Damayogenius18:
For MBBS aspirant that did not get it,don't ever think that u r a failure or those that Got mbbs are more intelligent than you....Sometimes we talk about Preparation,coming back stronger and deeping ur head in ur book,As much as all these are necessary to get mbbs, there is also God factor.....when is ur time,u will get it...it will just be like a magic...
No Retreat ..No Surrender...U can't just give up now....u have come too far to do that....Given up is not even an option...U need to press forward....If MBBS is ur Passion,there is no other course u will do that will give you Happiness....You have to be very tough...This is my Dream,am not going to give up...Nobody can stop me from achieving it......Not even me.....

lastly,I want to advice you to do your jamb very well..be very smart about this.....for MBBS student,u must aim at least 350 and above.....u can....it is possible.... If you are in Ibadan,JOIN TEAM TUTORS.....They will guide u on how to Dismantle Jamb....Their Aim is to have students that will score 370+ next year Jamb....This year,they had 330+ a lot....so they want to UP it with 40 and 50 mark(370+)...There will be decent accommodation for student that want to stay in the hostel....Most unique thing about TEAM tutor is DAT they are bringing Student that score 330+ to guide you on how to destroy Jamb....I Damayogenius will be there and many others that scored 330+ this year jamb and also experienced and seasoned teachers that will prepared to get above 350......Join now.....lecture start in October......

For MBBS aspirant that did not get it,don't ever think that u r a failure or those that Got mbbs are more intelligent than you....Sometimes we talk about Preparation,coming back stronger and deeping ur head in ur book,As much as all these are necessary to get mbbs, there is also God factor.....when is ur time,u will get it...it will just be like a magic...
No Retreat ..No Surrender...U can't just give up now....u have come too far to do that....Given up is not even an option...U need to press forward....If MBBS is ur Passion,there is no other course u will do that will give you Happiness....You have to be very tough...This is my Dream,am not going to give up...Nobody can stop me from achieving it......Not even me.....

simplebb:


Hope u beat the cut off bro?

yes

DrAuthentic:
Gat 76.25. so painful

u will get it bro

Eben331:
@DrBESTJC, ok, no problem...stop whinning me, who be boss?? I think you are right, the question is supposed to be 'what is the magnitude of the final velocity of the stone just before it hits the ground?' But that is how I dey see the question.

..This UI practice question nah and in d option m/s was there as d unit....I don't think u need anyone to tell u DAT it is the magnitude of d final velocity they were talking abt...U should also know DAT d body will av both horizontal component and vertical component of its final velocity has it hit the ground in the second motion... V =√ Vx² + Vy²....for the first case.... H = (V² - U²)/2g..
H = (30² -10²)/20 ...H= 40m
For second motion... D height is d same....ur Vx= 10ms-¹ DAT does not change throughout d motion....u can calculate ur Vy since u know your height......Vy= 0² + 2gh.no initial vertical velocity..Vy²=2gh...Vy²= 2× 10× 40 = 800m/s
V=√ Vy² + Vx²...Vy² =800
V = √ 10² + 800
V = √100 + 800
V = √ 900
V= 30m/s....

Damayogenius18:
Maybe I should give u some warming up b4 i come back....A 3kg ball moving at 8m/s strike a 2kg ball at rest.... If the collision is elaestic,what is the speed of each ball after collision ...its simple o.....

....u can use three formula for elastic collision.....but I will use two here.....M1V1 = M2V2....2nd formula....
U1 + V1 = U2 + V2.....so..3× 8 + 0 = 3V1 + 2V2 for 1...for 2...8 + V1 = 0 + V2..So....8 + V1 = V2.....substitute DAT into equation 1....
3 × 8 = 3V1 + 2(8+V1)
24 = 3V1 + 16 + 2V1
24 - 16 = 5V1
V1 = 8/5 ..V1 = 1.6....
V2 = 8 + V1
V2 = 8 + 1.6
V2 = 9.6ms....V1 = 1.6ms-1, V2 =9.6

freshsteph:







Velocity of each ball is 4.8m/s

...thanks for attempting it...but its not correct

Eben331:
M1=3kg, U1=8m/s, M2=2kg, U2=0 (at rest), V1=?, V2=? Using law of conservation of momentum: M1U1+ M2U2=M1V1+M2V2 3*8+2*0=3*V1+2*V2 In elastic collision, the relative velocity of the balls will be unchanged in magnitude but reversed in direction; so V1=V2=V in magnitude 24+0=3*V1+2*V2 >>> 24=(3+2)V >>> 24=5V >>> V=24/5 >>> V=4.8m/s. Therefore V1=4.8m/s and V2=4.8m/s.

