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poppy👌🤔
Questions and answers by
poppy👌🤔
Questions (78)
if a cell supplies a current of 0.5a when it's emf is 2v and internal resistance is 1 ohms calculate it's external resistance
4 answers
774 views
A is a solution of tetraoxosulphate (vi) acid, B is a solution containing 1.4g of potassium hydroxide per 250cm3.
using the table
4 answers
1,484 views
explain to me how Wx = Wsintitha instead of Wcostitha.
P= Wx + F where F= FRICTIONAL FORCE W= weight component along the
1 answer
294 views
Solve (50/32)raise to the power of -1 and 1/2?
2 answers
915 views
A gas occupies a volume of 150cm3 at 25degree celcius and the pressure of 80cm hg.
what will be the volume of the gas if the
4 answers
508 views
500 cm3 of a gas is collected at 0 degree celcius and at a pressure of 72.0 cm of Mercury.
what is the volume of the gas at the
4 answers
735 views
Two vertical parallel conductors X and Y are 0.12m apart and carry currents of 2A and 4A respectively in a downward direction.
Dr
1 answer
490 views
A car of mass 100kg travelling with a velocity of 20mls was suddenly brought to rest 20m after application of break, find the
4 answers
516 views
what is the difference between an object of mass moving up a smooth inclined plane and that moving up a rough inclined plane?
1 answer
421 views
Please tell me how to write these, if you have any idea.
Let's assume we are all connected by the oceans;can we work together to
2 answers
480 views
Give me some tips.
You are the most optimistic,connected generation the world has ever known,how can you use COMMONWEALTH
1 answer
344 views
Please if you have any idea on how to write these help me out.
"Family, Community,Nation, Commonwealth.What are the opportunities
1 answer
369 views
Which of The following statement is not correct about cathode rays.
Emerge at right angles to the cathode Travel in straight
1 answer
397 views
Please i need point on this topic both support and oppose, "glorious children are born or made"?
4 answers
372 views
A is a solution containing 0.095 mol/dm3 of trioxonirate(v) acid solution.
B contains 13.5g if X2 CO3 1OH2 per dm3. using the
5 answers
1,674 views
If (x-1),(x+1) and (x-2) are factors of the polynomial ax^3+bx^2+cx-1.
Find a,b and c respectively?
4 answers
1,187 views
In a carnival ride,passengers travel in a constant speed in a circle of radius 5m and make 1 complete revolution in 40s.
calculat
3 answers
716 views
velocity of light in air and glass are 3.0*10^8m^-1 inverse 1.8*10^8m^-1 respectively one is for air and one is for glass.
find
1 answer
427 views
A crate of mass 20kg was moved up a rough plane inclined at 60° to the ground. If the crate was moved up a distance of 5m after
2 answers
714 views
A spring s, is fimly fixed at one end A and allowed to lie parallel to a plane inclined at 60° to the horizontal. If a body of
1 answer
407 views
Please can you explain this type of stress to me:
In the following options lettered A to D, all the words except one have the
3 answers
432 views
5.0g of a mixture of caco3 and caO liberated 1.32g of carbon(4) oxide on strong heating .
what is the percentage of Cao in
5 answers
1,491 views
A tube of uniform cross sectional area closed at one end contain some dry air which is sealed by a thread of Mercury 15.5cm
3 answers
1,015 views
assume the specific heat capacity of water is 4.25lgk or 4200kj how many Joule is required to raise the temperature of 500g of
2 answers
525 views
A uniform plank PQ is 10m long and weighs 2.5KN. A downward force of 10N is 2M from the end P and upward forces of 5N, 3N and 8N
2 answers
595 views
describe an expirement to determine the specific heat capacity of the metal . state the precaution that should be taken and show
1 answer
482 views
A cylindrical container has a base area of 150cm.
It is filled with kerosene up to a height of 9cm. Find the volume of kerosene
7 answers
1,790 views
Word that has the same consonant sound with dance?
2 answers
1,045 views
Word that has the same consonant sound with plucked?
3 answers
722 views
how many demi semi quaver make a breve?
1 answer
359 views
Which of the bearing is equivalent S50ΦW
a). 040Φ b). 130Φ c). 220Φ d). 230Φ And explain?
1 answer
305 views
the height of a right circle cine is 4cm. the radius of its base is 3cm. find its curved surface area.?
1 answer
418 views
All of the following are quadratic equation except
a). y=x^2 3x b). y=4(x 2) c). y=8x^2-5 d). y=x(x 1)?
1 answer
263 views
The formula 2^2n-1 denotes the nthe term of a sequence. which term of the sequence is 2^21
a). 11th b). 6th c). 10th d). 8th?
1 answer
455 views
A number is selected at random from the set y=(18, 19, 20..........28, 29). Find the probability that the number is a prime.
a).
3 answers
521 views
the logarithm of nay number or alphabets to the base of itself equals?
a). zero. b). minus one c). the square of the number or
3 answers
616 views
if the molar mass if an acid is 40.0g/mol and it's concentration in grammes per dm cubic (g/dm^3) is 200.0. find its
4 answers
595 views
Solve 4x-6=14 use trial and improvement method?
1 answer
329 views
"When they are used properly" what is the grammatical name and it's function?
4 answers
677 views
the soldier picked _ his attackers one by one until at last they took to their heels
A) out B) off C)on D)along?
