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usman
Questions and answers by visitors named
usman
Questions (19)
the problem of marriage
1 answer
345 views
2420 multiplay by 24
1 answer
306 views
How much power is used by a 50Kg athlete in climbing a 10m high ladder in 9.8 sec?
1000 J 2000 J 3000 J 4000 J
4 answers
426 views
A man moves along a semi-circle. What is the relation between distance covered (S) by him and his displacement (D)?
S = D S > D S
1 answer
477 views
If Fx = Fy then the angle è which the vector F makes with the horizontal is of
0⁰ 45⁰ 90⁰ 180⁰
2 answers
897 views
The resultant of two forces acting on the same point simultaneously will be the greatest when the angle between them is
180⁰
3 answers
995 views
a piolet wishes to fly to a city 1.20*10^3 km/h(N30E) of her present position .There is a wind of 72km/h(E),what direction
1 answer
397 views
Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its
2 answers
575 views
Two cards are drawn from a well-shuffled ordinary pack of 52 cards. The first card is replaced before selecting the second card.
3 answers
919 views
The following model is a simplified version of the multiple regression model used by Biddle and Hamermesh (1990) to study the
1 answer
851 views
Chemistry,what is the k.e of 4 moles of nitrogen gas at 127 degree centigrade?
1 answer
329 views
find the cost of 8 books when 6books cost 48$ given that the price of each book is same
1 answer
374 views
three angles of a nonagon are equal and the sum of six other angles are 960°.calculate the size of the equal angles.
2 answers
492 views
sum of angles in a nonagon
2 answers
498 views
what is the amount to be paid if compound interest is calculated on 500.00 for 2 years at 10%
1 answer
355 views
A flea is very difficult for the human eye to see. Jose looks at a drawing of a flea in a book.
The drawing uses the scale 5:1.
2 answers
514 views
A man hold a child on his shoulder which watching a football how much work has he done if the for two hour.
1 answer
201 views
How much heat energy is needed to change 3g of
ice at 0C to steam at 100C(Specific latent heat of fusion of ice=336kj/kg,
3 answers
448 views
calculate the distance between lagos 4degrees newton and cairo 30degrees newton
4 answers
266 views
Answers (13)
i dont no
How much heat energy is needed to change 3g of ice at 0C to steam at 100C(Specific latent heat of fusion of ice=336kj/kg, specific latent of vapourization of water=2260kj/kg, specific heat capacity of water=4.2kj/kgk)?
I know you will take for me.
90kj
A boy stands at the edge of a cliff and launches a rock upward at an angle of 45.0o . The rock comes back down to the elevation where it was released 2.25 s later, then continues until it is seen to splash into the lake below 4.00 s after release. How far
A uniform metre rule
can I see the steps
(a)150/108=a/30 108*a=150*30 150*30/108 75*15/27 1125/27 41.66 (b)108/a=30/20 3a=10821*2 108*2/3a 216/3=72
kindly get the current position on board for any 5 of 90 lotto and make a thorough research on already drawn results compare the results with the current result you are having on board,no new numbers in lotto any number to be play has already been played
a fair of dice each numbered 1to6 is tossed.find the probability of that
The fourth and eleventh terms of an A.P are respectively,11 and 32. Fine the A.P what is the sum of the first eleven terms of the series
50 ml of sample solution+10ml of 6M acetic acid+10ml of 3M of Ammonium acetate+heat to boiling+slight excess of 10% ammonium chromate solution+cool+filter+wash the ppt+weight+calculate the ba % in bacro4
11.97m/s
