Optimist1998:
[img]
Still Pressure
A rectangular tank contains water to a depth of 2m, if the base is 4m x 3m, calculate the force on the base (Density of water = 10 3 kgm -3 , g = 10ms -2 )
A. 1.4 x 10 2 N
B. 24 x 10 4 N
C. 2.0 x 10 4 N
D. 1.7 x 10 3 N

B

Nuel25846:
Tension A 1000kg elevator is descending vertically
with an acceleration of 1.0ms -2 , if the
acceleration due to gravity is 10ms -2 ,
the tension in the suspending cable is
A. 1.0N
B. 10.0N C. 9000.0N
D. 11 000N
1000kg*1.0ms+1000kg*10ms=11000N ans D

You didn't use the acceleration of 1m/s?
You're accelerating downwards
The formula is Tension= mg-ma

Donpre:

I think there isn't a correct option too

@Option C, Since velocity increases as temperature increases, and frequency remains constant, then wavelength should also increase and not decrease... could be a typo or a mistake. I'll Google search just to be sure

I really do hope it's a typo

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Where you able to complete your jamb reg today?

why not let us create WhatsApp group.. for science students only

3.0 INCLUSIVE APPROACH TO SALE OF APPLICATION DOCUMENTS

As part of our approach to the ideal of Inclusiveness, we invited all Central Bank of Nigeria approved commercial banks to participate in the sale of the 2017 Board’s Application Documents. Sixteen (16) commercial banks and NIPOST honoured attended the interactive session where we explained the reason and need for all of them to partake in the exercise.

After the interactive session, thirteen (13) banks including NIPOST signified interest to participate in the sale of the 2017 Application Documents. Between the date of commencement of sale on Monday, 20th March and yesterday, Tuesday, 28th March, 2017, the following nine banks have paid for the number of Application Documents they require in the first instance.

The banks are:
(i) Zenith Bank
(ii) Union Bank
(iii) Sterling Bank
(iv) Unity Bank
(v) First City Monument Bank
(vi) Fidelity Bank
(vii) First Bank
(viii) Skye Bank
(ix) Jaiz Bank

Still in the spirit of our All-Inclusive approach, backed by our sincerity of intent and purpose, honesty, integrity and truthfulness and with the sole aim and objective of reaching out to all nooks and crannies both in urban and rural areas, we had to patronise the NIPOST, a sister agency, which has the reach out to very remote towns and villages. Even when NIPOST could not raise the capital to purchase the pins for the Application Documents, we had to open a credit line for NIPOST to also vend pin and pay later without reducing the commission that the organisation is entitled to per sale of document.

No bank needed to know the Registrar or any Management member or anybody at all before being patronised. Rather every bank was given the opportunity to participate. We are actually for everybody and belong to everyone.

4.0 PIN VENDING SYSTEM
Emerging from the retreat at Abeokuta, the Board has innovated a contemporary sale of application method, which has led to the elimination of scratch cards. The Board has adopted a cost saving procedure PIN Vending System. It is a secured system which has redressed the sharp practices associated with the use of scratch cards.

We are aware of the teething problems attendant to the introduction of the new sale format, and as a responsive body, we have taken steps to ease the challenges and in a few days, the results would be a seamless registration exercise all over the country.

5.0 SUPVERISION OF THE UNIFIED TERTIARY MATRICULATION EXAMINATION
The Joint Admissions and Matriculation Board has no university of its own. It is our desire that all concerned should take the UTME as their own and make it a project. The process and product of the examinee would end up in our various tertiary institutions and as such, we should be mindful of this process. Whatever level of preparation carried out by us towards the conduct of the 2017 examination, if it is not well supervised, it will not produce the kind of results we expect.

The Board is using this retreat to place a clarion call to all stakeholders to ensure that all hands are on deck to make the conduct of public examination better.

The conduct of the Board’s examination which is a selection examination is the foundation of the quality of education in Nigeria. In view of this, I urge you to see Unified Tertiary Matriculation Examination and your involvement as a call to national duty and personal sacrifice.