1 answer
251 views
the wavelength of ultraviolet radiation is 400nm. if the speed of light in air is exactly 3*10^8m/s, then the frequency of the
1 answer
399 views
the velocity ratio of an inclined plane whose angle is a I
a). VR=1/sinA b). VR=1/tanA c). VR=1/cosA d). VR=1/cotA?
1 answer
364 views
which of the following units is equivalent to kgm/s
a). n/s b). nms c). ns d). j/s?
1 answer
290 views
solve 3√12 10√3-6/√3?
1 answer
350 views
the identity tan^2Φ cos^2Φequals a). minus half b). plus one c). coT^2Φ d). tangentΦ e). all of the above?
1 answer
280 views
if a cell supplies a current of 0.5a when it's emf is 2v and internal resistance is 1 ohms calculate it's external resistance
a).
1 answer
410 views
in a class of 33 students, 18 play football, 12 play basketball and 7 play both games. How many students play none of the the
1 answer
464 views
the force (f) in Newton requires to male an kbject of m of mass q travelling with velocity (k) turns in circle of radius p is?
a)
1 answer
294 views
what is the resistance of a 240v, 60w electric filament bulb?
a). 0.25ohms b). 480ohms c). 60ohms d). 240ohms e). 960ohms?
1 answer
446 views
which of the following is true of an electric charge?
a). positive charge means deficit of electrons. b). negative charges means
1 answer
398 views
the identity tan^2Φ cos^2Φequals
a). minus half b). plus one c). coT^2Φ d). tangentΦ e). all of the above?
4 answers
317 views
find the value of of n for which 1/2n^2-13n 15 is not defined?
1 answer
294 views
given that loga 16 - loga 8=1 find a a). 4 b). 2 c). 10 d). 5?
2 answers
507 views
find the slope of the line 2y 5x=3 a). 5 b). -5/2 c). 2/5 d). 3?
1 answer
243 views
what value of q makes the given expression a perfect square?
a^2-8q q a). 2 b). 4 c). 8 d). 16?
3 answers
645 views
what is the resistance of a 240v, 60w electric filament bulb? a). 0.25ohms b). 480ohms c). 60ohms d). 240ohms e). 960ohms?
4 answers
2,017 views
in a class of 33 students, 18 play football, 12 play basketball and 7 play both games. How many students play none of the the
3 answers
654 views
the force (f) in Newton requires to male an kbject of m of mass q travelling with velocity (k) turns in circle of radius p is?
1 answer
278 views
find the equation of a line whose slope is 8 and pass through the point (-2,1)
a). y=8x-2 b). y=8x 17 c). y=9-2x d). y=x 6?
3 answers
495 views
simplify 9^-1/2/27^2/3 a). 1 b). 1/2 c). 1/9 d). 1/27?
1 answer
250 views
what value of q makes the given expression a perfect square? a^2-8q q a). 2 b). 4 c). 8 d). 16?
1 answer
349 views
if the probability that a candidate will fail his/her nursing entrance examination is 1/3 find the probability that he/she will
3 answers
410 views
when the price of an apple increase by #5.00, 18 apples cost #60.00 more than 20 apples cost before the increase. find the new
3 answers
355 views
if 158g of a gas at stp occupies a volume of 50.00dm^3.
what is the relative moat mass of the gas? (G M V at stp =22.4dm ^3 mold
1 answer
415 views
158g of a gas at stp occupies a volume of 50.00dm^3 ..what is the relative moat mass of the gas?
(G M V at stp =22.4dm ^3 mold )
2 answers
547 views
A source of light used for newton's ring experiment consist of two wavelength, wavelength 1 = 7500armstrong and wavelength 2 =
1 answer
495 views
In constructing a large mobile, an artist hangs an aluminum sphere of mass 6.0kg from a vertical steel wire 0.50m long and 2.5
3 answers
1,072 views
A uniform capillarity tube closed at one end contained dry air trapped by a thread of Mercury 8.5*10-2m long when the tube was
1 answer
519 views
Eminem,Lil Wayne and Chris brown are to share $142 such that Lil Wayne gets $11 less than Eminem and $7 more than Chris brown.
Ho
3 answers
423 views
By how much is the sum of 3 3/2 and 2 1/5 less than 7?
1 answer
267 views
The highest hm of a dock above sea level is given by h = 6+4cos(15p)° , 0?
1 answer
367 views
Find the gradient of xy^2 + x^2y=4xy at the point (1,3)?
4 answers
1,056 views
Simplify leaving your answer in terms of sin0(titha)
1 /1-cos0(titha) + 1 /1+cos0(titha)?
1 answer
360 views
An object is projected vertically upwards. It’s height hm at time t seconds is given by
h=20t-3/2t^2 - 2/3t^3, find: a) the
2 answers
588 views
The lower and super fixed point of a certain thermometer are 30cm apart.
At a certain clay the length of the mercury tread in the
2 answers
567 views
Triangle PQS and QRS are right angled triangles with angle PQS =angle SQR. find line QS,if line PQ is 36cm and line QR is 24cm.
(
4 answers
1,402 views
calculate refractive index of a material if the incident ray is two third the reflected ray which is 60°?
1 answer
405 views
A malaria patient has a body temperature of 103.1°F. The equivalent temperature in Celsius and Kelvin respectively are?
1 answer
402 views
