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poppy
Questions (33)
find the triple product of (A*B).C given that A =i + 4j, B=2i - 3j and C = i + k?
1 answer
1,068 views
An oil company has to pay $10000 per year starting one years from today on a loan obtain for 5 years at an effective interest
0 answers
415 views
2x-3y 2=x 2y-5=3x y?
0 answers
317 views
solve 2x-3y plus 2 equals x plus 2y minus 5 equals 3x plus y?
1 answer
643 views
A curved surface of a cone, based diameter 18cm, is formed from a sector of a circle, radius 15cm. find
(a) the angle of the
2 answers
998 views
solve 2x-3y 2=x 2y-5=3x y?
2 answers
612 views
1.find x and y if 3 raise to the power 2x-y equals 1 and 16 raise to the power x divided by 4 equals 8 raise to the power 3x-y
2.
2 answers
932 views
An airplane travel 1000k/h in a region where the Earth's magnetic field is about 5*10-5T.
what is the potential diffenrence
1 answer
550 views
An average of 120KW of electric power is sent to a small town from a power plant constant 10km away.the transmission lines have
2 answers
3,650 views
A 20V supply is connected with a resistor of 4.0A/s 200ohm in an a.c circuit find the phase angle in the circuit?
1 answer
436 views
how long will it take for a 1.5A current to coat evenly a layer of copper 0.1mm thick on both sides of a 12cm by 12cm copper
1 answer
1,009 views
charges of +2uc,+3uc,and -8uc are placed at the vertices of an equilateral triangle of side 10cm.
calculate the magnitude of the
1 answer
2,868 views
A potentiometer circuit consists of a battery of e.m.f 5v and internal resistance 10 ohms connected in series with a 30 ohms
3 answers
1,756 views
A reistance thermometer has a resistance of 20w at 0°c and 85w at 100°c if it resistance is 52w in medium calculate the
5 answers
872 views
An electric heater with a p.d of 240V connected across its terminals has a total resistance of 950Ω .
Find the power rating of
2 answers
541 views
During electrolysis, 2.0 g of a metal is deposited using a current of 0.4A in 6 hours. The mass of the same metal which can be
1 answer
586 views
3x=16 solve for x?
1 answer
388 views
If the relative density of gold is 18.2, the volume of 2.4kg of gold is
[Density of water = 103kgm-3]?
1 answer
407 views
The average of x,3,(x-n)5 and (2x-2)is 5, find the value of x?
1 answer
389 views
If a force of 40N stretches a wire from 20m to 20.02m, what is the amount of force required to stretch the same material from
2 answers
511 views
Given three capacitors 0.3uF, 0.5 uF and 0.2 uF, the joint capacitance when arranged to give minimum capacitance is?
1 answer
1,116 views
a child desires to reach a point that is 3.4km from its present location and in a direction that is 35° north of east.however,
2 answers
557 views
factorize 6x^2-8x+3?
1 answer
367 views
A glass bottle full of mercury has mass 500g. On being heated through 35 degree census, 12.43 gram of mercury expelled.
2 answers
1,172 views
The number whose log is 2.9030 is?
3 answers
975 views
The ice point of an ungraduated mercury in glass thermometer is x while it stem point is 90°This thermometer read 60°when the
1 answer
790 views
[x^2/2 -x 1/2] [1/x -1]?
1 answer
426 views
A rocket of 30000kg mass acquires a speed of 2000k after takeoff. The power expended during this time is in 1minute?
2 answers
586 views
25.0cm3 of a solution containing 2.0g of NaOH per 250cm3 of a solution of H2SO4 for complete neutralization. Calculate the
1 answer
502 views
CuSO4 + K3Fe(CN)6 = FeSO4 + K3Cu(CN)6
What is the color of 1. K3Fe(CN)6? 2. K3Cu(CN)6?
1 answer
407 views
A man exerts a pressure of 2.8 * 10³Nm^-2 on the ground and has 4 * 10^-2m² of his feet in contact with the ground. The weight
1 answer
517 views
A body of mass 20g is suspended from the end of a spiral spring whose force constant is 0.5N/m. The body is set into a simple
2 answers
2,062 views
Resolve 5x-7/(x-1)(x-2)(x-3) into partial fraction using comparison coefficient method.pls i need ans asap with workings thanks
1 answer
690 views
