Abdullahi

This page lists questions and answers that were posted by visitors named Abdullahi.

Questions

The following questions were asked by visitors named Abdullahi.

Two insulated charged metallic spheres A & B have their centres separated by a distance of 50cm in air. Calculate the force of electrostatic repulsion between them. If the charge on each is +5.0*10^-8c. The radii of A & B are negligible compared to their...

Consider the equation N2(g)+3NH2(g)---2NH3.what is the needed volume of nitrogen to react with 15cm3 of hydrogen?

A body of mass 5kg is to be given an acceleration of 20m/s2.calculate the force required when acceleration is vertically upwards (g=10m/s2)

A swimmer whiches to swim with a speed of one metre square across anuer to a point a directly opposite him.there is uniform current with the speed of zero point five Newton square find the direction in which the swimmer must head to do this.

A car travels 30km due south and then 40km west, what is its resultant from the starting point?

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 5/8.how many green ball are there in the bag.

Q:the principal of a post primary school intend to select 30 student from the member of the school quiz teams. he decide to select his team member from ss1, ss2 and ss3 with the following class member of 100,150 and 80 students respectively. use appropria...

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 amala,29 take pounded yam and X men take all the three menu.2X men take only one food item. how many men take: 1. exactly two of...

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 pounded yam and rice,19 take rice and amala and 29 take pounded yam and amala.x men take all the three menu.2x men each take only...

given that 2nd and the 3rd term of a geometric progression are 18 and 54 find the 5th term

Answers

The following answers were posted by visitors named Abdullahi.

I think the answer is 17.5 that is the neede volume

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 just want to get the answer

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?

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.

Probability questions

Yea why it's confusing