....u tried bro...not correct sha

Maybe I should give u some warming up b4 i come back....A 3kg ball moving at 8m/s strike a 2kg ball at rest.... If the collision is elaestic,what is the speed of each ball after collision ...its simple o.....

Damayogenius18:
U guys are trying o......eben..drbest,Teflon,ntaliban.....I should be back 2moro.......

....Eben,grace sent ur question to me but I don't know it was dat important cos a lot of ppl sent question to me den on what's app and my phone is not working well....I will repair it today by Christ grace...I don't think it is hard though....DAT was y I did not attempt it then.....maybe I will look at it later....m so sori....

U guys are trying o......eben..drbest,Teflon,ntaliban.....I should be back 2moro.......

LukeSkywalker78:
well, i dont think there is any diff. Because hydrogen is a non metal and covalent bond occurs btw. Two non metals. I stand corrected i made any mistakes.

there is difference

Eben331:
@Damayogenius, Covalent bond is an interatomic bond that is formed when there is an equal sharing of electron(s) between the participant atoms. We have two types of covalent bond; they are polar and non-polar covalent bonds while hydrogen bond on the other hand, is the intermolecular bond between hydrogen and highly electronegative elements( ie oxygen, fluorine and nitrogen).

...bro longest tym....u r right
to some extent....polarity is a property of both inter atomic and intermolecular bond... Hydrogen bond is a type of polar bond.... We also permanent dipole which is a polar bond.......we av two type of covalent bond...... Ordinary covalent and dative or coordinate covalent bond...

Join the reading group... U will get all dis.....I don't like posting on nairaland.....my posting here maynt be as frequent as u may like it to be.....u will do well to join d reading group.......
If you are also in Ibadan,I will employ u to join Team tutors.....own by my boss...Sir Caleb.... He is one of d best teacher av ever come across....

Damayogenius18:
Since the date has been announced..... I will resume giving outline both physics and chemistry.......step on how to summarize ur inorganic chemistry....lemme usehydrogen has a case example....Dont On Bond Lamp In Physical Chemistry Test. Understand!!!!......Doblip CTU
D- Discovery
O- Occurrence
B- Bonding
L- Lab preparation
I - Industrial preparation
P- physical properties
C- chemical properties
T- test
U- uses....
Discovery...Hydrogen was discovered by Cavendish and name water former by lavioser....

Occurrence...1% of d earth crust,1/9 mass of water ,found in star,sun,volcanic gases,human....e.tc

Bonding....it form ionic bonding....where it uses -1 oxidation state to react with electropositive metal to for ionic/metallic hydride e.g NaH...
It form covalent hydride with covalent compound...CH4,NH3 using +1 oxidation state....it also form dative covalent bond when it exist as +1 oxidation state....I.e when it react with electron rich molecule with lone pair..e.g with water molecule to form hydroxonium and with ammonia to form ammonium ion.......why not ammonium or hydroxonium only not their ion?.... Hydrogen also form intermolecular bonding I.e hydrogen bond which is 1/10 as strong as covalent bond...e.g hydrogen bond is formed BTW two molecule of Hydrogen fluoride.....what's the difference BTW covalent bond and hydrogen bonding...?

Lab prep......5 method is common BT I will explain3.....1...metal + dil mineral acid e.g Zn + dil HCl....no heating is involve... Catalyst use copper sulphate.....collected over water....wanted dry,use fused CaCl2 or Conc H2S04.....4quick question...a.. Why not CaCl2why fused....wat is fused CaCl2.....b.why not also use dilut H2SO4 instead of Conc....c..what is d difference BTW drying agent and dehydrating agent.d..why can't we use HNO3 as our dilute mineral acid.....2....Action of on electropositve metal on water.....e.g sodium on cold water....resulting solution will be alkaline and u see bubbles of hydrogen.....u can put red litmus paper,it will change to blue.... quick question ..if sodium react with cold water wat will zinc and copper react with to produce hydrogen......3..Action of iron on steam...iron(ii)di iron(iii) oxide Fe3O4 is produced.....
In the three cases...hydrogen is collected over water or downward displacement of water.....if wanted dry,use drying agent and collection it over mercury.......

