Prince
Most popular questions and responses by Prince
Math
A solid body consists of a cylinder surmounted by a hemisphere of the same radius. The total length of the body, measured along the central axis of cylinder, is 10cm. If the radius of the hemisphere is xcm,show that the volume vcm^3, of the solid body is
asked on October 22, 2017 
Physics
Earth has a mass of 5.97x10^24kg and a radius of 6.38x10^6m. Find the wight of a 65.0kg person on the surface of the earth and 1000km above the surface of earth?
asked on January 11, 2011 
math
what did the teacher do with ogar's cheese report
asked on February 18, 2009 
Chemistry
What is the solubility of a salt x at 25'c ifthe saturated solution of the salt contain 0.28g in 100cm3 of the solution.
asked on June 5, 2019 
Physics
a piano string has a length of 2m and a density of 8,000kg/m3. when the tension in the string produces a strain of 1%, the fundamental note obtained is 170 Hz. calculate the modulus of elasticity for the material of the string.
asked on October 18, 2016 
Math
Without using calculator,evaluate Sin15 deg,Cos 15 deg,Sin 75deg. O need the answer urgently pls.
asked on November 14, 2011 
Chemistry
calculate the theoretical number of moles of HCl equivalent to 1 mole of a) NaHCO3 b)CaCO3 c)Al2O3
asked on December 9, 2010 
math
how do you find the diameter of a circle if you don't have the radius? the circumference is 628 cm. Divide the circumference by pi, which is 3.14 (approximately). That will give you the diameter. Circumference = pi * D
asked on February 15, 2007 
PHYSICS
A CAR TRAVELLING AT 30M/S Overcome A FrictionAlly Resistance Of 100N While Moving.What Is The Power Of The Engine(Take 1 Hp=3/4 Kw)
asked on January 27, 2016 
Mensuration
A carpet is laid around a rectangular dance floor measuring 10m by 8m.if the width of the carpet is 2m,find its area.
asked on December 18, 2016 
life orantation
evaluate the extent to wich the service delivery protest met?
asked on May 23, 2015 
PHYSICS
A UNIFORM METER RULE IS PIVOTED AT P IN 80cm mark on the meter rule force 0.2 And 0.8N Are Applied At M The 60Cm Mark And Q The 90Cm Mark.If The Rule Is In Equilibrium .Find The Mass Of The Rule.Take g=10ms2
asked on January 27, 2016 
St.Peter's Boys Senior High School
In a class of 500 students,60 study geography,40 study English,30 study geography and history,25 study English and history,if 10 study all the three subjects,find using venn diagram the number of students who study none of the three subjects.
asked on August 24, 2015 
Chemistry
How many milligrams of NaHCO3 are in a 500mg tablet if 40.0 mL of 0.120M HCL is required to neutralize the sample?
asked on December 9, 2010 
MATH
there are 120 question, 1 mark for a correct answer,  1/2 Mark for wrong answer,  1/4 Mark for unattempted question. Of 5 mark will get, then how many are incorrect answer.
asked on April 20, 2019 
physics
a mass of 15kg was suspended from a ceiling is pulled aside with a horizontal force,F, calculate the value of tension, T. (g=10m/s)
asked on September 27, 2015 
Western Civilization to 1648
1. Discuss how Alexander the Great created an empire in which Greek civilization flourished in the midst of many diverse cultures. 2.Discuss how the Greek city state developed in the farmework of larger word dominated by Persia. 3. Discuss the political,
asked on April 18, 2010 
Economics
Why is the south african government is not providing enough welfare on subsidies to the poor and underpriviledged?
asked on May 4, 2014 
mathematics
find the 8th term of an A.P 3,1,1
asked on April 28, 2013 
mathematics
what value of k makes the given expression a perfect square?M square 8m+k
asked on April 28, 2013 
life orientation
Topic:the practice of highrisk sexual behaviour amongst the adolescence. Describe the life style behaviour and explain 5 factors
asked on June 1, 2011 
Chemistry
a 15.00mL sample of NaOH was titrated to the stoichiometric point with 17.40mL of 0.2340M HCl. a) what is the molar concentration of the NaOH solution? b)calculate the grams of NaOH in the solution.
