# Posts by Usman

Total # Posts: 30

**Math**

Let V and W be vector spaces and assume that T be a linear mapping from V to W. (a) Show that ker(T) is a subspace of V . (b) Show that range(T) is a subspace of W.

*November 19, 2016*

**Math**

A bag contain 5 white 7 red 5 black balls.if 4 balls are drwn one by one with replacmment tha probability that none is white

*September 20, 2016*

**Math**

x-y=5 x+y=7

*September 9, 2016*

**Chemistry**

What is the mass of 5mole of li(li=7)

*February 11, 2016*

**ics**

Chemistry,what is the k.e of 4 moles of nitrogen gas at 127 degree centigrade?

*November 12, 2015*

**math**

x = 36 y = 45

*November 12, 2015*

**qualitative techniques**

The following model is a simplified version of the multiple regression model used by Biddle and Hamermesh (1990) to study the tradeoff between time spent sleeping and working and to look at other factors affecting sleep: sleep=B_0+B_1 totwork+B_2 educ+B_3 age+u Where sleep and...

*October 22, 2015*

**statistics**

Two cards are drawn from a well-shuffled ordinary pack of 52 cards. The first card is replaced before selecting the second card. Find the following probabilities. (iii) One is King and one is queen (iv) Both are faced cards

*October 21, 2015*

**Triangles**

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 edge is 12 cm long.

*March 31, 2015*

**physics**

weight of helicopter is given so mass can be calculated as m = F/a = 3920/9.8 = 400kg. Upward Force on helicopter is causing it to go upward so: F = W + m*a F = 3920 + 400*2 F = 3920 + 800 F = 4720 this is the required Force...

*September 15, 2014*

**physics**

weight of helicopter is given so mass can be calculated as m = F/a = 3920/9.8 = 400kg. Upward Force on helicopter is causing it to go upward so: F = W + m*a F = 3920 + 400*2 F = 3920 + 800 F = 4720 this is the required Force...

*September 15, 2014*

**physics**

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 (heading) should she fly and how long the trip takes?

*September 10, 2014*

**maths-ARITHMETIC PROGRESSIONS**

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

*February 24, 2013*

**Physics**

A uniform rod of mass 100g has a length of 1m.it is supported horizantally on two knife edges placed 10cm from it end. What will be the reaction at these supports when a 50g mass is suspended 30cm from one of the knife edges?

*February 8, 2013*

**Physics**

A uniform rod of mass 100g has a length of 1m.it is supported horizantally on two knife edges placed 10cm from it end. What will be the reaction at these supports when a 50g mass is suspended 30cm from one of the knife edges?

*February 8, 2013*

**math probability**

a fair of dice each numbered 1to6 is tossed.find the probability of that

*September 23, 2012*

**engineering mechanics**

11.97m/s

*April 5, 2012*

**physics**

4332.51

*March 5, 2012*

**Quaid university usmanlatif3@gmailcom**

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

*January 16, 2012*

**Math**

A rectangular garden is to be fenced off and divided into 3 equal regions by fencing parallel to one side of the garden. 200 feet of fencing is used. find the dimensions of the garden that maximizes the total area enclosed. what is the maximum area?

*June 15, 2011*

**physics**

The resultant of two forces acting on the same point simultaneously will be the greatest when the angle between them is 180⁰ 45⁰ 0⁰ 90⁰

*April 19, 2011*

**physics**

If Fx = Fy then the angle è which the vector F makes with the horizontal is of 0⁰ 45⁰ 90⁰ 180⁰

*April 19, 2011*

**physics**

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 < D

*April 19, 2011*

**physics**

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

*April 19, 2011*

**5 of 90 lotto equation formula**

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 before try and get ...

*March 30, 2011*

**ENGLISH**

WHAT SHOUD BE NOW

*May 24, 2010*

**math**

2420 multiplay by 24

*January 8, 2010*

**social study**

the problem of marriage

*October 2, 2009*

**Math**

Hi All AoA I need help on Derivation of equation of ellips and hyperbola. Any article, site regarding my question plz?? Thanx Usman Since this is not my area of expertise, I searched Google under the key words "ellipse hyperbola equations" to get these possible ...

*March 7, 2007*

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