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I mean Physics, Biology, Chemistry and Agric.
Just text your email to me with the subjects you'll be interested in.
Friday 25 May 2012
Thursday 24 May 2012
Sunday 20 May 2012
NECO EXAM IS ON THE WAY
NECO EXAM IS ON THE WAY
I thank God for WAEC, it went smoothly. NECO is on the way again and its going to be better.
Just be smart at this.
Contact me for details. This is a sure link you don't have to be worried about.
Yeap, that remainds me. People have been calling for WAEC Private Exam, popularly know as WAEC GCE. Not worry, just search for a loose center arround you and register. Leave the rest to GOD. I'll surely be of assistance when the exam commends.
I thank God for WAEC, it went smoothly. NECO is on the way again and its going to be better.
Just be smart at this.
Contact me for details. This is a sure link you don't have to be worried about.
Yeap, that remainds me. People have been calling for WAEC Private Exam, popularly know as WAEC GCE. Not worry, just search for a loose center arround you and register. Leave the rest to GOD. I'll surely be of assistance when the exam commends.
Wednesday 16 May 2012
NECO
NECO Exam is coming. Let's do again.
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It's an opportunity to get the assistance you needed to have your o'level.
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Millions of graduate couldn't have attending a university if they've not been helped during there o'level or jamb.
It's an opportunity to get the assistance you needed to have your o'level.
Contact me.
Wednesday 9 May 2012
Comments on WAEC 2012
The WAEC 2012 exam is over. I guess it's over for good. What are complains and suggestions.
Talk to me, plz.
Talk to me, plz.
Physics
Physics Objective
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Physics Theory
11a)principle of conservation of linear momentum states that in a collision system, the total linear momentum before the collision is equal to the totaWhy now ADEYEMI, u‘ve really changed. Dont allow d devil, always mal linear momentum after the collision .ke me HAPPY.
11b)during the propulsion of rocket, the gases filled in the rocket move backward in order to project the rocket forward. the net total of the linear momentum of the rocket & the exhaust gases is zero.
10c)i-it is not periodic. ii-the acceleration of the motion of the ball is not directly proportional to the distance between the two footballers
11c)i-it is not periodic. ii-the acceleration of the motion of the ball is not directly proportional to the distance between the two footballers
11d)i- the ball would hit the ground at the same time. ii-the time taken for the ball to reach the ground depends on the height of the projection & free fall acceleration
12A)i-a machine is any devices which enable energy to be used for the performance of work in a convenient way. ii-*to transmit power from one shaft to another. *to transmit motion from one shaft to
another.
12a)iii-velocity ratio for a pair of gear wheel=angular velocity of d driving wheel/angular velocity of d driven wheel. iv-the mechanical advantage of a gear system can be increased by increasing d angular velocity of d driving gear wheel.
12bi)it velocity=number of teeth of the driven wheel/number of teeth of the driving wheel=18/15=1.5 12bii)efficiency=(M.A/V.R) X 100%, E=(70X100)/(90X1.5)=51.9N, d effort required is 51.9N.
12biii)calculated effort is less than d actual effort required because d defficiency of d bicycle is less than 100%
13a)the critical angle of a glass is d angle of incidence in the glass when the angle of refraction in a less dense medium is 90degree.13b)i-a ray of light must travel from a less dense medium to a dense medium. ii-the wave length to the light should change on entering d glass
13di)p+20=45,p=45-20=25. Q=180-60=120.R=180-(25+120)=35. 3dii)refractive index n of the prism = sin i/sin r, n=sin 45/sin 25=0.7071/0.4226=1.67. iii-45 degree. iv-total deviation D=50 degree
1)frictional force Fp along d plane=mgsin@, normal reaction R of d body=mgcos@, the co efficient of friction btw the surface in contact= mgsin@/mgcos@=sin@/cos@=tan@. 2) relative density of the metal =forceexerted gy the metal in air/force exerted in water=Fa/Fw=Kea/Kew=ea/ew=10.5cm/6.8cm=1.54
6a)surface area is defined as the force per unit length on either side of the imaginary line drawn on the liquid surface at rest.