asked on December 9, 2010 
Math
Old McDonald has cows and chickens on his farm. If the animals on his farm have a total of 197 heads and 634 legs, how many cows does Old McDonald have? Note: A cow has 1 head and 4 legs. A chicken has 1 head and 2 legs.
asked on September 22, 2013 
science
If the half life period of a radioactive element is 1600.After how many years will if remains 25% of his quantity
asked on April 11, 2015 
Chemistry
how many milliliters of 0.250M KOH will react with 15.0mL of 0.305 M H2SO4?
asked on December 9, 2010 
physics
dahnay carried a box (5,4)m.the box had a mass of 5kg.dahnay says that over 300J of work was done on the box . is dahnay correct?explain the answer.
asked on March 16, 2015 
physics
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.87 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?
asked on February 15, 2015 
math
lf the first of an AP is 7 and 80th term is 393,find the sum of the first 80 terms
asked on March 30, 2016 
math
3^{2x+3}4^{3x+1}+1=0
asked on February 7, 2019 
Maths
In trapezium ABCD,AB=14cm,AD=10cm,DC=xcm &distance between AB &DC is 8cm. find the value of x & area of the trapezium ABCD
asked on January 10, 2018 
physics
A 40 N force is applied at an angle of 30o to the horizontal to pull a 6 kg box along the floor. If the coefficient of friction between the box and floor is 0.3.The box initially at rest moves a horizontal distance of 5m. What is the speed of the box when
asked on November 8, 2015 
Augusco
The speed of a car weighing 1500kg increase from 40m/s to 50m/s.calculate the change in its momentum
asked on August 18, 2015 
Math
A trees shadow is 32 feet long how tall is the tree?
asked on November 25, 2014 
Chemistry
Potassium chlorate is 75% pure 48 gram of oxygen would be produced from how much potassium chlorate
asked on June 28, 2018 
physics 2
How much higher will mercury stand in the open arm in a JTube manometer, if air column in the closed arm is reduced to 4 cm, the mercury id at the same level in both open and closed arms when the air column in the closed arm is 15 cm long. Assume
asked on December 4, 2016 
science
30 ml KMnO4 solution is required to titrate 25 ml M/50 oxalic acid solution.find the molarity of KMnO4 solution and g/L also.
asked on October 25, 2013 
Physics
A body is dropped from rest from a height of 8m. How long does it take to reach the ground?
asked on January 28, 2017 
Math
The sums of n terms of two arithmetic series are in ratio of 2n+1:2n1. Find the ratio of their 10th terms.
asked on November 25, 2016 
Trigonometry
a) The ship left the port and sailed for 2 hours on a course of 75 degrees,at an average speed of 2.5 nautical miles per hour. !@#$%^&anged its course to 165 degrees and travelled for 3 hours, at an average speed of 4 nautical miles per hour. Your team is
asked on September 23, 2016 
Math
Explain how to find 14 x 19 by breaking apart the factors in tens and ones and finding the sum of the four parts
asked on January 21, 2013 
Maths
Jason’s credit card’s beginning unpaid balance for August is $2,000. During the August billing cycle he made a payment of $200 and used card to purchase $50 worth of grocery. Credit card charges 24% annual percentage rate and uses the unpaid balance
asked on September 20, 2011 
Elevation and depression
From the top of a tower 60m high, two ships are seen in a direction due south. The angle of depression of the ships from the top of the tower are 45degre and 30degree. Find the distance between the ships
asked on August 16, 2018 
math
A parabola f intersect the x axis at B and C and the yaxis at E.The axis of symmetry of the parabola has equation x=3.The line through E and C has equation g(x)=x/27/2. Calculate the x coordinate of B
asked on March 21, 2017 
math
An elastic spherical ballon is being blown up so that the radius is increasing at a rate of 1cm/sec. Calculate the rate at which the volume of the ballon is increasing when the radius is 5cm
asked on April 21, 2016 
Physics
how long does it take a car to change its velocity from 15m/s to 25m/s if it accelerates uniformly at 5m/s2.
asked on November 23, 2015 
math
Francine can read 24 pages in 30 minutes.How can you mentally calculate the number of pages she can read in 45 minutes
asked on February 5, 2015 
Economics
What are the cost and consequences of providing the subsidies and welfare?
