muhammad
Most popular questions and responses by muhammad
government
Highlight four limitations on the rights of a citizen
asked on April 12, 2017 
physics
Find the distance (measured in earth radii, RE) from the center of the earth to a point outside the earth where the acceleration of gravity due to the earth is exactly one ninth of its value on the surface of the earth.
asked on April 24, 2010 
Chemistry
How many moles of Fe3O4 are required to supply enough iron to prepare 0.442 mol Fe2O3?
asked on September 22, 2012 
Math
A ship, proceeding southward on a straight course at the rate of 12 miles/hr is, at noon, 40 miles due north of a second ship, which is sailing west at 15 miles/hr. a) How fast are the ships approaching each other 1 hour later?
asked on November 14, 2018 
chemistry
Sodium thiosulfate, Na2S2O3, is used as a fixer in photographic film developing. The amount of Na2S2O3 in a solution can be determined by a titration with iodine, I2, according to the equation: 2Na2S2O3(aq) + I2(aq) > Na2S4O6 +2NaI(aq). Calculate the
asked on March 2, 2014 
Psychology
Which of the following scenarios is the best example of negative reinforcement? a. Vanna fastens her seatbelt as soon as she gets in her car to stop the annoying alert sound. b. Drake no longer cuts class now that his parents confiscated his iPod. c. Maria
asked on February 26, 2017 
Psychology
7. Research examining the perceptual abilities of newborn and very young infants has: a) provided little information regarding the notion that infants experience a "blooming, buzzing confusion" b) tended to contradict the idea that infants experience a
asked on February 17, 2017 
Calculus
The base of a solid is the circle x2 + y2 = 9. Cross sections of the solid perpendicular to the xaxis are equilateral triangles. What is the volume, in cubic units, of the solid? 36 sqrt 3 36 18 sqrt 3 18 The answer isn't 18 sqrt 3 for sure.
asked on November 26, 2016 
Maths
There are fifty students in a class. In a 100 marks exam, 20 students scored less than 30 marks, 5 students scored more than 70 marks and the remaining scored between 30 and 70 marks. If passing score is 55 marks and 40% students have passed the test, what
asked on July 13, 2017 
PHYSICS
Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 28.0 in a direction 60.0 west of north. Jane walks 11.0 in a direction 30.0 south of west. They then stop
asked on March 7, 2012 
PHYSICS
A car of mass 1000kg travelling @72km/hr is brought to rest in a distance of40m find average stoping for nd time taken
asked on April 5, 2019 
Psychology
Which of the following scenarios is the best example of positive reinforcement? A. Maria now buys a different brand of cigarettes to get two packs for the price of one. B. Nate no longer arrives late at work following a reprimand from his boss. C. Drake no
asked on February 26, 2017 
Psychology
15. How might adolescents’ tendency to engage in such risky behaviors as unsafe sex and experimental drug use reflect brain development during childhood and adolescence? a) The limbic system does not develop fully until early adulthood; adolescents
asked on February 18, 2017 
Maths
Shopkeeper sells his goods at 20% above the cost price. What will be the percentage profit he will earn if he discounts the price by 10% and then offer a seasonal discount of 5%?
asked on July 13, 2017 
Calculus
The base of a triangle is decreasing at the rate of 2 cm/ min and the height is increasing at the rate of 1cm/ min. Find the rate at which the area is changing when the base is 8 cm and the height is 6 cm. Is the area increasing or decreasing at that
asked on November 25, 2016 
Physics
body is at equilibrium under the action of three forces.one force is 10N acting due east and one is 5N in the direction 60¡ã northeast . what is the magnitude and direction of the third force
asked on February 28, 2018 
Psychology
charles has been told by the doctor he has lung cancer that is beyond treatment. His doctor tells him that he will probably die within a year. Charles suddenly starts to laugh and tells the doctor that the lab must have mixed up the test results. Chalres
asked on February 17, 2017 
accounting
Identify several ways in which you currently use accounting information in your life as a student. Also identify several situations in which, while you are still a student, you might be required to supply financial information about yourself to others?
