PHYSICS

Calculate for Bohr's atomic model the speed of the orbiting electron in the n = 7 state. (Answer in m/s)

139. ## Phys

A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of

140. ## Physics

What is the difference between gravitational potential energy and electric potential energy?

141. ## Physics

An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average acceleration is a= (.5m/s^2)i + (.2m/s^2)j. At 13s find the magnitude and direction of the velocity of the airplane.

142. ## Algebra

Is .0010001... Rational?

143. ## history

this quotation presents a justification for

144. ## networking

what is the difference between vlan and subnetting ?