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emmanuel

Questions (55)

The first three terms of an AP are (x+2),(2x-5) and (4x+1).Find the value of x and the 7th term
1. 1 answer
2. 67 views
given that 105n=1112three find n where n is the base
1. 1 answer
2. 164 views
Write a letter to a friend who wants to visit your school giving him direction to your school and telling him two interesting
1. 2 answers
2. 430 views
what is the letter for the cell organelle nucleus
1. 0 answers
2. 244 views
a rectangular pyramid that measures 10cm by 7cm has a height of 11cm. Cal,side of the triangle
1. 2 answers
2. 1,211 views
an aeroplane leaves an airport,flies due north for two hours at 500km/hr.it then flies 450km on a bearing 053.how far is the
1. 2 answers
2. 1,048 views
Under what condition (if any) does a moving body experience no energy even though thereis a net force acting on it?
1. 1 answer
2. 409 views
Combining the statement written in question 19 with the mathematical statement of the 1stlaw of thermodynamics, show in not more
1. 0 answers
2. 445 views
Write a mathematical statement for the change in entropy, ds, for the case where no workis done irrespective of the path.
1. 0 answers
2. 410 views
A mass of ideal gas of volume 400 cm3 at a temperature of 27 ˚C expands adiabaticallyuntil its volume is 500 cm3. Calculate the
1. 0 answers
2. 809 views
The density of a gas of relative molecular mass 28 at a certain temperature is 0.90 kgm-3.The root mean square speed of the gas
1. 0 answers
2. 474 views
A water vapour thermometer is calibrated at the ice and steam points and the saturationvapour pressures (s.v.p) are measured.
1. 0 answers
2. 690 views
A woman is unhappy with the rate at which eggs cook in a saucepan of boiling water. Statein 2 words only, the method she could
1. 0 answers
2. 550 views
why an ice cube at 0 ˚C is more effective in cooling a drink thanthe same mass of water also at 0 ˚C
1. 1 answer
2. 587 views
h(t)=cot ta.) [pi/4,3pi/4] b.) [pi/6,pi/2] Find the average rate of change of the function over the give n interval and
1. 3 answers
2. 6,547 views
How Does exponential growth affects the 5 scientific principles of sustainability,reliance of solar
1. 0 answers
2. 554 views
three identical point charges each Q coulombs are placed at the vertices of an equilatwral triangle 20cm apart.calculate the
1. 0 answers
2. 865 views
A catapult used to hold a stone of mass 500grammes is extended by 2cm with an applied force F. if the stone leaves with a
1. 0 answers
2. 519 views
The electrons in the d–orbitals – are they from the metal or the ligands.why?
1. 2 answers
2. 506 views
The molar constant-pressure heat capacity of a certain solid at 4.2 K is 0.43 J K−1 mol−1. What is its molar entropy at that
1. 0 answers
2. 605 views
60 cm of hydrogen diffused through a porous membrane in 10 minutes. The same volume of gas G diffused through the same membrane
1. 2 answers
2. 1,424 views
A block of wood is weighed on a beam balance.its mass is 54g.The density of the block is1.8g/cm`3.Find volume
1. 5 answers
2. 1,133 views
A measuring cylinder contains 50cm`3 of water.A stone has a mass of 1.75g.The stone is lowered into the cylinder, the level of
1. 1 answer
2. 1,194 views
what is the length of a simple pendulum that has a period of 2.8 seconds (g=10)
1. 1 answer
2. 903 views
Find the median of 3,6,10,13, 14,17,19 and 22
1. 1 answer
2. 364 views
Find the lenght of a rectangle if the perimeter is 48 and width is 8
1. 1 answer
2. 374 views
prove that if U and W are vector subspaces of a vector V, then UV, is a vector subspace of V
1. 0 answers
2. 462 views
how can i proove that every vector norm on C subscript n is continuos in the vector components the set of complex numbers
1. 0 answers
2. 388 views
let V=R^3 and S={e1,e2,e3}.prove that S is a basis of V
1. 0 answers
2. 328 views
let V be set of all functions with down R which are such that f(t)=Acost +Bsin t,t c R, where A and B are real numbers. define
1. 0 answers
2. 522 views
3 identical point charges each one micro coulomb placed at vertices of an equilateral triangle 10cm apart calculate the force on
1. 2 answers
2. 1,900 views
find the expression in terms of n of the nth term of following squences5,13,32,69,129,221....help plz show it work
1. 2 answers
2. 370 views
find an expression in terms n of the nth term of the following sequence 5,13,32,69,129,221......help
1. 0 answers
2. 429 views
A grocery store has three checkout lanes (checkout 1, 2, and 3), each with a single checker. Shoppers arrive at the checkout
1. 1 answer
2. 1,415 views
i am a grade 11 learne,i cant choose the that is good for me from the following subject history,geography,life
1. 0 answers
2. 723 views
what is adverb called in igbo
1. 2 answers
2. 506 views
A body of mass 20kg moving with a velocity of 8m/s collides with a stationary body of mass 10kg and the two stick together.They
1. 2 answers
2. 1,151 views
a ball thrown vertically from the ground level hits the ground after 4secs.calculatethe maximumheight it reachedduringit's
1. 2 answers
2. 619 views
a car travels at uniform velocity of 20m/s for 5 seconds, the breaks are then applied and the car comes to rest with uniform
1. 4 answers
2. 816 views
define literature
1. 1 answer
2. 575 views
Add the odd numbers divisible by 3 lying between 200 and 400.is arithmetic or geometric progression.
1. 1 answer
2. 510 views
A spiral spring of natural length of 30.0cm and a constant force of 20N/m is compressed to 20cm. Calculate the energy stored in
1. 1 answer
2. 581 views
A spiral spring of natural length of 30.0cm and a constant force of 20N/m is compressed to 20cm. Calculate the energy stored in
1. 2 answers
2. 1,657 views
a body of mass 25kg moving at 3m/s on a rough horizontal floor is brought to rest after sliding through a distance of 2.5m on
1. 11 answers
2. 4,351 views
ratio 1,5 hours 50 min
1. 1 answer
2. 299 views
factorise fully:5x^2+11x+2
1. 1 answer
2. 493 views
Hi, i'm seriously need your help on this subject just to explain the basics, chapter by chapter. i registered a part-time
1. 0 answers
2. 397 views
B. Everyone knows that water is supposed to boil at 100° C. Why did your water sampleboil at a different temperature? C. While
1. 2 answers
2. 1,444 views
what is the ph of a 2.0M solution of a strong acid?
1. 1 answer
2. 360 views
what are the choices of career in home economicsinfluence of orientation in home economics
1. 4 answers
2. 932 views
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At
1. 1 answer
2. 800 views
How research methods are used to determine causes and solutions to psychological or work problems
1. 1 answer
2. 443 views
the three things that describe and difine what enviorment is ?
1. 2 answers
2. 1,038 views
if you have to build a pool of 72 yards in your yard,and the construction company wants you to choose the dimentions (lenth and
1. 1 answer
2. 457 views
what is the population of Ithaca,New Yorknot sure, go to google or askjeeves or some other site, and type in that question. i'm
1. 0 answers
2. 459 views

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