KABELO

Most popular questions and responses by KABELO
1. life orientation

Explain clearly how intrapersonal conflict can be addressed through engaging in physical exercises,counsellingand self talk

2. phys101

in a calorimeter can(water equivalent=40g)are 200g of water and 50g of ice,all at 0 degreea celcius.into these poured 30g of water at 90degrees celcuis.what will be the final temperature of the system?specific capacity of water is 4186j/kg per degrees

3. PHYS 101

Determine the volume of 200g of carbon tetrachloride,for wich specific gravity is 1.6

4. phys102

a copper wire has a diameter of 1.02mm,the wire carries a constant current of 1.67A,the density of the free electrons is 8.5X10^28 e/m^3.calculate the current density and drift velocity

5. chem101

if 23.74ml of 0.01470M NaOH are required to completely neutralize 25.00ml of gastric juice,calculate the concentration of the hydrochloric acid[in g/L]in stomach gastric juice

How did the fraud and corruption affected the offender' career?

7. Life Orientation

Six suggestions on how to combat the violations of human rights.

8. life orientation

define and desrcibe the human right violation that you have chosen between [human trafficking and xenophobia].

9. life onrietation

Any legislation that fights against poor service delivery?

10. chemistry

Phosphoric acid is a triprotic acid with pKa's of 2.14, 6.86, and 12.4.The ionic form that predominates at pH 3.2 is?choose the corect answer (a) H3PO4 (b) H2PO4^- (c) HPO4^2- (d) PO4^3-

11. physics

find the ratio of the intensities of two sounds if one is 8 dB louder than the other

12. statistics

How large a sample should be taken if the population mean is to be estimated with 99% confidence to within \$75? The population has a standard deviation of \$900.

13. chemistry

what is the [CH3COO^-]/[CH3COOH] ration in an acetate buffer (Ka=1.76 x 10^-5) at pH 3.8? show calculations

14. chemistry

why is the 5th ionisation energy(IE) of carbon so much larger than its 4th?

15. chem102

assuming that 1g of aspirin dissolves in 450ml of water at 10°C,how much aspirin would be lost in the 5ml of water added to the reaction mixture if the mixture were at 10°C,durin filtration?

16. Life orientation

Identify one evironmental or human factor that causes ill health, accidents and disasters in south africa? *in 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts in south africa.

17. chemistry

assuming that 1g of aspirin dissolves in 450ml of water at 10°C,how much aspirin would be lost in the 5ml of water added to the reaction mixture if the mixture were at 10°C during filtration?

18. physics

two cars are heading at each other with the same speed v. The horn of one (f=3000Hz) is blowing,and is heard to have a frequency of 3400Hz by the people in the other car.Find v if the speed of sound is 344m/s

19. chemistry

the major commercial aluminium ore is bauxite,AlO3.H2O(s).What is its molar mass?The analysis of a representive sample of bauxite shows it contains 70% by mass of Al2O3..What is the maximum mass of aluminium metal that could be obtained from 200kg of

20. chemistry

describe an alternative method to prepare a 0.2M potassium phosphate buffer using KH2PO4 and KOH

21. ohys101(heat)

a person had a skin temperature of 33degrees celcuis and was in a room where the walls were at 20degrees celcuis.if the emissivity is 1 and the body surface is 1.5meter squad,what is the rate of heat loss due to radiation? alpha=0.000000567W/meter squad k

22. Career guidance

Which career fall under the subjects?

24. Physical science

The bullet strikes a stationary of 5kg wooden block fixed to a flat,horizontal table.the bulletis brought to the rest after travelling a distance of 0,4m into the block.calculate the magnitude of the average force exerted by the block on the bullet

25. PHYS101

For a system,the cylinder on the left,at L,has a mass of 600kg and a cross-sectional area of 800centi meter squad.The piston on the right,at S,has cross-sectional area 25centi meter squad abd negligible weight.If the apparatus is filled with

26. maths literacy, history, grography, life science

What are careers of general geography?

