Ijehk7:
b,a,c,a

Profandie:
Am glad to b here in this thred..Wanna do my pgd in acc in uniben.i will b serving this year(nysc)any advice pls

Pukka36:
Yes Ma'....Abeg form is not out ooh

Fredahlicious:
i tot der said its out.. ok sha

Pukka36:
It's not iBeg!

Ijehk7:
helo guys am also an aspirant.. Hope am welcomed to the group?

McHenry99:
The half life of a radioactive element is 9days. What fraction of the atoms has decayed in 36days
a. 1/16 b. 1/4 c. 1/32 d. 15/16


An electric kettle with negligible heat is rated at 2000watts. if 2kg of water is put in it how long will it take the temperature to rise from 20° to 100°c [specific heat capacity =4200Kg/K]
a. 336s b. 420s c. 168s d. 84s


A convex lens of focal length 10cm is used to form a real image which is half the size of the object. How far from the object is the image?
a. 45cm b. 30cm c. 15cm d. 20cm


When a ball rolls on a smooth level ground, the motion of its centre is
a. translational b. random c. oscillatory d. rotational



Good morning guys.

Brian10:

Seriously, you are TERRIBLE

Fredahlicious:

i tot der said its out..
ok sha

TheHood:
its dat fücking guy dat writes in arabic dats spreading such rubbish info!
he even made me loose my savings... look at him up there^^^^

Rjasan:
mumu - my God pass you.

if itz dsame God i also serve den sure,
Him pass me.

TheHood:

its dat fücking guy dat writes in arabic dats spreading such rubbish info!

he even made me loose my savings...
look at him up there^^^^

u get savinqs so...
U reach bank b⁴ like so.?

Ologbeni, ori é ti bajè kpatakpata.

medwhite0:
@ McHenry99

i think motion about the center of a body is rotational
while translational motion is the motion about the edges of the body.

McHenry99:

The half life of the element is 9days...so we have
36/9=4
ie. it disintegrates in four times.

9days. 9days. 9days. 9days
1------1/2-------1/4--------1/8-------1/16

the remaining mass after disintegration is 1/16
but the fraction of atoms decayed
= 1-1/16
=15/16



Heat energy =mass × specific heat capacity ×temperature rise

Heat energy =power ×time

power × time = mass × specific heat capacity × temp.

2000 × time =2 × 4200 × (100-20)
time =336s



focal length = 10cm
image distance(V) =half of objet distance ie 1/2U
object distance = U

mirror formula

1/f= 1/U + 1/V
1/10 = 1/U + 2/U
1/10 = 3/U
U=30cm

but the question says the distance between the image and the object
i.e. image distance + object distance
remember the image distance is half the object distance
=30cm + 15cm =45cm



Translational motion.

Ijehk7:
helo guys am also an aspirant.. Hope am welcomed to the group?

u sure aint welcomed.
goddaamn it.!!
Pay ur dues first.!

SwagkingDope:

Lolx BABA! Na xo u lyk mess

I'm dangerous wen it cumz to fartinq o0.
Na too much beans Cus am.

dharay88:

u get savinqs so...
U reach bank b⁴ like so.?

Ologbeni, ori é ti bajè kpatakpata.

TheHood:

shey boboyi yawere sha?

mhyra:
emm, good pm house.. abeg eh, who is an aspirant here, wanna do a hookup for the "Incase" measures.. Thankies!

check daht underlined txt up der.

That's a dumb question...who we b b⁴...?

mhyra:
emm, good pm house.. abeg eh, who is an aspirant here, wanna do a hookup for the "Incase" measures.. Thankies!

medwhite0:
@ McHenry99

i think motion about the center of a body is rotational
while translational motion is the motion about the edges of the body.

dharay88:

oh i get. Aaye ti n sié telè-telè.
Werey burukú.

Brian10:

Sorry sir, check your number 3 calculations properly. Half of U is U/2 not 2/U... It affects the answer

TheHood:

ode oponu oshi!

ti nba gbaemù
maa fò òju é ri mabo.

dharay88:

check daht underlined txt up der.
That's a dumb question...who we b b⁴...?