asked on February 6, 2011 
kuwait
You are camping with two friends, Joe and Karl. Since all three of you like your privacy, you don't pitch your tents close together. Joe's tent is 19.5 from yours, in the direction 21.5 north of east. Karl's tent is 41.0 from yours, in the direction 41.0
asked on March 7, 2012 
science chemistry
1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?
asked on November 5, 2012 
physics
A rocket carrying a satellite is accelerating straight up from the earth's surface. At 1.20 after liftoff, the rocket clears the top of its launch platform, 68 above the ground. After an additional 4.85 , it is 1.50 above the ground.Calculate the magnitude
asked on March 11, 2012 
Maths
The diameter of a bicycle wheel is 14 cm.What is the distance covered by it in 50 revolution
asked on January 24, 2017 
math
you are baking cookies. recipe 2 cup sugar 11/2 cup flour 2 eggs a you make one and onehalf batches of cookies, how many eggs have you used? Answer 2 eggs b Each batch makes 24 cookies. you make x batches of cookies but eat 5 cookies as you are
asked on November 18, 2015 
science chemistry
1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?
asked on November 5, 2012 
math
in a class there are 35 students.25 of the students can play basketball ,and 15 of the students can play football .5 of the students cannot play either of these.how many students can play both?
asked on January 17, 2014 
chemistry
how many sig figs in this number: 32.6721
asked on September 13, 2013 
physics
A ship leaves the island of Guam and sails a distance 280 at an angle 38.0 north of west.In which direction must it now head so that its resultant displacement will be 115 directly east of Guam? (Express your answer as an angle measured south of east) How
asked on March 7, 2012 
physics
The scalar product of vectors and is +53.0 . Vector has magnitude 6.00 and direction 28.0 west of south. If vector has direction 39.0 south of east, what is the magnitude of ?
asked on March 7, 2012 
Algebra 1
Alisha is paying $20 for a large pizza,which is 18 inches in diameter, a better buy than paying $5 for a personal size pizza that is 6 inches across?Explain
asked on December 21, 2016 
Calculus
The number of people expected to have a disease in t years is given by y(t) = A.3^(t/a) (i) If now (year 2016) the number of people having the disease is 1000, find the value of A. (ii) How many people are expected to have the disease in five years? (iii)
asked on November 29, 2016 
Calculus
Find the volume of the solid formed by rotating the region bounded by the graph of y equals 1 plus the square root of x, the yaxis, and the line y = 3 about the line y = 5.
asked on November 26, 2016 
Help plz👍😂
Hero in long way from Chicago book why
asked on August 12, 2014 
math
3/5+3/17= 2 1/2 1 0 need help
asked on October 27, 2017 
mathematics
If 24 out of 30 pupils in a class are present, what percentage of the pupils are present
asked on October 19, 2017 
university chemistry
the oxygen produce was colleced by displement method at (22c)at a total pressure of (754torr)the vapor pressure of water at (22c) in (21torr) calculate the pershel pressure of oxygen in the collected
asked on March 12, 2016 
Math
Emily hired a new employee to work in your bake shop. In one hour the employe burned 660 chocolate chip cookies. If this presented 13% of the days production, how many cookies did you plan on producing that day
asked on January 4, 2018 
Calculus
Determine the relative extremum for the function , f(x,y)=((x^2)+(y^2))(e^x)
asked on November 26, 2016 
Calculus
Find dz/dy for the following : xln(12y) = zsin((x^2)z)3y+z
asked on November 26, 2016 
Calculus
The number of people expected to have a disease in t years is given by y(t) = A.3^(t/a) (i) If now (year 2016) the number of people having the disease is 1000, find the value of A. (ii) How many people are expected to have the disease in five years? (iii)
asked on November 11, 2016 
Calculus
Two ants, red ant and black ant, creeping along lines in 3space. At time t, red ant is at point on the line x=3t , y2=2t , z2t=6 and at the same time t, black ant is at the point on the line 2x=t , y3t=2 , z=2+t a) Find the starting distance between
asked on November 11, 2016 
PHYSICS
A perfect gas at 415 degree centigrade. The volume remains constant at 20 cubic meters and pressure of 1750 Gauge. Calculate the final value of V2 AND T2
asked on October 30, 2016 
Chemistry
an ideal system absorbed some amount of heat and gas expand and the piston move to 0.4 meter against than the atmospheric pressure. If the cross sectional area of the container is 0.6 meter2. What is the amount of heat absorbed?
