₦airaland Forum

Keep the physic coming......I have problem with my calculations....it needs fixing.

It should be 1 raise to power of -1. I got confused.

[quote author=Optimist1998 post=55313156]Chemistry
The equation PaVbTc= constant reduces to Charles Law if
A. a=1, b=1and c=0
B. a=1, b=0 and c=-1
C. a=0, b=1 and c=1
D. a=0, b=1 and c=-1

Physics
https://myschool.com.ng/classroom/photos/lthumbs/13127795721_19920002.jpg
In the diagram above, the hanging mass m2 is adjusted until m1 is on the verge of sliding. The coefficient of static friction between the mass m1 and the table is
A. m1/m2
B. m1g/m2
C. m2/m1
D. m2g/m1[/quotez
Chem ans-D
Phy ans-A

optimist1998 and Donpre am I wrong abt that sound wave

youngest85:
What is this one saying?

she is saying y'all bbn fans are stupid....and she is so right.

Donpre:
If a sound wave goes from a cold air region to a hot air region, its wavelength will

A. increase
B. decrease
C. decrease then increase
D. remain constant

Give reason

The answer is B....sound wave needs s medium to propagate,so it travels faster in a dense medium(cold air) than a less dense medium(hot air).
Speed=wavelenght * frequency

Physics If a positively charged glass-rod is used to charge an electroscope X by contact and an electroscope Y by induction, then A. X and Y will be negatively charge B. X and Y will be positively charged C. X will be negatively charged and Y positively charged D. X will be positively charged and Y negatively charged E. X will be positively charged and Y will remain uncharged Ans.A

HIScraziness:
Peeps with "big brains" yet to get admitted, pathetic!!

The people in the position to give admission feel they are God.....u have to worship them with money.....what u have in ur brain doesn't matter.

Optimist1998:
Good morning guys
A radioactive nuclide of mass 6.09 has a half-life of 8 days. Calculate the time during which 5.25g of the nuclide would have decayed
A. 1 day
B. 2 days
C. 8 days
D. 24 days
E. 42 days.

How did past question arrive at 24

something like this I guess.

besto50:
Bleep go to knowledge wares and I bet you will curse the day u step foot there..

maybe u went at the wrong time..I did mine on the 22nd of march....the population wasn't much then,It took less than 4 hours.

felix00:
OOU pharmacy

why don't u open shop and do chemist like every other person??

who has finished reading the novel(In dependence)??

Optimist1998:
As the pressure increases, the volume decreases leading to less space for them to move freely, with less space you get more friction [for gases]


But pressure has no effect on liquids
Which of the fluids are you referring to...... Gas or liquid?

u made that sound somehow erotic....especially the 'less space for them to move freely part' anyway it right.

In an ideal wheel an axle system, R stand for the radius of the wheel and r is the radius of the axle. the mechanical advantage is A. (R/r)2 B. r/R C. (r/R)2 D. R/r

A 50W electric heater is used to heat
a metal block of mass 5kg. If in 10 minutes a temperature rise of 12oC is achieved, the specific heat capacity of
the metal is A. 400 J kg-1K-1 B. 500 J kg-1K-1 C. 390 J kg-1K-1 D. 130 J kg-1K-1

The change in volume when 450kg of
ice is completely melted is [density of ice = 900 kgm -3, density of water = 100 kgm-3] A. 0.50m3 B. 0.45m3 C. 0.05m3 D. 4.50m3

Hope u aint cheating??

Temilola21:
D.

do u want more from where those came from??

see how Temilola21 is answering the questions u won't praise her

felix00:
I swear I pity any uni dat rejects dis guy, dey are missing out on one of d best out there if not d best

Enough before he starts feeling like a God....he might be good....but am better

SamanN:
I'm picking with no thinking, A.

Lol...show ur working.

As the pressure of a fluid increases,
its viscosity A. decreases B. increases C. increases then decreases D. remains constant

In a hydraulic press , a force of 40N is
applied on the effort piston of area 0.4m2. If the force exerted on the load piston is 400N, the area of the large
piston is A. 4m2 B. 8m2 C. 2m2 D. 1m2

The difference between X-rays and
gamma rays is that A. x-rays are more penetrating than gamma rays B. x-rays are electromagnetic radiations while gamma rays are
negatively charged radiation C. x-rays have higher frequencies than gamma rays D. x-rays arise from energy changes in the electronic structure of atoms
while gamma rays come from the
nucleus

Electrical appliances at home are normally earthed so that A. the appliances are maintained at a lower p.d than the earth B. both the a.c and d.c sources can be used C. a person touching the appliances is safe from electric shock D. the appliances are maintained at a higher p.d than the earth

felix00:
Thank u 4 breaking dat down for me.
What course do u wanna study and wat school..... I can't afford to be competing with someone like you for admission

He is going for med and surg.....pity Nigerian uni aren't looking for people with brain....they are looking for people with deep pocket.

Solubility: Methanol and water are A. miscible B. non miscible C. forms saturated solution D. forms supersaturated solution Ans.A

Optimist1998:
Oya explain to everyone

. It gonna be difficult using brackets.

3Fe + 4H2O <----> Fe3O4 + 4H2 The equilibrium constant K of the reaction above is represented as A. [H2]4 / [H2O]4 B. [Fe]3 [H2O]4 / [Fe3 O4] [H2]4 C. [Fe3O4] [H2] / [Fe] [H2O] D. [H2O]4 / [H2]4 Ans.A