27. chem102

the following names are incorrect,draw their structures and supply the correct name.(a)2-isopropylpentane (b)3-ethyl-5-methylhexane

28. phys101

a hydraulic press contains oil of density=800kg/meter cube,and the areas of the large cylinder=0.5meter squad and area of small cylinder=0.0001meter squad.the mass of the large piston is 51kg,while the small piston has unknown mass m.If an additonal mass

29. chemistry

a weak acid has a pKa of 6.0. what is the ratio of conjugate acid to conjugate base at pH 5?

30. chemistry

calculate pH of 0.1M CH3COOH of 100ml of that solution?

31. chemistry

for an oxygen atom,wich requires more energy,tha addition of two electron or the removal of one electron?explain why

32. physics

consider a simple harmonic oscillation with m=0.5kg, k=10N/m and amplitude A=3cm.WHat is the total energy of the oscillation,what is the maximum speed,what is the kinetic energy?

33. phys101

a homeowner wishes to drain her swimming pool by siphoning the water,whose depth is h,into a nearby gully a distance H below it,where H is much larger than h.She uses a pipe of cross-sectional areea a,and the pool has surface area A.How long does it take

34. life orientation

3human right violation or discrimination and explain in an introductory paragraph why you choose the specific human right violation or discrimination

35. biochemistry

for each of these qualitative test,barfoed test,benedict test,seliwanoff test,bial test,molisch test,and iodine test, describe the class and give aspecific example of a carbohydrate that would yield a posiyive result?

36. inorganic chermistry

a large number of hydrogen atoms have electrons excited to the n_h=4 state.How many possible spectral lines can appear in the emission spectrum as a results of the electron reaching the ground state(n_1=1)?

37. randhills college life orientation

3 environmental health hazard that cause ill health, crises, and or disasters within your community or any other community within south Africa and globally?

38. engineering science

If a person has a mass of 83 kg, what will that person weigh in newton

39. chemistry

If a solution were made by mixing equal volume of 0.1M acetic acid(HA) and 0.1M Na-acetate(A^-) what pH would it gives?

40. inorganic chemistry

what dominant colour appears for(a)the mecury street bulb (b)the sodium street lamp and (c) an incandescent bulb?

42. life orention

identify two contenporary social issues in your community

43. engineering science

A 250 cc motorbike must accelerate from rest to 126 km/h in 150 m in 10 seconds. Draw a velocity/time graph of the movement. (Hint: change km/h to m/s

44. chemistry

these is 0.1M HCl of 100ml of that solution in a beaker,calculate pH?

45. physics

two notes wich have frequency ratio 2:1 are said to be separated by an octave.A frequency wich is separated by an octave from middle C(256Hz) is?

46. chemistry

for an oxygen atom,wich requeres more energy,the addition of two electrons or the removal of one electron?explain why

47. chemistry

why is the ionisation energy of oxgen less than that of nitrogen even if oxygen is to the right hand side of nitrogen?

48. chemistry

write equations for the reactions of NaOH(aq) with solutions containing Al^3+ Cu^2+(aq),Pb^2+(aq) and Fe^3+(aq) ions respectively

49. PHYS101

A VENTURI TUBE IS USED TO MEASURE THE WATER SPEED V IN A PIPE BY COMPARING THE WATER PRESSURE IN THE WIDE AND NARROW SECTIONS(CROSS-SECTIONAL AREAS A, A=A/4).FIND V IF THE DIFFERENCE IN MECURY LEVEL IS h=25mm.(THE DENSITY OF MERCURY IS =13600Kg/meter cube)

50. PHYS101

A VENTURI TUBE IS USED TO MEASURE THE WATER SPEED V IN A PIPE BY COMPARING THE WATER PRESSURE IN THE WIDE AND NARROW SECTIONS(CROSS-SECTIONAL AREAS A, A=A/4).FIND V IF THE DIFFERENCE IN MECURY LEVEL IS h=25mm.(THE DENSITY OF MERCURY IS =13600Kg/meter cube)

51. PHYS101

oil is added to the right hand arm of a U-tube containing water.The oil floats above the water to a height of h=10cm.The top of the oil+water column is a height d=2cm above the top of the water column in the other arm .Calculate the oil density?

