In the extraction of Iron In the blast furnance,SLAG is produces using
A. Bauxite
B. Sodium trioxonitrate v
C. Limestone
D. Carbon iv Oxide

TryAces:
In the extraction of Iron In the blast furnance,SLAG is produces using
A. Bauxite
B. Sodium trioxonitrate v
C. Limestone
D. Carbon iv Oxide

A

Which of the following will be observed on adding conc. H2SO4 to sucrose crystals ?
A. a blue solid
B. a colourless solution
C. a char
D. an effervescence

TryAces:
In the extraction of Iron In the blast furnance,SLAG is produces using
A. Bauxite
B. Sodium trioxonitrate v
C. Limestone
D. Carbon iv Oxide

C

TryAces:
Which of the following will be observed on adding conc. H2SO4 to sucrose crystals ?
A. a blue solid
B. a colourless solution
C. a char
D. an effervescence

C

TryAces:
Which of the following will be observed on adding conc. H2SO4 to sucrose crystals ?
A. a blue solid
B. a colourless solution
C. a char
D. an effervescence

C

.

Pukka36:
C

Pukka36:
C

U got both correct congrats

clintonopah:
C

correct

lordkvng:
Which of the following is/are vector(s)
a)magnetic field
b) electric current
c)mass
d) weight
e) gravitational field

A D E

A man sits in a train moving with uniform speed in a straight track. If from his outstretched palm, he tossed a coin vertically upwards, the coin will fall
A. In front of his palm
B. Behind his palm
C. Into his palm
D. Beside his palm.
.
An object is projected with a velocity of 100m/s at an angle of 60 to the vertical. What is the time taken to reach the highest point.
A. 5s
B. 8.7s
C. 10s
D. 17.3s
E. 20s
.
The mechanical advantage of an inclined plane depends on
A. Its length
B. Its height
C. The product of its length and height
D. The ratio of its length and height.
.
I may not be around d answers. Lest I forget, hbd in arrears to princecalm.

DoctorAB:
hbd in arrears to princecalm.

thank Doktor.

DoctorAB:
A man sits in a train moving with uniform speed in a straight track. If from his outstretched palm, he tossed a coin vertically upwards, the coin will fall
A. In front of his palm
B. Behind his palm
C. Into his palm
D. Beside his palm.
.
An object is projected with a velocity of 100m/s at an angle of 60 to the vertical. What is the time taken to reach the highest point.
A. 5s
B. 8.7s
C. 10s
D. 17.3s
E. 20s

The mechanical advantage of an inclined plane depends on
A. Its length
B. Its height
C. The product of its length and height
D. The ratio of its length and height.
.
I may not be around d answers. Lest I forget, hbd in arrears to princecalm.

BDD

please my little cousin applied for uniben ...Please wen z d post ume exam ...bis the form out?

TryAces:
Which of the following will be observed on adding conc. H2SO4 to sucrose crystals ?
A. a blue solid
B. a colourless solution
C. a char
D. an effervescence

sugarcial C

DoctorAB:
A man sits in a train moving with uniform speed in a straight track. If from his outstretched palm, he tossed a coin vertically upwards, the coin will fall
A. In front of his palm
B. Behind his palm
C. Into his palm
D. Beside his palm.
.
An object is projected with a velocity of 100m/s at an angle of 60 to the vertical. What is the time taken to reach the highest point.
A. 5s
B. 8.7s
C. 10s
D. 17.3s
E. 20s
.
The mechanical advantage of an inclined plane depends on
A. Its length
B. Its height
C. The product of its length and height
D. The ratio of its length and height.
.
I may not be around d answers. Lest I forget, hbd in arrears to princecalm.

BBD

@DoctorAB
BBD

when will post utme registration process kick-off?

blueto:
when will post utme registration process kick-off?

we dunno yet

The reaction involved in the decolourization of bromine water/vapour by unsaturated hydrocarbons ?
a. hydrogenation
b. addition
c. elimination
d. substitution

Why is carbon often deposited in the exhuast pipe of cars ?
a. presence of additives in petrol
b. complete combustion of petrol
c. presence of carbon in petrol
d. incomplete combustion of petrol

You guys only got Ouestion 3 o - D
.
Ouestion 1 says it moves with 'uniform speed' reason that part. When I was attempting it I chosed B but it wasn't the right answer.
.
Ouestion 2 is tricky - note that when dealing with vectors, if an angle is inclined to the horizontal, you use COS... to the vertical you use SIN but in the case of projectiles it's not so. To the horizontal you use SIN while to the vertical you use COS. The question says it was inclined to the vertical. So we use COS 60 or we say 90 - 60 = 30 i.e SIN 30 to the horizontal. Notice the difference. Now kill the question.