....industrial prep.....electrolysis of water.....most expensive but give purest form of hydrogen....2....Bosc process...use of water gas...quick question...why is it called water gas.....process is passing steam on red hot coke....u get water gas( CO and H2).....did process is endothermic..... Reducing water gas to CO2...did process is exothermic and more hydrogen gas is produce for the reduction,we use chromium(iii) and iron(iii) as catalyst.....this is an obsolete metohod......now reduction of synthesis gas is used.....methane with steam...using nickel as catalyst....they u reduce the synthesis gas form.....in total for one methane.. 4 mole of hydrogen gas is produced....but in Bosch process,3 mole of hydrogen gas is produced.....also methane is cheaper to get Dan coke.....quick question what's the difference BTW producer gas, synthesis gas and water gas.....

Physical properties...when you see something like this....think abt what you senses can interpret....a...sight e.g colour....Smell e.g odur..touch e.g feeling..hear e.g sound...also things like density,solubility,boiling and melting point...... Hydrogen.....odurless,colourless, give pop sound when urn in air...non soluble in water.....relative to air,less dense....

Chemical properties.....Talk abt reaction...(1).combination( b)...thermal decomposition (c) redox (d)combustion (e) neutralization (f) disproportion (g)reduction/additition (h)elimination e.t.c... Now think which one did hydrogen undergo.....combination yes....to form hydride..e.g metallic hydride....with chlorine... Dat's photochemical reaction...occur fast in bright light...... Combustion...yes...burn in air with pale blue flame to produce water....redox....is an oxidizing or reducing agent....of course, hydrogen is a strong reducing agent...it usually become oxidizer...thermal decomposition? No.....others No...except hydrogenation...from alkene to alkane

Test...give pop sound...also extinguished sphincters.... Highly combustible....neutral to litmus paper
Uses: for production ammonia on large scale....which is converted to produce ferterlizer...production of Ethanol....production of atomic bond....production oxygen hydrogen flame....use as fuel,margarine production ...e.t.c
Ways d colour of hydrogen in plasma state?
Hydrogen av 3 isotope... Name them?
Why us deutrium called heavy water..
The production of fat from all use hydrogen...what is the reaction called.....when hydrogen is remove from saturated compound...it yield unsaturation....was this process call....

Since the date has been announced..... I will resume giving outline both physics and chemistry.......step on how to summarize ur inorganic chemistry....lemme usehydrogen has a case example....Dont On Bond Lamp In Physical Chemistry Test. Understand!!!!......Doblip CTU
D- Discovery
O- Occurrence
B- Bonding
L- Lab preparation
I - Industrial preparation
P- physical properties
C- chemical properties
T- test
U- uses....
Discovery...Hydrogen was discovered by Cavendish and name water former by lavioser....

Occurrence...1% of d earth crust,1/9 mass of water ,found in star,sun,volcanic gases,human....e.tc

Bonding....it form ionic bonding....where it uses -1 oxidation state to react with electropositive metal to for ionic/metallic hydride e.g NaH...
It form covalent hydride with covalent compound...CH4,NH3 using +1 oxidation state....it also form dative covalent bond when it exist as +1 oxidation state....I.e when it react with electron rich molecule with lone pair..e.g with water molecule to form hydroxonium and with ammonia to form ammonium ion.......why not ammonium or hydroxonium only not their ion?.... Hydrogen also form intermolecular bonding I.e hydrogen bond which is 1/10 as strong as covalent bond...e.g hydrogen bond is formed BTW two molecule of Hydrogen fluoride.....what's the difference BTW covalent bond and hydrogen bonding...?