6b)1-by boiling the water. 2-by adding camphor to the water
4a)electrodes are plates made up of metal or graphite through which electric current enter or leave d electrolytes in electric cells. 4b)t=20sec m=200g z=8.33 X 10^-4 gc, m=zIt,I=m/zt=200g/(8.33 X 10^-4 X120sec)=0.2 X 10^4 A, CURRENT I=2.0 X 10^3 A.
5)SOUND wave cannot be polarized because sound wave are longitudinal,they cannot be cut off when the plane of the polarizer is changed
5c)1-depletion of natural vegetation. 2-the problem of transportation of logs
Agricultural Science
Objective
1bbcaa6daacd11dbcxc16adcdc21bcaac26bddcb31bddab36adbcc41badda46aba
bc51aabbc56acdac
Theory
2a)this is a type of land tenure system in which d land is owned
collectively by d member of d community with controlling power
with d community elders
2ci)farm machinery involves d categories of modern machines used
on the farm to provide mechanical assistance in various
agricultural production process while farm implement are simple
tools required to cultivate a small portion of land.
6a)are large areas of land where plants either growing naturally
or planted are specially preserved by government for specific
purposes. 6bi)1-increased standard of living. 2- accessibility to
forest products
6bii)1-weed control. 2-reduced cost of established plantation.
6e)1-dura. 2-pisifera & tenera. 6d)1-helps to conserve moisture &
prevent evaporation from soil. 2-it reduces rapid soil temperature
fluctuation
4a)1-climate. 2-temperature. 3-rainfall. 4-wind. 4bi)1-cultivation
of food crops. 2-rearing of animal. 2bii)construction purposes. 2
-residential building
4c)nitrogen(function: 1-promotes vegetative & short system growth.
2-aids plants growth & reproduction. symptoms:1- stunted growth.
2-yellowing of leaves)
4c)potassium(functions:1-aids synthesis of carbohydrate. 2-
promotes development of young plants. symptoms:1-weak slender
stems. 2-delayed growth). 4d.1-support d growth of crops. 2-
determines d level of fertility of d soil.
5a)1-provision of food. 2-provision of timber. 3-provision of
employment. 4-provision of raw material for industry.
1bbcaa6daacd11dbcxc16adcdc21bcaac26bddcb31bddab36adbcc41badda46aba
bc51aabbc56acdac
Theory
2a)this is a type of land tenure system in which d land is owned
collectively by d member of d community with controlling power
with d community elders
2ci)farm machinery involves d categories of modern machines used
on the farm to provide mechanical assistance in various
agricultural production process while farm implement are simple
tools required to cultivate a small portion of land.
6a)are large areas of land where plants either growing naturally
or planted are specially preserved by government for specific
purposes. 6bi)1-increased standard of living. 2- accessibility to
forest products
6bii)1-weed control. 2-reduced cost of established plantation.
6e)1-dura. 2-pisifera & tenera. 6d)1-helps to conserve moisture &
prevent evaporation from soil. 2-it reduces rapid soil temperature
fluctuation
4a)1-climate. 2-temperature. 3-rainfall. 4-wind. 4bi)1-cultivation
of food crops. 2-rearing of animal. 2bii)construction purposes. 2
-residential building
4c)nitrogen(function: 1-promotes vegetative & short system growth.
2-aids plants growth & reproduction. symptoms:1- stunted growth.
2-yellowing of leaves)
4c)potassium(functions:1-aids synthesis of carbohydrate. 2-
promotes development of young plants. symptoms:1-weak slender
stems. 2-delayed growth). 4d.1-support d growth of crops. 2-
determines d level of fertility of d soil.
5a)1-provision of food. 2-provision of timber. 3-provision of
employment. 4-provision of raw material for industry.
Commerce
1a)i-trade. ii-foreign trade. iii-retail trade. iv-wholesales trade. v-insurance. vi-tourism. vii-warehousing. viii-advertising.