asked on March 3, 2015 
physics
Assume that there is no friction between m2 and the incline, that m2 = 1.8 kg, m1 = 1.4 kg, the radius of the pulley is 0.10 m, the moment of inertia of the pulley is 3.6 kg m2, and θ = 27.0°. Mass 1 is hanging vertically while mass 2 is on the incline.
asked on February 6, 2015 
math
Why 0!=1 Plz help me to prove this statement.
asked on April 11, 2014 
Annur mathematics
Approximate the followin. 1.2.7272to 2d.p
asked on December 5, 2012 
physics
a car of mass 'm'starts from rest and is driven with constant power.after some time it covers a distance 'x'.what should be the speed of car?how we can find the speed of car?
asked on April 25, 2012 
physics
Two vectors and have magnitude = 3.08 and = 3.08. Their vector product is = 5.07 + 2.00 . What is the angle between and
asked on March 7, 2012 
social studies
I have a few questions regarding the issue of jemaah prayer for women. We know that the prayers made in the masjidil haram is 100,000 times than other places. Yet, for a woman prayer in her house is better. 1. Does this mean that a woman’s prayer at home
asked on November 28, 2011 
religion
I have a few questions regarding the issue of jemaah prayer for women. We know that the prayers made in the masjidil haram is 100,000 times than other places. Yet, for a woman prayer in her house is better. 1. Does this mean that a woman’s prayer at home
asked on November 26, 2011 
math
Solve the following system of equations: 6x – 3y + 10 = 0 2x + y + 9 = 0
asked on May 15, 2018 
Calculus
Find dz/dy for the following : z=(e^xy)+2ycos(xy1)
asked on November 26, 2016 
english
what is the meaning of the phrases frightened the life out,got down on hands and knees and stuck his nose in the air
asked on October 17, 2015 
Pre Algebra
Find the product and write in lowest terms. 10/51.3/8
asked on March 12, 2014 
Ecology
I Have an assignment that requires me to design, write and carry out an analysis and a report of survey from beginning to end however, the confusing part it that it has to be done without any actual data i don't know how to start that. Please help topic is
asked on March 3, 2012 
physics
A rock is thrown off a cliff in the horizontal direction at a speed of 2.4 m/s. What is the magnitude of its vertical speed 0.38 s later?
asked on January 30, 2012

Chemistry
121.8=(0.6*121)+(0.4*x) 121.8=72.6+0.4x 49.2=0.4x x=123
posted on April 19, 2019 
physics
please
posted on October 16, 2018 
English
Can't think
posted on June 12, 2018 
physics
0
posted on March 2, 2018 
chemistry
Cciffhdiydgwd.jie
posted on February 24, 2018 
physics
1500*0.5=750 750+125=875
posted on November 8, 2017 
math
ms sue thats not helping
posted on October 27, 2017 
Chemistry
heife
posted on August 27, 2017 
Chemistry
the total number of electrons in sulphate ion are 32
posted on July 19, 2017 
Mathematics
LANATI
posted on March 23, 2017 
Psychology
I was right.
posted on February 26, 2017 
Psychology
I was right.
posted on February 26, 2017 
Psychology
Am I right? Sorry that is my question.
