₦airaland Forum

EfonAlaaye2023:
I'm not surprise his candidate dump igbo youths in oyi river through uc uwafor, imagine us entrusting our security in the hand of man that had never criticized his baby terrorist in East



imagine entrusting our social development in the hand of a man that make series of excused for youths that indulge in decadence, yahoo, ritual and drugs pusher, claiming they're doing that because there is no job or frustration. the same youths that get 2m, 4m, 6m from Yahoo but will rather buy cars, lodge in hotel, carry olosho, buy luxuries things for gf instead of investing among others



pretentious, political hooliganism, terrorist sympathizer will not be tolerated in Nigeria, in fact electing Pityobi in the future is like making Nigeria headquarters of drug pushing in Africa and a country that had highest fake drugs

To imagine that in 2020, you were in Nairaland begging for 150k because of the hardship in Nigeria. If Tinubu becomes the president of the country, I hope your life would be like the way he managed Lagos.

Segunaja:
Business thrives when family and friends pay their dues. Twitter is not an NGO

Utter rubbish actually. Twitter is a social media which thrives on advertisement. Without the users in the first place, they'd not have a market. What about paying the users from the proceeds of their ads

dawnomike:
Israel seems guilty of what we today accuse Russia of...

Not true.

Yeah, Israel took the Golan during the 6 days war, but did they start the war?
The war came to Israel, they fought and got the Golan.

Russia is the one bringing the war to Ukraine.

InsanePsycho:
Women can't get pregnant during menses.

Basic biology

Seems you guys replying her are the ignorant ones. Women can in fact get pregnant as a result of sex during menstruation, perhaps not during the menstruation period.

Especially, if it's the last phase of the menstruation, the sperm could still stay around to fertilize the eggs after the menstruation period.

LyfeJennings:
That's toooooooooo much
How much is a brand new laptop
My laptop got same issues and technician said it's 7k

Replacing the motherboard. He tried fixing it, but it spoilt three times.

LyfeJennings:
How much is the motherboard

Good morning. The engineer said #45,000

Boogyman557:
HOLLY GRAM WISH I CAN HELP BUT IF U GET A PARTICULAR CHURCH WEY U DE GO, TRY GO EXPLAIN TO D PASTOR, EM FIT HELP. DAT IF DEM REALLY RECOGNIZE U AS A MEMBER.. JUST TRY AM. WTF MAN

I don't go to Church. By the way, I'm a student. But thanks anyways.

Even if you have an old PC you're not using, and would want to dash it out, please I'd be glad to accept it.

Can someone please help me with a laptop? Mine spoilt last two weeks. The motherboard spoilt and I don't have money to change it.

I'm a software developer(Backend with NodeJs, but learning ReactJs seriously to become full stack before the end of the year), looking for job and upgrading my skills as well.
Since my PC spoilt, it hasn't been easy applying to jobs and all.

If I can get a laptop on loan, to pay back as soon as I get a job(while I hope someone trusts me), I'd really appreciate the kind gesture.

...

...

...

I'm still afraid of how I'll continue with the story when this last account stands to be banned for no reason.

Why would I be banned. Please those that know the mods in this section should intercede on my behalf please.

Two of my accounts have been blocked.

Please mods should help me with this instead of blocking me.

Fynesboi, mynd44 or mods in this section, please unblock me.

aril:
Where is your location. I am base in Lagos island. Where can we hook up today..?

I'm based in Ibadan.


Fynesboi, mynd44

Avero:
Hard disk size, ram size, what Intel processor is it running on
Lastly what's the name

Lenovo ideapad S210
2gb memory

500gb Hard disk

Intel celeron 1037U

Processor speed 1.8ghz pretty fast

My account was blocked by spam bot as I wanted to update my phone number.

horpeyemmi66:
As Mathefaro has noted, this is an A-level/Pre-degree question which is a no no for O-levels/PUTME.