1bi-this involves d extraction of raw material provided by nature. it is associated with d process of obtaining raw material from land, air & water example is mining
1bii)it involves d transformation of basic raw material /semi finished goods into final forms that acceptable to the consumers . it hence production of finished goods such as processed food,house etc
1bii)it involves d transformation of basic raw material /semi finished goods into final forms that acceptable to the consumers . it hence production of finished goods such as processed food,house etc
1biii-this involves d provision of commercial & professional services to the pple.it is associated with commercial services
3a)channel of distribution is a path throu which goods d producer to the final consumers. it enhance production & consumption of goods & services
3b)i- producer->wholesales->retailer->consumers. ii)producer->agent->retailer->consumers. iii)producers->wholesalers->consumers. iv)producers->agent->wholesalers->retailers->consumers.
3c)i-there is no language barrier in home unlike foreign trade. ii-less documentation is required in home trade unlike foreign trade. iii-home trade involves one currency unlike foreign trade.iv-transport cost is lower in home trade than in foreign trade.
3c) v-free movement of goods involves in home trade unlike goods restriction in foreign trade
7a) A contract is an agreement btw two /more parties which is intended by them to have legal banking. all contract involves agreement but not all agreement are contract
7b)i-valuable consideration. ii- genuineness of consent. iii-possibility of performance. iv-offer & unqualified acceptance. v-creation of legal relation
7c)i-by breach:this occurs when one parties involves in a con tract failed to perform his own part of the contract. ii-by lapse of time: this occurs when d period for d agreement comes to an end.
1bi-this involves d extraction of raw material provided by nature. it is associated with d process of obtaining raw material from land, air & water example is mining
1bii)it involves d transformation of basic raw material /semi finished goods into final forms that acceptable to the consumers . it hence production of finished goods such as processed food,house etc
1bii)it involves d transformation of basic raw material /semi finished goods into final forms that acceptable to the consumers . it hence production of finished goods such as processed food,house etc
1biii-this involves d provision of commercial & professional services to the pple.it is associated with commercial services
3a)channel of distribution is a path throu which goods d producer to the final consumers. it enhance production & consumption of goods & services
3b)i- producer->wholesales->retailer->consumers. ii)producer->agent->retailer->consumers. iii)producers->wholesalers->consumers. iv)producers->agent->wholesalers->retailers->consumers.
3c)i-there is no language barrier in home unlike foreign trade. ii-less documentation is required in home trade unlike foreign trade. iii-home trade involves one currency unlike foreign trade.iv-transport cost is lower in home trade than in foreign trade.
3c) v-free movement of goods involves in home trade unlike goods restriction in foreign trade
7a) A contract is an agreement btw two /more parties which is intended by them to have legal banking. all contract involves agreement but not all agreement are contract
7b)i-valuable consideration. ii- genuineness of consent. iii-possibility of performance. iv-offer & unqualified acceptance. v-creation of legal relation
7c)i-by breach:this occurs when one parties involves in a con tract failed to perform his own part of the contract. ii-by lapse of time: this occurs when d period for d agreement comes to an end.
Tuesday 1 May 2012
Physics Practical
3x1) 1-i ensured that the jockey did not scrap the potentiometer but gently touch it. 2-i ensured that the zero error of the ammeter & voltmeter are taken into consideration.
3aiii)Io=0.0A, Vo=2.8v, 3iv) & (3v) when OP=10cm,I=3.0A,V=0.7V.
3vi)OP=20cm,I=2.8A,V=0.8V. OP=30cm,I=2.5A,V=0.9V. OP=40cm, I=2.3A,V=1.0V. OP=50cm,I=2.1A,V=1.1V,OP=60cm,I=1.9A,V=1.2V
3bii) E=2v, r=1ohms, R=9ohms. I=E/(R+r)=2/(9+1)=2/10=0.2A. potential drop=E-V=Ir=(0.2x1)v=0.2v
3bi)a- lead accumulator can be recharged while a dry leclanche cell cannot. 2-lead accumulator has a higher electromotive force than a dry leclanche
CHEMISTRY
7c)i=neutral oxides, ii=acidic oxides, iii= amphoteric oxides, iv=basic oxides
1a-v) the e.m.f of d cell=+0.34v-(-0. 76v) =+0.34v+0.76v = +1.10v
7a-ii)1-nature of the ion. 2-temperature. 7a-iii) 1-to prepare electrochemical cells. 2-helps in the extraction of metal by electrolytic method.