Lab prep......5 method is common BT I will explain3.....1...metal + dil mineral acid e.g Zn + dil HCl....no heating is involve... Catalyst use copper sulphate.....collected over water....wanted dry,use fused CaCl2 or Conc H2S04.....4quick question...a.. Why not CaCl2why fused....wat is fused CaCl2.....b.why not also use dilut H2SO4 instead of Conc....c..what is d difference BTW drying agent and dehydrating agent.d..why can't we use HNO3 as our dilute mineral acid.....2....Action of on electropositve metal on water.....e.g sodium on cold water....resulting solution will be alkaline and u see bubbles of hydrogen.....u can put red litmus paper,it will change to blue.... quick question ..if sodium react with cold water wat will zinc and copper react with to produce hydrogen......3..Action of iron on steam...iron(ii)di iron(iii) oxide Fe3O4 is produced.....
In the three cases...hydrogen is collected over water or downward displacement of water.....if wanted dry,use drying agent and collection it over mercury.......

Papi112:

.......ans A??

correct

Damayogenius18:
Reading group 2nit. We are not through with physics....m so sori BT I promise u DAT we will revisit it soon...we are starting chemistry 2nit...June 13...separation techniques and atomic atomic structure......
Outline of separation techniques. understand 1a..matter and composition of matter atom... Matter divided to pure and impure substance..1b..division of pure substances element compound ... Impure substance..e.g mixture...types of mixture...separation techniques..test for purity....


Atomic structure...1a...basic idea of atom structure and nucleus of atom....1b..mass and charge of proton neutron and electron and how they are deflected in uniform electromagnetic field...1c..atomic orbital... 1d...electronic structure....1e.ionisation energy...1f..electron affinity....1g ...atomic and ionic radii

Ui practise question related to d topic...jamb pq 1978 1979...

...we were not able to finish d topic yesday....so,we will do atomic orbital today....
Also we are going to atomic component....outline..1a Dalton law of atomic theory.. .1b...discovery of electron,proton,neutron and the experiment...1c quantumn chemistry,talking about principal, subsidiary/azimuthal,magnetic and spin.....1d..

Reading group 2nit. We are not through with physics....m so sori BT I promise u DAT we will revisit it soon...we are starting chemistry 2nit...June 13...separation techniques and atomic atomic structure......
Outline of separation techniques. understand 1a..matter and composition of matter atom... Matter divided to pure and impure substance..1b..division of pure substances element compound ... Impure substance..e.g mixture...types of mixture...separation techniques..test for purity....


Atomic structure...1a...basic idea of atom structure and nucleus of atom....1b..mass and charge of proton neutron and electron and how they are deflected in uniform electromagnetic field...1c..atomic orbital... 1d...electronic structure....1e.ionisation energy...1f..electron affinity....1g ...atomic and ionic radii

Ui practise question related to d topic...jamb pq 1978 1979...

An electron accelerated by a PD of 5kv and then diffracted by a crystal..what is the debrogile wavelength of the electron (a) 1.8 × 10-¹¹ (b)4.6 × 10-²¹ (C)3.8 × 10⁴ (d)6.0 × 10-²³...just a simple question to prepare u for the block topic on atomic/nuclear phy and semiconductor...the outline will out by 8

Due to some issues,I was not available for some days....m back...we continue on our block system...we are doing atomic and nuclear physics with semi conductor.....we will stop on June 8....we will start Chemistry from June 9 - June 30......we will use ababio,lamlad and A level chemistry...we are starting from the beginning...ababio,has 32 topics,ignoring chemistry of space....lamlad has 20 topics...we will follow ababio strictly and refers to lamlad and Alevel chemistry.... I will put d topic togeder so dat we can finish in 20days...i promise dat,we are going to finish chemistry and there won't be any break in Jesus name....July will be for biology....dat's for 30days....in Aug we will revisit physics...I think post jamb will be in Aug....beta,if it is in September...but let's assume august...so that we can finish,I will teach physic & chm online from June 10 to august 1 every night just for 2hr.....we are doing 40 topics...I will teach each physics topics from June 10 -July 20...fromJuly 21- Aug 1...I will teach physical chemistry n we discuss some organic...by Aug 1...we should be ready for post utme....

