samuelizz:


That Fy = Fsin∅ and Fx = Fcos∅ is not constant. It all depends on the diagram, the part at which the angle is facing.
Fx could also be Fsin∅.. It is advisable to always draw the diagram first before revolving.
Shalom!

Salarys:


There is one already. Check the previous pages for the link

Hardebaryor:
MrHistorian TheHistorian. Where are you oo, you are very much needed here. Comman teach us grammars.

Salarys:


Dude I saw 95 last year(2016) utme!. use of English!.. nothing is impossible

Rursh:
2016 UTME, shay that one na UTME? #betterThinkBeforeYouType

Rursh:
2016 UTME, shay that one na UTME? #betterThinkBeforeYouType

psalmhorah:
big boss ..I will be writing ds year's jamb and m picking ui mechanical engineering ..pls I will appreciate every tangible advice !!

boyejo123:

kindly create the group and share the link or inform us to submit our number.
am eager to join self

Rursh:

2016 UTME, shay that one na UTME?
#betterThinkBeforeYouType

DrBESTJC:
English.

Fill in the blank space making use of the best of the five options.

He looked.......everyone in authority as an enemy.
(A) on
(B) at
(C) in
(D) about
(E) against


...................................................
The answer they gave to the above question is (A). But I suppose that it should be (B) because you ''look at something'' and not ''look on something''

Please I need explanations.

boyejo123:
The instrument used by designers to obtain different colour patterns is called A)episcope
B)periscope
C)kaleidoscope
D)sextant

2)The bond that forms a semi conductor is
A)ionic
b)metallic
c)covalent
d)electrovalent

3)A gramophone records take 5s to reach its angular velocity of 4pierads from rest. find its angular acceleration
a)20
b)1.3
c)0.8
d)0.4

4)A car of mass 1500kg goes round a circular curve of radius 50m at a speed of 40ms-¹,the magnitude of the centripetal force of the car is
a)1.2*102N
b)1.2*10³N
c)4.8*10³N
d)4.8*10⁴N.

boyejo123:
The instrument used by designers to obtain different colour patterns is called A)episcope
B)periscope
C)kaleidoscope
D)sextant

2)The bond that forms a semi conductor is
A)ionic
b)metallic
c)covalent
d)electrovalent

3)A gramophone records take 5s to reach its angular velocity of 4pierads from rest. find its angular acceleration
a)20
b)1.3
c)0.8
d)0.4

4)A car of mass 1500kg goes round a circular curve of radius 50m at a speed of 40ms-¹,the magnitude of the centripetal force of the car is
a)1.2*102N
b)1.2*10³N
c)4.8*10³N
d)4.8*10⁴N.

akanbidamilare:
what is happening to the thread

Pes13:

u solved it 100%.

DrBESTJC:
@ boyejo123

Answers to your physics questions.
1 is C
2 is C
3 is 0.8pie.rads/s^2. Likely to be C
4 is D
.......................................................
Physics.

The correct unit of energy density is
(A) Kilogram meter cubed per second squared(Kgm^3S^-2)
(B) Kilogram meter squared per second squared(Kgm^2S^-2)
(C) Kilogram per meter cubed per second squared(Kgm^-3S^-2)
(D) Kilogram per meter per second squared(Kgm^-1S^-2)


This question defied even my physics teacher.....please somebody should help.

I need explanations...

Aybalance:
what about the power when it is 70% efficient??

DrBESTJC:
@ boyejo123

Answers to your physics questions.
1 is C
2 is C
3 is 0.8pie.rads/s^2. Likely to be C
4 is D
.......................................................
Physics.

The correct unit of energy density is
(A) Kilogram meter cubed per second squared(Kgm^3S^-2)
(B) Kilogram meter squared per second squared(Kgm^2S^-2)
(C) Kilogram per meter cubed per second squared(Kgm^-3S^-2)
(D) Kilogram per meter per second squared(Kgm^-1S^-2)


This question defied even my physics teacher.....please somebody should help.

I need explanations...

DrBESTJC:
English.

Fill in the blank space making use of the best of the five options.

He looked.......everyone in authority as an enemy.
(A) on
(B) at
(C) in
(D) about
(E) against

...................................................
The answer they gave to the above question is (A). But I suppose that it should be (B) because you ''look at something'' and not ''look on something''

Please I need explanations.

TheHistorian:


Another very tricky question that needs a cautious approach else an inevitable fallibility.

Let's take a cursory look at the structural composition of the sentence the question is extracted from.

He looked.......everyone in authority as an enemy.

Taking a keen observation,The "LOOKED" in this above sentence does not connote "VISUALISATION" like most people will hurriedly conclude.

An example is;
I LOOK AT Fatima's beautiful face every morning.

The "look at" here is a verbal phrase that performs the function of VISUALIZATION.

Unlike;;

We LOOK ON Bola as the authority on the matter.

The "look on" here is a verbal phrase that performs the function of PERCEPTION i.e what you consider/perceive people to be.

Back to the question;
He looked.......everyone in authority as an enemy.

You will agree with me that the correct answer is option A= looked ON.

Meaning He considers/perceives everyone who is in a position of authority as a foe.

Cc;;Boyejo123

Abdulmujeeb52:
Thanks for the job well done @the historian ,you indeed decoded the context and made it more clear to the hurried dudes .However ,I knew it well you might've forgot that "LOOK ON" and "LOOK AT" are both phrasal verbs not verbal phrase .Besides verbal phrases are the combination of two or more verbs e.g should have , will have been , must have been , and so forth.

TheHistorian:


Another very tricky question that needs a cautious approach else an inevitable fallibility.

Let's take a cursory look at the structural composition of the sentence the question is extracted from.

He looked.......everyone in authority as an enemy.

Taking a keen observation,The "LOOKED" in this above sentence does not connote "VISUALISATION" like most people will hurriedly conclude.

An example is;
I LOOK AT Fatima's beautiful face every morning.

The "look at" here is a phrasal verb that performs the function of VISUALIZATION.

Unlike;;

We LOOK ON Bola as the authority on the matter.

The "look on" here is a phrasal verb that performs the function of PERCEPTION i.e what you consider/perceive people to be.

Back to the question;
He looked.......everyone in authority as an enemy.

You will agree with me that the correct answer is option A= looked ON.

Meaning He considers/perceives everyone who is in a position of authority as a foe.

Cc;;Boyejo123

boyejo123:
The instrument used by designers to obtain different colour patterns is called A)episcope
B)periscope
C)kaleidoscope ANS
D)sextant

2)The bond that forms a semi conductor is
A)ionic
b)metallic
c)covalent. ANS
d)electrovalent

3)A gramophone records take 5s to reach its angular velocity of 4pierads from rest. find its angular acceleration
a)20
b)1.3
c)0.8. ANS
d)0.4
acceleration=velocity/time
4)A car of mass 1500kg goes round a circular curve of radius 50m at a speed of 40ms-¹,the magnitude of the centripetal force of the car is
a)1.2*102N
b)1.2*10³N
c)4.8*10³N
d)4.8*10⁴N. ANS
F=mv²/r

klh

Pes13:


it means d answer u got is just 70% of d energy generated. The remaining is friction.

(70/100) Y = your previous answer.

where Y is your new answer.