7a-i) standard electrode is defined as the potential difference of the system of a solution of ions on coupling with H2/H+ pt system
2c-i) A and B are separated from C by filtration method. A and B are then separated from each other by fractional distillation
2b-i)le chatelier's principle states that if an external constraint such as temperature, etc, is imposed in a chemical system at equilibrium, d equilibrium position will shift so as to neutralize or annul the constraint.
2a-v-i)increasing kinetic energy: solid<liquid<gas. 2a-v-ii)increasing forces of cohesion: gas<liguid<solid.
2a-iv) V1=150cm^3,T1=300k,p=constant,V2=2V1,T2=?. V1/T1=V2/T2, T2=V2T1/V1, T2=2x150cm^3x300K/150cm^3=600K. THE TEMP at which its volume is double is 600K
2aii)charles law states that the volume of a fixed mass of gas is directly proportional to the absolute temperature at constant pressure
2ai)diffusion is a physical process in which molecules of gases mixed together until equilibrium is attained. it is also the movement of molecules from a region of higher to lower
1d)1-methyl orange. 2-methyl orange. 3-phenolphthalein. 1e) E-ammonium chloride. F- sodium hydroxide solution. G-ammonia gas
1cii)heterolytic fission is the fission of organic molecule to form different bond electron distributions. eg CH4
1ci) homologous series is the series of organic compound with the same general formula & method of preparation.eg of homologous series are alkanes which consist of methane,ethane etc.
1biii)the element in each pair have similar chemical properties because the member of each pair have the same valency electrons
1bii)1 -they are soluble in water. 2-they are polar in nature. 3-they can conduct electricity in molten or solution.
1bi)first ionization energy is the energy liberated when a loosely bound electron is removed from a gaseous atom
1aiii)the relative atomic mass of chlorine is not a whole number because chlorine is made of isotopic mixtures
1aii) the atomic number of an element is the number of protons present in the atom of the element,& the mass number of an element is the number of proton & neutron present in it
1ai) According to Rutherford,the atom has a positive charged nucleus which is surrounded by negatively charged electrons.
OBJECTIVE
1bdcaa6bbccd11cdbcd16daacd21ccbab
26caaba31dacad36abcaa41bdcbc46cbabb
MATHS Solution
Objective
1adbcc6adacb11dbdca16baccb21accbd
26bcacc31adcdd36bdaab41acbdc46adbdb
1b)sin x=2/3, y^2=3^2-2^2=5,y=5^(1/2),tan x=opp/adj=2/(5)^(1/2),cos x=5^(1/2)/3,tan x -cos x=5^(1/2)/15
13b) d surface area of d structure=surface area of mounted cone + surface area of the hemishere base= (22/7)7cmX(24cm^2 +7cm^2)^(1/2) +14cm=858cm^2
13)in <QRS @=?, COS @=5cn/13cm=0.3846, @=(cos^-1)0.3846=67.38. in <PSR [PR]=19cm [RS]=5cm [PS]=?,USING COSINE RULE [PS]^2=[PR]^2+[RS]^2-2[PR][RS]COS @, =19^2+5^2-2[19][5]COS67.38, =312.926, [PS]=(312.926)^(1/2)=17.7cm.
11a)the perimeter of d wire mesh 13m, perimeter of the garden=2(3n-1)+ 2(2n+1), 2(3n-1)+2(2n+1)=135,6n-2+4n+2=135,6n-2+4n+2=135,10n=135,n=135/10=13.5
10a) contd? $fx=3150,$f=40. mean =$fx/$f=3150/40=78.75.
10b) S.D=(fd^2/f)^(1/2)=(2526.5/40)(1/2), =(63.1625)^(1/2)=7.95
10)table contd?. d^2:
280.5625,138.0625,45.5625,3.0625,10.5625,68.0625,175.5625,333.06
25.Fd^2=561.1250,414.1875,273.3750,33.6875,84.5000,476.4375,351.125,333.0625
10) table? class interval:60-64,65-69,70-74,75-79,80-84,85-89,90-94,95-99.
F:2,3,6,11,8,7,2,1. X= 62,67,72,77,82,87,92,97.
FX:124,201,432,847,656,609,184,9
7. d: -16.75,-11.75,-6.75,-1.75,3.25,8.25,13.25,18.25.
