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Re: Jamb Lecture/past Questions For Science/art Students by Segipaul: 8:52am On Oct 11, 2014 |
smartdave1:two formulas for finding average speed. 1. A.v=distance/time 2. A.v=(u+v)/2 both would give u same answer but if distance and time were given in the questn it is adviceable u use the ist one but if only initial and final velocty were given u should go for the 2nd formula.... Coz of time factor!....so it depends on the questn. 1 Like |
Re: Jamb Lecture/past Questions For Science/art Students by Thewhizzkid1(m): 9:01am On Oct 11, 2014 |
deb6:Nice....Very correct... |
Re: Jamb Lecture/past Questions For Science/art Students by Segipaul: 9:04am On Oct 11, 2014 |
on how it was gotten... Distance(s)=t(u+v)/2.... But average speed=distance/time therefore A.v =t(u+v)/t x 2 of coz u knw t wil cancel out t A.V = (u+v)/2 hope it's clear now |
Re: Jamb Lecture/past Questions For Science/art Students by smartdave1: 9:07am On Oct 11, 2014 |
^^^ Clear! |
Re: Jamb Lecture/past Questions For Science/art Students by smartdave1: 9:16am On Oct 11, 2014 |
1 Like |
Re: Jamb Lecture/past Questions For Science/art Students by Nobody: 9:25am On Oct 11, 2014 |
Thewhizzkid1:Thanks. Can u pls solve n explain this one: m & n are non-zero digits such that mmmfour =nneight. find m & n. |
Re: Jamb Lecture/past Questions For Science/art Students by agafiya: 9:31am On Oct 11, 2014 |
agafiya:Someone should answer this. |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 9:37am On Oct 11, 2014 |
Thewhizzkid1:i was notified about ur msg but d msg box is void there in noti there |
Re: Jamb Lecture/past Questions For Science/art Students by Thewhizzkid1(m): 9:49am On Oct 11, 2014 |
Benjaminbest:I've replied to d question u asked about their marking. |
Re: Jamb Lecture/past Questions For Science/art Students by Thewhizzkid1(m): 10:26am On Oct 11, 2014 |
deb6:Change mmm(base 4) to base 10....Also change nn(base 8 )to base 10...U will have: 21m(base 10)=9n(base 10) From the above, we have that: m/n = 9/21..When u divide further; m/n=3/7...Hence m=3 and n=7...Please if u have d answer, check if it tallies... U can also substitute d values of m and n back into the equation to confirm...Pls u can let me know if u didn't get d explanation... 1 Like 1 Share |
Re: Jamb Lecture/past Questions For Science/art Students by Nobody: 11:11am On Oct 11, 2014 |
@Thewhizzkid1, ur answer is right but am confuse i thought the answer should be m=7 & n=3 from 21m=9n. pls explain |
Re: Jamb Lecture/past Questions For Science/art Students by mathefaro(m): 11:19am On Oct 11, 2014 |
I'm very happy that people have started coming out to contribute, I can now sit back and relax. Keep up the good work guys.. |
Re: Jamb Lecture/past Questions For Science/art Students by mathefaro(m): 11:27am On Oct 11, 2014 |
deb6:Divide both sides by 21n ( the 21 to remove the coefficient from m while the n to bring the unknown variables m and n together) |
Re: Jamb Lecture/past Questions For Science/art Students by Thewhizzkid1(m): 11:37am On Oct 11, 2014 |
agafiya:I think d answer is "infinite"...Dix requires more of an explanation than calculation..Immediately d circuit is closed, current starts flowing through d capacitor and resistor, d emf of d capacitor starts increasing and d opposition of the capacitor to current increases until infinity and no more current passes through d circuit.. |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 11:49am On Oct 11, 2014 |
If a force P of 40N act in d direction due east and another force Q of 30N acts in the direction due North, calculate the resultant of these two force |
Re: Jamb Lecture/past Questions For Science/art Students by Nobody: 11:51am On Oct 11, 2014 |
mathefaro:thanks, i now get it. |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 12:03pm On Oct 11, 2014 |
1000cm of water is mixed with 2000cm of saturated salt solution. If there is no change in total volume, what is the density of the mixture? The relative density of the saturated salt solution is 1.20 |
Re: Jamb Lecture/past Questions For Science/art Students by nsidible(f): 12:20pm On Oct 11, 2014 |
