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Victor
Questions and answers by
Victor
, page 2
Questions (164)
A 30 g sample of water at 280 K is mixed with 50 g water at 330 K. Calculate the final temperature of the mixture assuming no
2 answers
883 views
Thirty feet of water exert a pressure of 1 atm. Calculate the pressure (in kPa) exerted on a diver at a depth of 50 feet on a
3 answers
540 views
In a coffee cup calorimeter, 2.00 g of potassium hydroxide are mixed with 200.0 g of water at an initial temperature of
2 answers
739 views
How many liters of CO2 would be collected over water from the bomcustion of 35g of cyclohexane, if the gas is collected at a
1 answer
445 views
A small, circular washer of radius a = 0.750 cm is held directly below a long, straight wire carrying a current of I = 13.0 A.
1 answer
717 views
How do you know where to plot the points of a cosine function on a graph? Is there a more simple way then plugging the x value
2 answers
496 views
A sample of Helium occupies 200 L at 30ºC under a pressure of 841 torr. What is the volume it occupies at standard temprature
4 answers
1,944 views
If a function is undefined at a point, can that point be in its domain? Explain.
2 answers
530 views
If the first term of an arithemetic progression is -4 and the twelveth term is 8,find the common difference.
1 answer
444 views
The resultant of two forces X and Y will be the greatest when the angle between X and Y is:
7 answers
1,315 views
A man spent one fourth of his monthly salary on rent, two fifth of the remaining on food and one sixth of still remained on
2 answers
640 views
How long does it take your money to double if it is left in an account for 20 years and earns 8.5% interest compounded
2 answers
505 views
A chord is 4cm from the centre of a circle of radius 7cm. Calculate (a)the angle subtended by the chord at the centre (b) the
4 answers
1,485 views
In the diagram,Q is SW of P R is NW of P ∆QPT is 165°.What is the bearing of T from P?
1 answer
362 views
In not less than 450 words,write an expository essay on the topic:the state of the nation(Nigeria)
10 answers
3,295 views
Please show me the working
It says the elastic band is used to hold seven of the same pencil what is the length of the band in
4 answers
867 views
calculate the resultant of five coplanar forces 10n
2 answers
661 views
A spring of natural length 30cm is stretched 35cm by a load of 15N, calculate the extension produced
2 answers
520 views
The mean height of three groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m, respectively. Find
4 answers
1,228 views
An investor puts 2,500 into a life insurance policy that pays 8.5% simple annual interest
1 answer
443 views
When the angle of eleviation of a sun is 30 degree. The shadow of a vertical tower is 20m longer than when the angle of
2 answers
505 views
the systolic blood pressure of MAAUN under graduate.student is distributed normally with arithmetic mean SD 140mmhg and 20mmHg
1 answer
310 views
Two forces whose resultant vector is 100newtons,are perpendicular to each other.if one of them makes an angle of 60degrees with
1 answer
243 views
Name two metals which form both soluble trioxocarbonate(iv) acid and soluble tetraoxosulphate(vi).
9 answers
2,920 views
What is the proper grouping to make the following statement true?
10^2 - 8 + 4 x 3 = 288
3 answers
475 views
A concert arranged to commence at 12 midnight on sunday in sydney(australia) 150 degree east is to be televised. When will a
7 answers
1,384 views
When it is 9:00a.m in munich,western germany(longitude 11 degree east),what will be the time in calcutta,india(longitude 96
1 answer
395 views
The sum of 4th and 6th terms of a geometric series is 80. If the product of the 3rd and 5th term is 256 determine first term and
6 answers
1,967 views
Which one is heavier?1mole of phd4,1mole oh h2 and 1 mole of PB(NO3)2
4 answers
371 views
The acceleration due to gravity on the moon is 1.6n/kg An astronaut weigh 670n on the earth surface . Find his mass
1 answer
270 views
The force of gravity on the moon is one sixth of that on earth . what would a mass of 50g weigh ..on the moon and on earth
3 answers
306 views
A triangular flower garden has a an area of 28 m2. Two of its edges are 14 metres and 8 metres. Find the angle between the two
4 answers
449 views
Explain the reasons of establishment of national instituition
1 answer
144 views
If the second term of a GP is 6 and the fourth term is 54 find the nth term
2 answers
163 views
X is partly constant and partly varies with y. When y = 5, x = 19 and when y=10, x = 35. Find the relationship between x and y
1 answer
85 views
A lamp 1000w,250v is lit for 5hours.if it operate normally and 1kwh of electrical energy cost #2,what is the cost of lighting
1 answer
139 views
Log10square root 35 + log10square
Root 2 - log10square root 7
1 answer
68 views
If 34 base x = 31 base 10
1 answer
51 views
If k+1 2k-1 and 3k+1 are three consecutive term of a Go find the value of the common ratio
1 answer
68 views
If k+1 2k-1 and 3k+1 are three consecutive term of a Gp find the value of the common ratio
1 answer
149 views
Find the 11 term of the progression 4 8 16 .....
1 answer
79 views
The first and last term of an AP are -3 and 145 , respectively .If the common difference is 4 Find the 12th ,25th and the number
1 answer
71 views
5 and 10 terms of an arithmetic progression and 0 and 10, respectively the 20 terms is
1 answer
49 views
Term
21 / 22 If a borrower can afford to make monthly principal and interest payments of 1,000 and the lender will make a 30-year
1 answer
94 views
Use the cylindrical shell method to find the volume of the solid obtained by rotating the region bounded by the curve
2 answers
128 views
A photograph print measuring 24cm by 15cm is enclosed in a frame A uniform space of width xcm is left in between the edges of
2 answers
102 views
Find the angle formed by the x axis and line whose equation is 6y-7x=22
1 answer
57 views
Find the angle formed by the x-axis and line whose equation is by 6y-7x=22
1 answer
70 views
The size of interior angles are 2x,1÷2x,x+40,2x+10,110,135,160,185find the value of x
1 answer
87 views
Find the value of p if the expression px^2-3÷2x+1÷16 is a perfect square ,given that p is constant
1 answer
106 views
Under an enlargement centre(2,1)the image p(1,1)is p'(4,5).determine the scale factor of the enlargement
1 answer
109 views
A mathematics club is made up of 10 boys and 15girls .The club has 3 officials.by the help of a tree diagram,find the
1 answer
68 views
What are interrogative pronouns
1 answer
51 views
The equation of a straight line ,l1 is 2y+8x-10.another line,l2 cuts l1 at right angles such that the point of intersection of
1 answer
105 views
In an examination involving 30 candidates,31 passed mathematics,29 passed physics,while 3 failed both subjects. How many
3 answers
109 views
9x+3(3x)+2=0
1 answer
19 views
q=D+is+partly+constant+and+partly+varies+with+v+when+v+=40,D=150,and+when+v=54,D=192+find the value of v when D =100
1 answer
76 views
Which of the following is true of the government of Switzerland? Explain why.
A. Nominal Federation with a figurehead leader B.
1 answer
33 views
Three qualities that can help Emma to archive her goals
1 answer
29 views
Find the 8th term of the exponential sequence whose first term is 3 and whose common ratio is 2
1 answer
22 views
If 3,p,q,24 are consecutive term of the arithmetic progression, find the value of p and q
3 answers
20 views
Bye let me sleep is there any app for this.
1 answer
17 views
Goodbye.
1 answer
18 views
Как развивалась порноиндустрия
1 answer
25 views
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