I therefore urge all stakeholders especially our tertiary institutions to be actively involved in the supervision of the Board’s examination which will at the end benefit all and boost the quality of candidates that will be admitted into various institutions.

No sacrifice in this regards would be too big or too small to make by you and all Nigerians, as no amount can be paid to you that is worth your integrity.

6.0 EXAMINATION SCHEDULES
A large number of candidates who register for the Board’s examination are those who are also taking their Senior School Certificate Examination. These candidates sit for the Unified Tertiary Matriculation Examination usually need in March/April when they have not completed the syllabus of the public examinations. This contributes to some extent to the dismal performance of the candidates in the Unified Tertiary Matriculation Examination.

What we have done this year is to ensure that the examination is scheduled in such a way that the candidates would be prepared and ready for both UTME and SSCE.

To achieve this, we met with other sister examination bodies and streamlined our timetables not only to ensure that candidates are prepared but also to avoid any clash of examination dates.

7.0 USE OF EIGHT KEYS WITHOUT A MOUSE
From the general feedback on the adoption of the Computer Based Test mode, we have noted the challenge of computer low level literacy of some candidates, especially with the phobia for the mouse. This has been responsible partly for the call by some people for reversal to the Paper and Pencil Test mode. In order to ensure equity and level playground for all candidates taking the Unified Tertiary Matriculation Examination, the Board has designed a system that will allow candidates use only eight ( keys without the use of the mouse.

All the candidates need to do is to press the letters A,B,C,D for responses (answer) to questions and keys:
P = Previous question
N = Next question
S = Submit responses when candidate has finished examination
R = Reverse (do not intend to go further to submit again)

8.0 EQUAL DISTRIBUTION OF CANDIDATES TO CENTRES
Following the standardisation of the Computer Based Test (CBT) centres in terms of carrying capacity of two hundred and fifty (250), candidates would be distributed evenly to all centres without any discrimination. No Centre would be favoured and no Centre would be discriminated against.

The examination Schedule, Timetable and Sessions have all been designed, streamlined and syncronised for the examination to start and end on the same day, except otherwise dictated by the number of candidates in a few states with low subscription.

9.0 NEW TRAINING MANUAL, FORMS AND ORGANOGRAM OF EXAMINATION OFFICIALS
From this year, the Board has automated different reporting forms for examination officials. These forms have been reviewed such that they are now designed to be responsive to issues at centres to serve as a quick signal for both the examination and Centre situations.

A new structure has also been put in place for the administration of the examination. We have introduced officials such as the Chief External Examiners, Zonal External Examiners, External Examiners, Peace Monitors etc.

All these categories of officials and their roles would be explained in the presentation that would follow shortly after these introduction and opening remarks.

Donpre:
which formula did you use?

Mass*Acceleration due to gravity+mass*Acceleration

Isaolamide:
Suggestion.

Can someone create WhatsApp group and add us there for brainstorming.
Mine is 07032430757 is there has been existing group for that

It could work but I'm not on whatsapp. Have you considered how we could easily digress to unimportant stuffs on WhatsApp?

plus the huge task of skimming through the chats you missed......

[quote author=Optimist1998 post=55082764]
It could work but I'm not on whatsapp. Have you considered how we could easily digress to unimportant stuffs on WhatsApp?

plus the huge task of skimming through the chats you missed......[/quoteif that is the case,we skim through the messages here too

Isaolamide:
if that is the case,we skim through the messages here too

I understand your point but the messages here are kinda permanent compared to whatsapp and trust me it's easier to skim through the pages "here" than WhatsApp.

This place is cold
I guess everybody's studying.

Donpre:

B

Yes b..p=hpg and then use p=f/a

Isaolamide:
Can you please show us the solution?

Kk
For that of capacitors.

Whats the function of a capacitor? Storage of charges

What about inductors?
They help to increase ElectroMotive Force (EMF)

How do they do it? By changing the direction of the corrent[img]http://4.bp..com/-4dZytBXjRhc/TrUSB0buh6I/AAAAAAAAAYg/K0mixYi6GIc/s1600/Symbol-Inductor-WikiForU.jpg[/img]
Basically an EMF is a force that drives electric charges. When you have an inductor in your circuit, you'll be pushing the charges with more force and they'll move faster as a result. This fast movement can lead to collisions (let's call it accident) which we see as electric sparks.