Damayogenius18:

1991 ques 13,15,16,17,18,20,21,22
1992 ques 13,14,15,16,17,18,19
1993 ques 14,15,16,17,18,19
1994 ques 15,18,19,20,21,22,23,24,25,26,27
1995 ques 17,18,19,20,21,22,23,24,25,26
1996 ques ...no jamb
1997 ques 20,21,22,23,24,25,26,27
1998 ques 17,18,19,20,21,22,23
1999 ques 14,15,16,17,18,19,20
2000 ques 15,20,21,22,25,26
2001 ques 16,19,20
2002 ques 23,25,27
2003 ques 16,19,21,22
2004 ques 12,13,14,15,16
2005 ques 14,15,16,17,18,19,20,21
2006 ques 41,42,43,44,47,48,49,50
2007 ques 13,14,15,16,17,18,19,20,21,22,23
2008 ques 19,20,21,23,24,25,32
2009 ques 18,19,20,21,23,24
2010 ques 15,16,17,18,19,20,21,22,23

2011ques 10,16,17,18,19,20,22,23,24
2012 ques 19,20,21,22,23,24,25
2013 ques 15,16,17,18,19,20,21,22,24
2014 ques 18,19,20,21,22,23,24,25....

This is not to replace ur normal solving of ur j
Jamb pq...its just for ur conveniences...
Also guys,its good u get a what's app number....
M not comfortable posting this on nairaland...
I think I should stop doing DAT....pls get a what's app number....

Damayogenius18:
As I promised...on our block lecture on heat....jamb pq on it...topic covered are...Temperature,Gas law,thermal expansion,thermal change and heat transfer....I included question related to humidity and dew point also...i used TONAD JAMB Physics PQ....
1978: ques 15,16,17,18,19,20,21,22,23,24,35..
1979: ques 4,5,9,10,14,17,22,24,26,34,38,41,50
1980 ques 7,10,15,24,33,44
1981 ques 1,2,3,4,5,6,11,16,20,36,37
1982 ques 4,5,16,17,21,22,37,41,43
1983 que 14,22,34,44,48
1984 que 13,17,18,19,27,28,29
1985 que 19,20,21,22,23,24,25,26
1986 que 17,18,19,20,21,22,23,24,,25
1987 que 16,17,18,19,20,21,22,23,24,25
1988 ques 15,17,18,19,20
1989 ques 14,15,16,17,18
1990 que 16,17,18,19,20......

1991 ques 13,15,16,17,18,20,21,22
1992 ques 13,14,15,16,17,18,19
1993 ques 14,15,16,17,18,19
1994 ques 15,18,19,20,21,22,23,24,25,26,27
1995 ques 17,18,19,20,21,22,23,24,25,26
1996 ques ...no jamb
1997 ques 20,21,22,23,24,25,26,27
1998 ques 17,18,19,20,21,22,23
1999 ques 14,15,16,17,18,19,20
2000 ques 15,20,21,22,25,26
2001 ques 16,19,20
2002 ques 23,25,27
2003 ques 16,19,21,22
2004 ques 12,13,14,15,16
2005 ques 14,15,16,17,18,19,20,21
2006 ques 41,42,43,44,47,48,49,50
2007 ques 13,14,15,16,17,18,19,20,21,22,23
2008 ques 19,20,21,23,24,25,32
2009 ques 18,19,20,21,23,24
2010 ques 15,16,17,18,19,20,21,22,23

As I promised...on our block lecture on heat....jamb pq on it...topic covered are...Temperature,Gas law,thermal expansion,thermal change and heat transfer....I included question related to humidity and dew point also...i used TONAD JAMB Physics PQ....
1978: ques 15,16,17,18,19,20,21,22,23,24,35..
1979: ques 4,5,9,10,14,17,22,24,26,34,38,41,50
1980 ques 7,10,15,24,33,44
1981 ques 1,2,3,4,5,6,11,16,20,36,37
1982 ques 4,5,16,17,21,22,37,41,43
1983 que 14,22,34,44,48
1984 que 13,17,18,19,27,28,29
1985 que 19,20,21,22,23,24,25,26
1986 que 17,18,19,20,21,22,23,24,,25
1987 que 16,17,18,19,20,21,22,23,24,25
1988 ques 15,17,18,19,20
1989 ques 14,15,16,17,18
1990 que 16,17,18,19,20......

sirkhaleb47:
*Special announcement*
*Team tutors* wishes to invite all candidates who is writing *2018 post utme* to her *First standard mock* examination. Why not come and weigh yourself?
Venue: *Abadina primary school ,UI*
*Date:Saturday *9th June*
*Time : *10am*
Fee: #500 only
There is also a *cash prize* for the first and second position.
You can also join us for *explicit lectures* tagged total anger against post utme failure!!!
*Why are we angry*
It is wise to direct ones anger towards problems and not people ;energies on answers and not excuses _William Arthur Ward
I wrote all team tutor's 2017 periodic mock and it really helped me in the main exam-Falola Adebayo 100l medicine
Team tutors : *we spark the brain that spank the test*
For more information: *07039412017*

....great boss....anticipating this...

