Waec 2022 Per Subject Subscription Price List
(i) Civic Education:WhatsApp: N600 | Pin: N500.
(ii) Computer Studies:WhatsApp: N600 | Pin: N500.
(iii) Commerce:WhatsApp: N600 | Pin: N500.

Waec 2022 Subscription Price List
(i) ALL SUBJECTS:Direct Mobile: N15,500 | WhatsApp: N13,000 | Pin: N12,500.
(ii) 9 SUBJECTS:Direct Mobile: N8,000 | WhatsApp: N6,000 | Pin: N5,000.
(iii) PER SUBJECT:Direct Mobile: N1,000 | WhatsApp: N600 | Pin: N500.

Neco 2022 Subscription Price List
(i) ALL SUBJECTS:Direct Mobile: N15,500 | WhatsApp: N13,000 | Pin: N12,500.
(ii) 9 SUBJECTS:Direct Mobile: N8,000 | WhatsApp: N6,000 | Pin: N5,000.
(iii) PER SUBJECT:Direct Mobile: N1,000| WhatsApp: N600 | Pin: N500.

Forward Subject Name, MTN CARD PINS, Phone number to:07062154881 via TEXT MESSAGE(SMS) ONLY. (WAEC DAILY/PER SUBJECT SUBSCRIPTION) KINDLY CLICK HERE FOR THE SUBJECT PRICES

•For daily/per subject subscribers, Always subscribe a day or two days b4 each exam!

™EXPOBITE UPDATES™

2020 WAEC Physics Theory/OBJ/Essay Questions and Answers

(1)
Original length Lo = 3m
Extension e = 310 = 3*3 = 9m
F×e
F = ke where k = 982.3NM-²
F = 982.3*9 = 8,840.7N
The five that produce the extension F = 8.840.7N

====================

(2a)
Metal flat plate: It is a collector of heat that converts the radiant solar energy from the sun into heat energy by the process of greenhouse effect.

(2b)
Thermal Insulator: It prevents loss of accumulated heat in the solar collector and thereby improves its absorption efficiency.

(2c)
Tubes: They are use to capture almost all the sun’s energy. It is the most effecient solar collector ====================

(4)

V∝ Tx μy
LT-∝(MLT-²)x(MLT-¹)y
LT-¹∝ m*L*T-²x x m y L-y
LT-¹∝ m(x+y)L(x-y)T-²x
Comparing
X-y=1
X+y=0
-2x=1
From equation 3
X=½
Putting x = ½ into (eq) 2
y=-½
Equation is
V∝ T½ μ-½
V∝ √T/μ
V= k√T/μ
Where k is constant
CLICK HERE FOR THE IMAGE =======================

(6)
Angle at horizontal θ = 30°
Time of light , T = 25sec
Velocity of projection u = ?
But T=2using sinθ/g
25= 2u*sin30/10
25=0.5u/5
0.5u=125
U=125/0.5
=250ms-¹
CLICK HERE FOR THE IMAGE

=====================

(8a)
A torque or moment of a couple is the product of one of the forces and the perpendicular distance between the lines of action of the two forces.

(8aii)
(i)The two forces must be equal
(ii)The two forces must be opposite parallel
(iii)They must be equal distance between them

(8bi)
Free fall is defined as the motion of the body where gravity is the only force acting upon it.

(8bii)
Height of tower H = 40.0m
Velocity v = 10.0m/s, time t= ? , g=10.0m/s

Using the relation
S= ut + 1/2gt^2
H= ut + 1/2gt^2
40= 10t + 1/2*10t^2
4= t + t^2/2
= t^2 + 2t – 8=0 ( solving quadratically)
= (t+4)(t-2)=0
t+4=0 or t-2=0
t= -4 or t=2

Thanks for ur concerned, I really appreciate your efforts

Thanks Expo bit

am not a waec candidate..i only registered neco..but i can see u guys are doing alot of work..thanks alot!

u people are doing well gratitude to u all