please those who had registered.. I need the following from you....kindly paste the following syllabus on English, mathematics, government, economics..I forgot mine in sch..I reg in Benin @ national open university 2nd of October 2014...I'm currently in Nd2..I'm giving jamb 2in1 next year direct entry and jamb |
Re: Jamb Lecture/past Questions For Science/art Students by Thewhizzkid1(m): 12:28pm On Oct 11, 2014 |
deb6:After doing what mathefaro said, You may simply take it as; numerator(on left side)=numerator( on ryt side) and denominator(on left side)= denominator(on ryt side)... |
Re: Jamb Lecture/past Questions For Science/art Students by Geofavor(m): 12:42pm On Oct 11, 2014 |
Hi, everybody... I'm new here, nd i like what i'm seeing here.. I'm also going to write the upcoming jamb.. Pls, Can anyone help me with the syllabus for * english *mathematics *physics *chemistry |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 12:50pm On Oct 11, 2014 |
it seem to me now dat most of our student cannot read without following d syllabus i have a little advice for such people because jamb expect u to read and understand from cover to cover not some topic on d subject but all d topic regarding d subject |
Re: Jamb Lecture/past Questions For Science/art Students by nsidible(f): 1:22pm On Oct 11, 2014 |
Benjaminbest:tanx I know... I just need English please |
Re: Jamb Lecture/past Questions For Science/art Students by Geofavor(m): 1:30pm On Oct 11, 2014 |
Benjaminbest:true. But I need the syllabus to know if i'm not omitting anything |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 1:42pm On Oct 11, 2014 |
alryt but i want u guys to no dat everytin in d syllabus are fron text books |
Re: Jamb Lecture/past Questions For Science/art Students by Nobody: 2:05pm On Oct 11, 2014 |
Thewhizzkid1:Ok |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 3:04pm On Oct 11, 2014 |
what instrument is used to separate blood cells from plasma |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 3:30pm On Oct 11, 2014 |
for now expect chemistry update day by day...i will b posting it chapter by chapter till will cover everytin |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 3:46pm On Oct 11, 2014 |
questions dat u are likely to see from chapter one and two scientist approach to discoveries follows d order which include...... A further experiment and problem solving b theory, negative and positive result c experiment,hypothesis and result d observation,hypothesis and experiment which of these require crystallization most a drug making b cement making c paint making d perfume making one of these is not a chemical change a rusting b sublimation c slaking of quicklime d fermentation Method adopted in seperating lead || chloride from water is a sieving b decantation c crystallization c distillation fractional crystallization is a method of seperating a crude oil b liquid_liquid mixture c coal d Solid of different solubilities in a liquid all except one is a popular criteria for purity a melting b dielectric constant c temperature d centrifugation d addition of water to calcium oxide leads to a a physical change b a chemical change c the formation of a mixture d an endothermic change a chemical reaction is always associated with a an increase in composition of one of d sub b a change in volume of d reactant c a change in nature of reactant d the formation of new substance |
Re: Jamb Lecture/past Questions For Science/art Students by Thewhizzkid1(m): 3:54pm On Oct 11, 2014 |
Benjaminbest: |
Re: Jamb Lecture/past Questions For Science/art Students by Thewhizzkid1(m): 4:03pm On Oct 11, 2014 |
What is d stationary and moving phase respectively in (i) ascending paper chromatography (ii) gas chromatography |
Re: Jamb Lecture/past Questions For Science/art Students by Benjaminbest(m): 4:03pm On Oct 11, 2014 |
d element with d highest composition in d earth crust is...... A neon b oxygen c nitrogen d carbon d element with d highest composition in atmosphere is...... A nitrogen B oxygen c helium d neon |
Re: Jamb Lecture/past Questions For Science/art Students by smartdave1: 5:29pm On Oct 11, 2014 |
Benjaminbest:centrifuge. |
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