8c) @=40,TX=23.836m, HX=?, tan 40=TX/HX,HX=TX/tan40,=23.836/0.8391=28.41m.
8b)HT=?, using pythagora"s theorem,HT^2=TX^2+HX^2, =23.836^2 +20^2, HT=(968.154896)^(1/2),HT=31.1M. THE DISTANCE BTW H & D TOP OF THE TOWER IS 31.1m
8a)@=30,(HX)=20m,(PX)=?,using tan@=opp/adj,tan 30=PX/20m,(PX)=20mXtan30=11.546m. in triangle THX, @=50, TX=?, HX=20m, using tan@=opp/adj, tan 50=TX/20m,TX=20m X tan50,TX=23.836m. THUS PT=TX-PX,PT= 23.836-11.546=12.3m
English Solution
This was the solution we forward to our team:
Oral.
1abacbbbcbc11dccbcDCCAB21DBDBC26CABCB31BBBCB36babca
41bdbdd46dbbdb51cbaba56bcdcd
Objective
1daaac6adbca11dcccc16bdcda21adadd26bbbdc31bbcdc36adcbd41acbac46dccbc
51acdab56bcdab61adddb66accaa71accba76ddcbb81cacad86abacd91cdaba96adaac
8b)looking for a shelter is the measure that the poor people have adopted in solving their housing problem
8a)the causes of the worldwide housing problems are: 1- poverty. 2- high price of land. 3-high hike in the price of building material. 4-political disaster. 5-civil war.
7g)i-adjectival clause. ii-qualify the noun"bus".
7h)i-group. ii-outstanding. iii-confusion. iv-image. v-chased.
7d)-the man thought that the writer was one of the statues & had suddenly turned into a human.
7e)one of the statues was an exact replica of the writer.
7f)i- personification. ii-he was afraid/terrified
7a)as a student. 7b-he was famous for his anti-slave trade propagation.
7c)-the writer was the only blackman in the museum at that time.
6f. i-adverbial clause. 2-it modifies the verb"announced".6g. 1-personification. 2-he should harrass them verbally. h.1-emphasised. 2-main. 3-surprised 4-left. 5-leave
6d-he should have paid a preparatory visit to his hometown.
6e. i-he has turned a deaf ear to the plight of the youth. 2-he left the town several years back & left his parent to die in penury.
6a-bademosi has treated visitors with disdain.
6b-in his huge limousine.
6c-he planned to buy a helicopter to solved the persistent problem of traffic congestion
Oral.
1abacbbbcbc11dccbcDCCAB21DBDBC26CABCB31BBBCB36babca
41bdbdd46dbbdb51cbaba56bcdcd
Objective
1daaac6adbca11dcccc16bdcda21adadd26bbbdc31bbcdc36adcbd41acbac46dccbc
51acdab56bcdab61adddb66accaa71accba76ddcbb81cacad86abacd91cdaba96adaac
8b)looking for a shelter is the measure that the poor people have adopted in solving their housing problem
8a)the causes of the worldwide housing problems are: 1- poverty. 2- high price of land. 3-high hike in the price of building material. 4-political disaster. 5-civil war.
7g)i-adjectival clause. ii-qualify the noun"bus".
7h)i-group. ii-outstanding. iii-confusion. iv-image. v-chased.
7d)-the man thought that the writer was one of the statues & had suddenly turned into a human.
7e)one of the statues was an exact replica of the writer.
7f)i- personification. ii-he was afraid/terrified
7a)as a student. 7b-he was famous for his anti-slave trade propagation.
7c)-the writer was the only blackman in the museum at that time.
6f. i-adverbial clause. 2-it modifies the verb"announced".6g. 1-personification. 2-he should harrass them verbally. h.1-emphasised. 2-main. 3-surprised 4-left. 5-leave
6d-he should have paid a preparatory visit to his hometown.
6e. i-he has turned a deaf ear to the plight of the youth. 2-he left the town several years back & left his parent to die in penury.
6a-bademosi has treated visitors with disdain.
6b-in his huge limousine.
6c-he planned to buy a helicopter to solved the persistent problem of traffic congestion
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