posted on February 26, 2017 
Psychology
I think it should be A.
posted on February 26, 2017 
Psychology
Thank you.
posted on February 18, 2017 
Psychology
Thank you.
posted on February 18, 2017 
Psychology
I think it should be B. But I am not 100% sure.
posted on February 18, 2017 
Psychology
Thank you.
posted on February 17, 2017 
Psychology
After reading the article I think it is B. Am I right?
posted on February 17, 2017 
Chemistry
Dear, DrBob, you mentioned 4 criteria for a chemical reaction it s absolutely wrong. these are few parameters to check a reaction has done or not, but not a reasons for reaction. NaF and NaCl do not react
posted on November 28, 2016 
Science
photosynthesis is a chemical reaction through which plant converted solar energy in to chemical energy, this chemical energy is stored in the form of carbohydrate (glucose) which is necssory for plant activities such as growth, maintains, survival etc the
posted on November 28, 2016 
Chemistry
sol.. ist you converted 250 ml in to liter, so it will be 0.25 l then (0.25l)(0.8 M)(169.87 g/mol) it will be 33.94 gram s0 33.94 g Agnitrate require to make 250 ml of 0.8 M sol of silver nitrate Or u can say that 250 ml of 0.8 M sol of silver nitrate
posted on November 28, 2016 
Calculus
Thank you steve.
posted on November 26, 2016 
critical thinking
Answer is option A ONLY...... AS AUXILIARY IS followed by a subject. A common sense!
posted on August 29, 2016 
English
Write a narrative composition title it does not pay to be lazy
posted on February 6, 2016 
math
n idea
posted on January 31, 2016 
History
please put up the right answers I need to check
posted on March 12, 2015 
CHEMISTRY
Ans= Pressure PCl3= 6.78 Torr Pressure PCl2= 26.4 Torr pressure PCl5= 224 Torr
posted on January 15, 2015 
Chemistry
a) [X]=[Y]=[Z]=1.0 m ans= net reaction goes to the right b) Px=Pz=1.0 atm, Py=0.50 atm ans=net reaction goes to the left
posted on January 15, 2015 
9th grade algebra
×+11=13
posted on October 16, 2014 
math
thanks
posted on April 24, 2014 
math
16:64=48:x 16/64=48/x 1/4=48/x by cross multiplication x=192 so you can buy 192inches of wire.
posted on April 11, 2014 
math
80
posted on March 30, 2013 
Physics
I am also in the VASTS program.My data is different, but they have the same concept.
posted on January 4, 2013 
math
divide both sides of equation by 9 x5=4x5 or 4x5=x5 add 5 and x on both sides 4x5x+5=x5x+5 3x=0 divide both sides by 3 3x/3=0/3 x=0
posted on April 25, 2012 
physics
Assuming you mean 18.1 cm. x = at^2/2 ==> t = sqrt(2x/a) a = g = 9.81 m/s^2 2x = 0.362 t = 0.1921 s. it is right but you enter 18.2 ok
posted on March 11, 2012 
physics
i forgot to put thanks a lot for your time
posted on March 7, 2012 
PHYSICS
In what direction should Ricardo walk to go directly toward Jane?
posted on March 7, 2012 
PHYSICS
What is the distance between them?
posted on March 7, 2012 
kuwait
thanks you so much
posted on March 7, 2012 
Ecology
I see what is if i try to assume data results, based on prior knowledge is that possible if so how would i do that can you please point me in the right direction. Thank you very much appreciate it.
posted on March 4, 2012 
physics
YO are you vlad from my geometry class, mr. schwaigoffer
posted on November 30, 2011 
hardware
hi i have a project to make a step by step tutorial on how to build a computer can i get help?
posted on March 13, 2011 
chemistry 1st year, for midterm help
PIEASE TELL ME HOW MANY MAKES THE QUESTION
posted on January 7, 2010