How can you prevent this?
Capacitors will help to remove some charges (in the process of storing),thus, reducing the number of charges available for collisions and voila no more sparks

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The question on Mechanical advantage was properly explained by Nuel25846

I. Mass
II. Density
III. Temperature
IV. Nature of substance
which of the above affect diffusion?

A. I and II only
B. I,II and IV only
C. II, III and IV only
D. I, II, III and IV

Past question thinks C is the answer
I think D is the answer
What do you think is the answer?

Optimist1998:

I. Mass
II. Density
III. Temperature
IV. Nature of substance
which of the above affect diffusion?

A. I and II only
B. I,II and IV only
C. II, III and IV only
D. I, II, III and IV

Past question thinks C is the answer
I think D is the answer
What do you think is the answer?

you are right... Its D.

Temperature; increase in temperature increases the movement of molecules/ increases in diffusion/decrease in temperature slows down movement of molecules/decreases diffusion

State/nature of the diffusing substance; molecules in gaseous state diffuse faster than those in liquids or solid states/molecule in solid state diffuse slower than those of liquid and gas.

Although its confusing when choosing the answer

Optimist1998:

I really do hope it's a typo

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Where you able to complete your jamb reg today?

yea I was

Optimist1998:

I. Mass
II. Density
III. Temperature
IV. Nature of substance
which of the above affect diffusion?

A. I and II only
B. I,II and IV only
C. II, III and IV only
D. I, II, III and IV

Past question thinks C is the answer
I think D is the answer
What do you think is the answer?

Since density is directly dependent on mass and volume, C is definitely wrong... I'd go with D

Donpre:

Since density is directly dependent on mass and volume, C is definitely wrong... I'd go with D

castrokiller:
you are right... Its D.

Past questions

Optimist1998:

Kk
For that of capacitors.

I don't understand, I thought capacitors store charge which it used by inductors to produce sparks. Now you're saying, capacitors reduce the number of charges and brings about less or no sparks

Maybe I gotta go revise that topic

emperor272:
why not let us create WhatsApp group.. for science students only

WhatsApp won't Favour us

I'm also totally against the WhatsApp idea, the inefficiency of WhatsApp groups cannot be overemphasized

Donpre:
I'm also totally against the WhatsApp idea, the inefficiency of WhatsApp groups cannot be overemphasized

What are u applying for... Mine is med%surg

Optimist1998:
Good morning y'all

When light passes through two media x and y of refraction indices 1.51 and 1.33 respectively, the speed of light in
A. x is same as in y
B. x and y is same as in vacuum
C. x is higher than in y
D. y is higher than in x

Give reasons

The speed of light is higher in y than x because speed of light changes in different medium. The speed of light slows down in a dense medium(with higher refractive index). From V = c/n where n is the refractive index. You can visit http://servantboy.com/2017/03/20/optics-light-waves/ for more info.

Donpre:
B


I'd go with D

Most Def A

I'm assuming there isn't an angle. using the formula for range, there wasn't a correct option but using the formula for maximum height, A would be correct

Are you sure the question is correct?... and the S.I unit of the answers is also wrong

The S.I base unit is wrong but the question is correct.
For maximum range angle is 45.
Rmax = u^2/g

castrokiller:
What are u applying for... Mine is med%surg

Same bro... which uni?

Its D... The speed of light is greater in y because of the refractive index of y

Donpre:
I don't understand, I thought capacitors store charge which it used by inductors to produce sparks. Now you're saying, capacitors reduce the number of charges and brings about less or no sparks

Maybe I gotta go revise that topic

Ok I'll wait till you revise it.
That should clear up the confusion.

Donpre:
I'm also totally against the WhatsApp idea, the inefficiency of WhatsApp groups cannot be overemphasized

guy I remember you from last year's thread...
Are you writing this shiit again?