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UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 - Education (320) - Nairaland

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Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Nobody: 12:54pm On Jun 16, 2015
An object placed 18cm in front of a convex mirror produced am image 6cm behind the mirror. find the power of lens
A 0.1
B 0.2
C 0.5
D 0.9
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by lordkvng(m): 12:56pm On Jun 16, 2015
RobinHez:
U see na...

F=mgsin¤
ok thanks
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Nobody: 12:56pm On Jun 16, 2015
so who is gonna do the correction of those econs questions we answered chai! cry
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Godwin10(m): 12:57pm On Jun 16, 2015
No one is stroking anyone here, for all have noticed. This dude just wants to be a nuisance. I will file a report to the mods, of course he might be banned and as well create another moniker but the one solution is if everyone could ignore the fella post, it will be worth it. Take a look at Ada96, she is already doing well. If he likes, let him cause your grandmother, just let him be. There are lots of important issues to base your energy on than throw curses to each other...
#OneLove.

1 Like

Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by dharay99: 12:58pm On Jun 16, 2015
Ada96:
so who is gonna do the correction of those econs questions we answered chai! cry
call ur man daht posted d question na.
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Pukka36(f): 12:58pm On Jun 16, 2015
Godwin10:
Afternoon Ma, how has your day been ?
Very boring sir!

I sent U a mail.
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Pukka36(f): 1:01pm On Jun 16, 2015
clintonopah:

An object placed 18cm in front of a convex mirror produced am image 6cm behind the mirror. find the power of lens
A 0.1
B 0.2
C 0.5
D 0.9
B
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by lordkvng(m): 1:04pm On Jun 16, 2015
clintonopah:

An object placed 18cm in front of a convex mirror produced am image 6cm behind the mirror. find the power of lens
A 0.1
B 0.2
C 0.5
D 0.9
A?
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Godwin10(m): 1:10pm On Jun 16, 2015
Pukka36:
Very boring sir!


I sent U a mail.
Yea, seen.
Please Refrain from violence in whatever thy doeth cheesy
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 1:11pm On Jun 16, 2015
lordkvng:
a 10h.p car travels at a uniform velocity of 15m/s
1)what is the work per second done by the engine,
2)calculate the frictional force overcome

What's with the H.P ?
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 1:12pm On Jun 16, 2015
Ada96:
so who is gonna do the correction of those econs questions we answered chai! cry
Cc Umartins1
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Emodeee: 1:12pm On Jun 16, 2015
Hae dude, m nt trying to start a brawl with ade96, I just want to make her ma friend.
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by lordkvng(m): 1:13pm On Jun 16, 2015
RobinHez:
What's with the H.P ?
horse power
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 1:24pm On Jun 16, 2015
lordkvng:
a 10h.p car travels at a uniform velocity of 15m/s
1)what is the work per second done by the engine,
2)calculate the frictional force overcome

Is work done 5N?
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by lordkvng(m): 1:34pm On Jun 16, 2015
RobinHez:

Is work done 5N?
nope... note (work done per second)
also 1H.p = 750w
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 1:36pm On Jun 16, 2015
lordkvng:
nope... note (work done per second)
Ehmm...I haven't solved with h.p b4.
So to convert 1 h.p to watts =746...ok lemme try again
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 1:41pm On Jun 16, 2015
Lordkvng
Correction pls!
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by lordkvng(m): 1:47pm On Jun 16, 2015
RobinHez:
Lordkvng

Correction pls!
Alright. bro

"work done per second" is the Same thing as "power"
So 1hp = 750watts

10hp = 7500watts...answer for number one.


2) p = f * s/time ...
but V = s/t...
therefore p = FV ...
7500=F * 15...
F = 7500/15...
F = 500N ...
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 1:59pm On Jun 16, 2015
lordkvng:
Alright. bro
"work done per second" is the Same thing as "power" So 1hp = 750watts
10hp = 7500watts...answer for number one.

2) p = f * s/time ... but V = s/t... therefore p = FV ... 7500=F * 15... F = 7500/15... F = 500N ...
Hmmmm....
Thanks!
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 2:03pm On Jun 16, 2015
**Sadly Pulls of his referee kit, keeps his yellow, red and green card , and removes his whistle from mouth**

Choi! Next time then....

Sleep dey worry me (strange )

But I'm still around, if u want to mention me!
#ghost mode activated!
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Nobody: 2:39pm On Jun 16, 2015
lordkvng:
A?
correct
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Nobody: 2:46pm On Jun 16, 2015
Alright, I understand. He is a cyber bully. You kan ignore him. Jast study for your exam, that's ya biggest priority now.

And indeed, I didn't see whatever transpired in the past, thus my statement; Just that I find it irritating when people call each others names. That's why I refrain and quickly apologise if I suspect I'm disturbing a person's komfort, (I don't even call anybody names or hit back when I'm hit) It Makes life sweeter, my lass.


Emodee is only a child. He wodnt do this if he knew better, I swear.

Just leave him alone and aim at your skool.
U guys were like happy family, everywhere is so dirty now.hm.
Take care, Pukka.
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 3:04pm On Jun 16, 2015
*opens one eye...checks around* Groundnuted oil!!!
**goes back to (fake)sleep! smiley**
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Princecalm(m): 3:19pm On Jun 16, 2015
RobinHez:
*opens one eye...checks around*
Groundnuted oil!!!

**goes back to (fake)sleep! smiley**
you no get work I swear.
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 3:31pm On Jun 16, 2015
Princecalm:
you no get work I swear.
U wey get work...Thank God!
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Princecalm(m): 3:42pm On Jun 16, 2015
RobinHez:

U wey get work...Thank God!
I no talk say I get work abi na because I no say I no get work like you.
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by Nobody: 4:25pm On Jun 16, 2015
Some people self... You try to woo girl she nor agree, you con begin insult her to make her feel bad. Is that wise? May GOD forgive you.
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 4:41pm On Jun 16, 2015
**opens another eye** **reads comments** Groundnuted oil!! **goes back to sleep**
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by lordkvng(m): 5:13pm On Jun 16, 2015
define inertia?
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by luckidoc(m): 5:30pm On Jun 16, 2015
lordkvng:
a 10h.p car travels at a uniform velocity of 15m/s
1)what is the work per second done by the engine,
2)calculate the frictional force overcome

cc robinhez, medwhite0

1)ans 10j....one HP is equal to the rate of work done
1hp=w.d\t
wen T is 1sec
10hp=w.d\1
w.d=10joules
2)HP=f*d/t
where d/t=velocity
10hp=f*15m/s
f=10/15
f=0.67
Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by RobinHez(m): 6:09pm On Jun 16, 2015
@Umartins1 help!

Re: UNIBEN STUDENTS ADMISSION THREAD, 2015/2016 by lordkvng(m): 6:16pm On Jun 16, 2015
luckidoc:


1)ans 10j....one HP is equal to the rate of work done
1hp=w.d\t
wen T is 1sec
10hp=w.d\1
w.d=10joules
2)HP=f*d/t
where d/t=velocity
10hp=f*15m/s
f=10/15
f=0.67
no oo

formula for power = workdone/time taken........
work done per second is the Same thing as power.
the power is already given in d question, all you need do is to convert it to Watts.

as for number two, you got it right, but convert 10horsepower to Watts before you apply the formula

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