# Faisal

Most popular questions and responses by Faisal
1. ## Physics

An advertisement claims that a particular automobile can "stop on a dime". What net force would actually be necessary to stop an automobile of mass 850kg traveling initially at a speed of 38.0km/h in a distance equal to the diameter of a dime, which is

2. ## Chemistry

Given the balanced equation N2(g)+3H2(g)==>2NH3 Calculate: a)the volume H2 that reacts with 12L of N2 b)the volume of NH3 produced Iron 4L ofN2 c)the volume of N2 and H2 to produced 60L of NH3 Assume that all volume measurements are made under identical

3. ## Chemistry

Consider the reaction MnO2+4HCL===>MnCl2+Cl2+2H2O How many grams of MnO2 are required to produce 5.6 of Cl2 at stp?MnO2=87

4. ## Maths

A ladder of length 6 m leans against a vertical wall so that the base of ladder is 2m from the wall. calculate the angle between the ladder and the wall.

5. ## chemistry

Balance each of the following equations a)CH4+CL2......>CCl4+HCl b)AL(OH)3+H2SO4.....>Al2(SO4)3+H2O c)Fe+H2O......>fe3O4+H2 d)Al4C3+HCl......>AlCl3+CH4 e)C2H6+O2......>CO2+H2O f)P2H4.......>PH3+P4 g)S2Cl2+NH3......>N4S4+NH4CL+S8

6. ## Math

Find the equation for the set of all points p(x,y) if it is equidistant from (2,3) and the x-axis.

7. ## Chemistry

How many grams of sodium-hydroxide will react with 49g of phosphoric acid? H3PO4=98g/mol,NaOH=40/mol.The equation is:3H2O+Na3PO4

8. ## physics

A car travels from city a to city b at a constant speed of 60 km/h.A bus leaves city a 1h after the car and catches it as it enters city b.the distance betwen ehe cities is 240 km.what is the speed of the bus{assumed to be constant] during its journey

9. ## Math analytic

Find the slope-point form of the equation of a line perpendicular to the y-axis through (4,1).

10. ## Chemistry

An ideal gas originally at 0.8 atm and 77C was allowed to expand untel its final volume ,pressure and temperature were 600 ml ,0.4 atm and 27C.what was the initial volume

11. ## Chemistry

Determine the atomic weight of X in the following compounds a)8g XH4 occupy 44.8L volume at 237C and 380 mmHg pressure b)1.92g of X3 occupis a volume of 574 ml at 77C and 2 atm c)A O.326 gram of gas,C3X4 has a volume of 250 ml at100C and 76 cmHg d)A 3.12

12. ## physics

A police car moveing at 140 km/h is changing a lorry moveing at 120 km/h.If the initial distance betwen them is 500m,how many minutes later and at what distance from its initial position does the police carb catch the lorry

13. ## physics

A car travels from city a to city b at a constant speed of 60 km/h.A bus leaves city a 1h after the car and catches it as it enters city b.the distance betwen the cities is 240 km.what is the speed of the bus{assumed to be constant] during its journey

14. ## Analytic geometry

Find the equations of the medians of the triangle with vertices (4,5), (2,-1), and (0,7).

15. ## chemistry

Given the reaction 1/2 N2( g) + 3/2 H2 (g) ___> NH3 (g) +11.0kcal.Is this reaction exothermic or endothermic?

16. ## Chemistry

A gas occupied 870 ml under a pressure of 720 mmHg at a temperature of 17C ,the next day it was measured under a pressure 0f 750 mmHg at a temperature of 21C.what volume did the gas occupy under these condition

17. ## Analytic geometry

Find the equation of the line parallel to the line joining (-3,-1) and (4,-3) and having y-intercept 2.

18. ## chemistry

A 210 g iron bar is heated and then placed in 100. g of water in an insulated container. The water temperature increases from 21.2 °C to 53.3 °C. What was the initial temperature of the iron bar? (Specific heats: cFe = 0.449 J/gK; cwater = 4.184 J/gK)

19. ## Chemistry

If we add 25g oe calcium carbonat with 73g of Hcl.what is the volume carbon dixiode in litres.

20. ## physics2

6)Adam is running at an average velocity of 6 Km/h. How many meters would Omar run after 15 minutes?

21. ## physics

a hlicopter takes off and travles 300 km due north then returns to its landing field. what is its displacment?

22. ## physics4

8)A car is traveling at a velocity of 120 Km/h stops at a traffic light after 2 minutes. Calculate its acceleration in Km/min2 (Kilometers/minute2)

23. ## physics3

7)A bus leaves Dubai at 10 am heading towards Abu Dhabi. The bus is moving at an average velocity of 120 Km/h. At what time is the bus expected to arrive Abu Dhabi assuming that the two cities are 150 Km away?

24. ## physics

5)As the traffic light becomes green, a car starts to travels with an acceleration of 2.5 m/s2. Calculate the velocity of this car in km/h after 12 seconds of acceleratio

25. ## math

The difference between two natural numbers is 6.adding 10 to the twice of the larger number,we get 2 less than 3 times of the smaller number.find these numbers.

26. ## Math

Pls help me find the volume of rectangular prism: Width 23cm Height 8cm Length 14.2

27. ## Chemistry

If we add 25g oe calcium carbonat with 73g of Hcl.what is the volume carbon dixiode in litres.

28. ## Chemistry

Prepare 0.03 mole fraction solution of NaOH in water Total volume of solution is 100ml

29. ## st anns

from linear equation if the total bill of a house in delhi is rs 4000 for a month assuming that the consumption is x units as per delhi tariff slabs shown in the actual bill math otba solution

30. ## Algebra

A merchant blends tea that sells for \$5.00 a pound with tea that sells for \$3.00 a pound to produce 80 lb of a mixture that sells for \$3.75 a pound. How many pounds of each type of tea does the merchant use in the blend?

31. ## Chemistry

35.79 of cr2 (X2O4)3.6H20 contains 8.19H20.what is the atomic wight of x

32. ## Calculus

A function has f''(x) = 10 and has f'(4) = 0 and f(2) = 4. Find f(x).

33. ## math

in a hall tv runs from hours and 4 tube lights work n hours each frame an equation if the total number of units consumed is 4.8 find 3 solution of this equation

34. ## chemistry

3.429 X2 (SO4)3 contains 0.12 mol of oxygn tom.what is the atomic wight of x?

35. ## physics

two vhiles move in opposite dirctions to each other with constant speeds of 20 m/s and 30 m/s if the initial distance betwen the vehicles is 100 km. how many second later do they meet

1. ## GEOGRAPHY

If the time at town A ( longitude 75° W ) is 5pm on Friday. What will be the time and day at town B ( longitude 120° E ). Showing working clearly.

posted on July 15, 2019
2. ## Chemistry

How to prepare?

posted on October 21, 2016
3. ## Chemistry

9.8x10^13

posted on January 26, 2016
4. ## maths

i can't understand this method. how we can create 5?

posted on October 30, 2015
5. ## RE: PHYSICS

0.95

posted on October 23, 2015
6. ## Math

posted on October 25, 2014
7. ## Statistics

First one is the treatment has no effect

posted on August 10, 2013
8. ## science

Mass

posted on January 11, 2012
9. ## Science

Friction

posted on January 11, 2012
10. ## Biology

True

posted on January 11, 2012
11. ## Chemistry

it is polar

posted on November 26, 2008