Ask a New Question
Search
Questions and answers by
Abdullahi
Questions (14)
A scientist discovers a fossil of an animal and places it in the fossil record. The organism's bones are similar to the bones of
1 answer
69 views
A stationary ball is hit by an average force 50n for a time of 0.03sec.what is the impulse experience by the body
1 answer
263 views
given that 2nd and the 3rd term of a geometric progression are 18 and 54 find the 5th term
1 answer
270 views
Dear sir/ma. Pls i need your help.
The 90 men that visited a restaurant take one of either pounded yam,rice and amala.10 take
1 answer
350 views
question: 90 men visit a restaurant take one of either pounded yam,rice and amala.10 take pounded yam and rice,19 take rice and
1 answer
394 views
Q:the 90 men that visit retaurant take one of either pounded yam,rice and amala.10 take pounded yam and rice,19 take rice and
1 answer
347 views
Q:the principal of a post primary school intend to select 30 student from the member of the school quiz teams. he decide to
1 answer
333 views
A bag contains 24 tennis ball, some are white and some are green. If a ball is chosen at random and probability chosen green is
1 answer
546 views
A unuform rod of mass 100g has a length a 1m.it is supported horixontally on two knife edges placed 10cm from its end. what will
1 answer
586 views
A car travels 30km due south and then 40km west, what is its resultant from the starting point?
1 answer
820 views
A swimmer whiches to swim with a speed of one metre square across anuer to a point a directly opposite him.there is uniform
1 answer
421 views
A body of mass 5kg is to be given an acceleration of 20m/s2.calculate the force required when acceleration is vertically upwards
2 answers
1,508 views
Consider the equation N2(g)+3NH2(g)---2NH3.what is the needed volume of nitrogen to react with 15cm3 of hydrogen?
2 answers
484 views
Two insulated charged metallic spheres A & B have their centres separated by a distance of 50cm in air. Calculate the force of
1 answer
878 views
Answers (11)
Yea why it's confusing
Lottery
Answer
Physics
Probability questions
Sampling scheme used is stratified sampling. In tabular form |No.of stdnts |samplesize Ss1: 100. (100/330)30=9.09 Ss2:150. (150/330)30=13.64 Ss3:80. (80/330)30=7.27 330 Add up the sample size=9.09+13.64+7.27=30.
A unuform rod of mass 100g has a length a 1m.it is supported horixontally on two knife edges placed 10cm from its end. what will be the reactions at thise supports when a 50g mass is suspended 30cm from one of the knife edges?
I just want to get the answer
No
The sum of two numbers is 82. Their difference is 24. Choose the system of equations that describes this situation. Solve by elimination to find the two numbers.
I think the answer is 17.5 that is the neede volume