TryAces:
The reaction involved in the decolourization of bromine water/vapour by unsaturated hydrocarbons ?
a. hydrogenation
b. addition
c. elimination
d. substitution

Why is carbon often deposited in the exhuast pipe of cars ?
a. presence of additives in petrol
b. complete combustion of petrol
c. presence of carbon in petrol
d. incomplete combustion of petrol

BD

DoctorAB:
BD

u got both right congrats

TryAces:

we dunno yet

ok. but dont fail to notify me as soon as you are informed.

thanks for your attention

DoctorAB:
A man sits in a train moving with uniform speed in a straight track. If from his outstretched palm, he tossed a coin vertically upwards, the coin will fall
A. In front of his palm
B. Behind his palm
C. Into his palm
D. Beside his palm.
.
An object is projected with a velocity of 100m/s at an angle of 60 to the vertical. What is the time taken to reach the highest point.
A. 5s
B. 8.7s
C. 10s
D. 17.3s
E. 20s
.
The mechanical advantage of an inclined plane depends on
A. Its length
B. Its height
C. The product of its length and height
D. The ratio of its length and height.
.
I may not be around d answers. Lest I forget, hbd in arrears to princecalm.

A A D

DoctorAB:
You guys only got Ouestion 3 o - D
.
Ouestion 1 says it moves with 'uniform speed' reason that part. When I was attempting it I chosed B but it wasn't the right answer.
.
Ouestion 2 is tricky - note that when dealing with vectors, if an angle is inclined to the horizontal, you use COS... to the vertical you use SIN but in the case of projectiles it's not so. To the horizontal you use SIN while to the vertical you use COS. The question says it was inclined to the vertical. So we use COS 60 or we say 90 - 60 = 30 i.e SIN 30 to the horizontal. Notice the difference. Now kill the question.

You're talking about resolution of vectors. Please do not confuse yourself. Projectile equations do not have COS.

t=USinθ/g
T=2USinθ/g
H=U^2Sin^2θ/2g
R=U^2Sin2θ/g

TryAces:
The reaction involved in the decolourization of bromine water/vapour by unsaturated hydrocarbons ?
a. hydrogenation
b. addition
c. elimination
d. substitution

Why is carbon often deposited in the exhuast pipe of cars ?
a. presence of additives in petrol
b. complete combustion of petrol
c. presence of carbon in petrol
d. incomplete combustion of petrol

B,D

nolio:
B,D

correct

DoctorAB:
A man sits in a train moving with uniform speed in a straight track. If from his outstretched palm, he tossed a coin vertically upwards, the coin will fall
A. In front of his palm
B. Behind his palm
C. Into his palm
D. Beside his palm.
.
An object is projected with a velocity of 100m/s at an angle of 60 to the vertical. What is the time taken to reach the highest point.
A. 5s
B. 8.7s
C. 10s
D. 17.3s
E. 20s
.
The mechanical advantage of an inclined plane depends on
A. Its length
B. Its height
C. The product of its length and height
D. The ratio of its length and height.
.
I may not be around d answers. Lest I forget, hbd in arrears to princecalm.

C B D.......
Una well done ooo

The answer is C A D.

Brian10:

You're talking about resolution of vectors. Please do not confuse yourself. Projectile equations do not have COS.

t=USinθ/g
T=2USinθ/g
H=U^2Sin^2θ/2g
R=U^2Sin2θ/g

we are saying same thing bro. If it's inclined to horizontal u use sin. If the angle is inclined to the vertical and u use SIN you will never get the correct answer. An epitome is in the question above. So to get the angle to the horizontal u say 90 - 60 = 30. I.e sin 30 and not sin 60. To avoid the long process u can also say cos 60. Since cos 60 and sin 30 = 0.5, although I don't advise it.

Which of these is the simplest Protozoan? A.Amoeba B.Paramecium C.Salienta D.Microplasma