52. chem101

a 0.1M NaOH solution has been prepared for you.Describe how you would prepare 1 litre of the same solution

53. chemistry

explain why you get two different pH values for same solution when calculating and using pH meter of same solution?

54. physics

consider a simple harmonic oscillation with m=0.5kg,k=10N/m and amplitude A=3cm,if the oscillation is released from rest at x=A when the clock is set to t=0,determine the position of the oscillation at t=2s

55. physics

a pendulum of length L=9.8m hangs in equilibrium and is then given velocity v=0.2m/s at its lowest point.What is the magnitude of the subsequent oscillation?

56. chemistry

what is the minimum number of electrons that would be expected to be in the valence shell of As in AsCl

57. FINANCIAL MANGEMENT

a client invests 100 000 with an interest rate of 8% with quarterly compound what will the interest be after a year

58. math

the relationship between input values x and the output values y is described as:y is one less than a quarter of the number x .if x is equal to -8,-4,0,4,8;represent this relationship in a flow diagram

59. Life orientation

8 ways in which ill health impact on the community

61. inorganic chermistry

what is the characteristic flame for sodium,lithium,barium,copper and calcium?explain why

62. inorganic chermistry

(a)explain why the colour for ions in the flame tests differ (b)Why do the chemicals have to be heated in the flame first before the colour light is emitted?

63. physics

What happens when the frequency of a force applied to a system matches the natural frequency of vibration of the system

64. chemistry

1) A 3-fold degenrate subshell can carry a maximum number of how many electrons?

65. physics

two llong parallel vertical wires 0.3m apart are placed east-west of one another.The current in the eastely one is 30A and that in the other is 20A.Both currents flow upwards.The earth"smagnetic field is horizontal directed north and has magnetude field

66. chem102

help with thes -iso and cyclo when doing the nomanclatur of organic compounds

68. chem101

what is the function of an indicator in a titration

69. phys101

if the stress strai graph is a straight line,how much does the bar srtetch when applied force is increased by 50000N?

70. chemistry

calculate pH of 0.1M NH4^- of 100ml of that solution?

71. physics

a pendulum of length L=9.8m hangs in equilibrium and is given velocoity v=0.2m/s at its lowest point.What is the magnitude of the subsequent oscillation?

72. chemistry

what subshells would be found in the shells with n=3 and n=4?how many orbitals are there in a g subshell?

73. physics

help with the websites that discuss the mechanism followed during the manufacturing of a bar magnet such that it has a north and south pole

75. PHYS101

In a calorimeter can(water is melted above?

76. phys101

if the stress strai graph is a straight line,how much does the bar srtetch when applied force is increased by 50000N?

I can be able to be ceo12

posted on February 5, 2017

I can be able to be ceo

posted on February 5, 2017

Maths lit

posted on February 5, 2017
4. Life orientation

examples of human rights discriminations

posted on April 18, 2016
5. l.o

Impact of land pollution on the environment or human's health of this type of hazard,method or substance on the environment or human's spheres of life

posted on March 31, 2016
6. physics

0.2 cm

posted on September 17, 2015
7. life orientation

Five practical actions that you can take to address humans rights violations of xenophobia in your community

posted on March 10, 2015
8. life oriatation

To what extent can intrapersonal conflict affect choice of a career?

posted on March 7, 2015
9. 5 ways in which the human or environmental problem impact on the community

In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community

posted on May 19, 2011
10. chemistry

then what must i do after i have the Ka of CH3COOH

posted on February 13, 2011
11. chemistry

so wich one between the addition of two electrons or removal of an electron will requere more energy

posted on September 19, 2010
12. chemistry

so wich one between the addition of two electrons or removal of an electron will requere more ionisation energy

posted on September 19, 2010
13. chemistry

dr i can't see what you wrote here

posted on August 16, 2010
14. chemistry

DR i can't see what you wrote here

posted on August 16, 2010