Why you decided to bring this in I wouldn't know but, nevertheless

1. You use this crazy formula
→g(r) = (R/R + H)^2 (acceleration due to gravity of body at a height, not to be mistaken with the gravitational potential of a body at a height V= - GM/ R + H)

→g(r)= (6.4 x 10 ^6/ 6.4 x 10^6 + 6.4 x 10^6)^2

→g(r)= 0.25m/s^2

Normally on the earth, g=10ms^-2, so mass can be gotten from there,

then W=mg
→400N=m x 10
→m=400/10
→m= 40kg

therefore, the weight of the Missile at the new Altitude is
W= mg(r)
W= 40 x 0.25
→W= 10N

2. Am not totally sure about the mass,
→W=mg
→W= d x V x g
→mg= d x v x g

→g cancels out,
→m= d x v
→m= 5500kg/ m3 x m3

→m3 cancels out m3, you are left with

→m= 5500kg

Applying
→g = Gm/R^2

→g= 6.67 x 10^ -11 x 5500/ (6400 x 10^3)^2

→g= 8.95 x 10^-21 m/s^2

3. You get an answer to this later in the morning...

Just wanna chip in something ßoss.
U missed something in ur formula.
g'=g[R/(R+H)]²
Simply solve to get 2.45m/s²
===========> as can be seen from the question, height is quite to large as radius of the earth. So when the height is significantly less than the earth's radius, then this formula will be more convenient
g'=g[1-2H/R]

For no2

Use the formulae g=4πGRp/3.
U already know what acceleration due to gravity at earth's radius should be na(9.8~m/s²) meaning that what u got can't be the answer.
Who re my to undo the latchet of my ßoss

FIGHTING

A really brilliant attempt to u guys... Bravo!


But horpe smashed it, so u guys should go through his workings and if there's any hitch, u can tell him so that he can annotate on it...



FIGHTING

Calculate the vertical distance travelled by a projectile whose initial velocity is 20 m/s at an angle of 30° to the horizontal after travelling a horizontal distance of 10 m




FIGHTING

Horpeyemmi, ur diplomacy still amazes me. I'll keep on fighting till I get a positive result


To the guys asking of the putme form, u guys should relax cos our guess is just like u guys' own. Like mathefero has annotated on the issue, u guys should all stick around this thread for the current trend on UI matter.
Like seriously, it irritates me to see comments about the putme form!



FIGHTING

To my questions, u guys got two out of the three.

No2. Let them meet at 'x' measured from the top of the tower. Let O' be the ball from the top and O'' be the ball from the foot of the tower.
Distance travelled by O'=x
Distance travelled by O"=50-x
X=gt²/2=4.9t².........…………1
50-x=ut-gt²/2
50-x=25t-4.9t²
X=50-25t+4.9t²…………………2
Equating 1 and 2
50-25t+4.9t²=4.9t²
25t=50
t=2s
But x=4.9t²
X=4.9(2²)
X=19.6m

Therefore, their time of crossing each other is after 2 seconds and they crossed each other at 19.6m measured from the tower top.


FIGHTING

@Horpeyemmi66, u tried for the other questions though u re more than it. But that No2 is a big NO.


@Thaotech, u tried wella bro but u need to be conscious of what a question wants(0.32N=320g)


That no2, really puzzled me before I could solve it.



FIGHTING

1. A body of mass 10kg in equilibrium by two ropes. If one rope pull the body horizontally and the other at 40° with the vertical, calculate the tension in each ropes.

2. A stone is dropped from the top of 50m high tower. At the same time another stone is thrown upward from the foot of the tower with a velocity of 25m/s. At what distance from the top and after how much time the stones cross each other.

3. The uniform metre rule balances on a knife edge at the 55cm mark when a mass of 40g is hung from the 95cm mark. Find the weight of the ruler



FIGHTING

Pr0ton:
- A fire engine lifts 10³ kg of water per minute through a vertical height of 40 m and discharges it through the nozzle with a speed of 6 m s^-1 Calculate:

i.. the work done per minute in lifting the water,
ii.. the work done per minute in giving the water the nozzle velocity, and
iii.. the minimum power of the engine, in kilowatts, required to work the pump (Take g = 10 m s^-2 ).

Though it came a lil bit late,......


Mass/min=1000kg/min
Works one in lifting water through pump=pAv(gh)
But pAv=m/t
Workdone=m/t(gh)
Work /min=1000(10*40)
Work/min=400000J/min

2. Work done in the nozzle is the kinetic energy given to the water thus pumped.
Work=m/t(1/2V²)
Work/min=1000(1/2*6²)
Work/min=18000J/min

3. Power in watts means to convert the mass/min to mass/second=50/3
Power=m/t(1/2V²+gh)
Power=50/3(18+400)
Power=6966.67watts
Power=6.97kw

FIGHTING