Reading group....Due to some pressing issue,I was not able to follow up with d reading......Also,Due to many complains...we will revisit temperature later.........just for 2 more days..i will give questions like 20 of dem 2moro morn ...i will also take d online class 2moro...from 10pm ......pls bear with me
..

Eben331:
Make the class interactive too on Nairaland, so that, those that don't have access to WhatsApp can also benefit from the group.

..thanks for pointing this out...it will all be review when we do mechanics...

We are starting tonight with a block topic heat and gases....under heat...we have
1 Temperature and measurement
2Thermal expansion
3Expansion of Gases and Gas Law
4..Heat Energy
5..Heat transfer
6..Vapour and SVP...
Just read all up in 3days.....on the second day,there will be class from10-12...given summary on each....it is demanding but u can do it....I will go through jamb pq and get all question related to heat and gas....u know dat's not easy..so if I can do DAT,u can also do this....

PS ...this exercise is for ppl that does not really find physics difficult..if u found physics as s challenging topic,u will do well to enrol for tutorial....if u are in Ibadan,I recommend TEAM TUTOR...u will be surprise at the rate at which u will improve in physics....

Reading group Day 16....due to many ppl dat just join and request,I device a plan to review topics we av done and as well finish up the remaining topics...so we are doing something I tagged block system... I divide physics in to 6 block part which are mechanics,heat &Gass law,wave&sound,Light,Electricity/magnetism and lastly,atomic physics& semi conductor..in the reading group,we av finished mechanics and electricity but we want to review it..
This how it goes...we will finish each part in 3days...
U will read for 2days...their will be a class on the
block topic the night of second day at 20 pm on whats app..u will be given 10 - 15 question to check ur understanding.... The third day we will finish up and everybody will come with different question and we all brainstorm....we move to another block topic...

Reading day 16...capacitor,electric cell and electrical energy....Capacitor..1a what is capacitance of a capacitor..1b..parallel capacitor..1c..combination of capacitor...1d Energy stored in capacitor..1e how to charge a capictor with DC and how charge a capacitor with a capacitor..1f...uses of capacitor...1d..formula relatingo area,distance and permitivty with capacitance..

2..cell..2a..primary cell..2b..secondary cell 2c..solar cell...2d..polarization and local action..arrangement of cells...

3..Energy and power... 3a.relation BTW energy and power In electricity...3b..power consumed in kilowatt hour...3c..transmission of electricity..3d..use of meter, fuse and earthing..3e..heating effect of a current...3f..type of lamp...

Ui practise question related to topic....
Jamb phy 2012 and 2013

Reading group Day 15 electric field and electricity....1a...electric field lone positive and negative charges...1b...coulomb law of electric charge for point charges 1c..electric field strength and formula...1d..Electric potential energy 1e..electric potential..If..how to transfer charges by friction ,induction and contact...1g...how to test for charge and identify is polarity by Gold leaf electroscope and uses of proof plane...l1..Energy stored in an electric field...

Eletricity..2a..Electric current...2b..Electric current in conductor..2c..ohms law...2d...resistance and resistivity...2e..combination of resistor....
Jamb pq 2010 and 2011...ui practice question related to d topic...

Day 14 Reading group.... We av finished magnetism and electromagnetism with ac current... We are now moving to direct current....we are treating electric circuit...outline...1a..Cells..
1b..internal resistance of a cell
1c..Emf and terminal PD
1d..Grouping of a cell
1e...simple knowledge of Kirchoff rules
1f...Wheatstone bridge
1h..meter bridge
1i...potentiometer

Jamb pq 2008 and 2009...ui practice question related to it...