asked on May 5, 2014 
Math
Determine whether ~ [ ~(p v ~ q) p v ~ q. Explain the method(s) you used to determine your answer i would use a truth table
asked on January 24, 2007 
topics wrting in english
. in one of the periodic publications of the country, whose language is studied, you read article about the liquidation of zoos in the large cities. You converse with your friends: 1) describe to them about that read, say, what the title of article was; 2)
asked on December 31, 2006 
Trigonometry
a) The ship left the port and sailed for 2 hours on a course of 75O, at an average speed of 2.5 nautical miles per hour. b) North It changed its course to 165O and travelled for 3 hours, at an average speed of 4 nautical miles per hour. Your team is tasked
asked on September 23, 2016 
maths
Solve 2m^2+5m20=0 using quadratic formula
asked on September 7, 2016 
PHYSICS
A BODY OF 50N Rest On A Smooth Plane Incline At 30 Degree To The Horizontal Which Force Applied Parallel To The Plane Will Keep The Body In Equilibrium
asked on January 27, 2016 
PHYSICS
A BLOCK OF WOOD REST ON AN INCLINE PLANE AND THE COEFFICIENT OF FRICTION BETWEEN THE BLOCK AND THE PLANE IS KNOWN TO BE 0.31 At What Angle Must The Plane Be Inclined To The Horizontal So That The Block Begins To Move Down The Plane
asked on January 27, 2016 
life orientation
Three environmental health hazards that cause ill health
asked on April 30, 2013 
Math
Draw the graph of the following function on the given interval. [4 marks] y=1.8cos(2x+〖30〗^o ) 〖180〗^o≤x
asked on January 21, 2013 
Math
2. A propeller on a gas turbine rotates 64° every 2.70 minutes. What is the angular velocity in rev/s? What is the linear speed of a point at the tip of the blade if the diameter of the blade is 5.37 ft?
asked on January 21, 2013 
Math
1. Find the area of a segment of height 22.1 inches in a circle of radius 6.42 ft. Draw a rough sketch of a circle showing the height and radius. Consider significant digits.
asked on January 21, 2013 
Chemistry
How to find the molarity of NaOH when the given is 0.1803 grams of KHPg/mol molecular w. of KHP is 204.2 9.7 ml NaOH
asked on December 9, 2010 
Math
If one apple and two pears cost $1.55 and two apples and two pears cost $2.30, how much does one apple cost?
asked on December 8, 2010 
business
Explain how Hershey's uses flexible manufacturing to meet customer demands
asked on August 16, 2008 
Maths
John and Kathleen are fertilizing their 13,000 square foot lawn,One bag of fertilizer covers 5,000 square feet.What is the fewest number of bags they need to purchase to fertilize their lawn ?
asked on February 28, 2017 
math
Every Saturday,mother and Claire go to the market.On each marketing day,they spend 3 hours including the travel time.What fraction of the day is used in marketing every Saturday?
asked on October 10, 2016 
Math
Ali has 4 mangoes,Joe has 3 how many more mangoes does Ali have
asked on May 11, 2016 
PHYSICS
PLEASE POST MY ANSWER
asked on January 27, 2016 
math
45% of a class are girls if these are 40 chidren in the class how many are boys?
asked on January 20, 2016 
Physics
The truck of a passenger car applies brakes at a velocity of 30 m/s and comes to rest 5 seconds later. What is the deceleration?
asked on November 23, 2015 
Algebra
Each day, a lion in South Africa spends 1/6 of the day watching gnus and 1/4 hours chasing gnus. Then the lion takes 4 times as much time consuming the gnus as chasing the gnus. What is the number of minutes that a lion spends a day watching, chasing and
asked on September 22, 2013 
chemistry
what is the boiling poinj of cs2,naf andco2
asked on November 22, 2012 
chem
If an albumin solution replaces starch inside the dialysis tube, would it be detected in the liquid outside the dialysis tube
asked on November 13, 2012 
science
What is the density of 57g and a volume of 6mL
asked on September 22, 2011 
Econ
How's the Federal Budget Deficit related to trade imbalances?
asked on October 1, 2007

language arts
its on the website studies weekly your welcome
posted on April 4, 2019 
life orientation grade 11
Why a study on environmental issues that causes ill health a necessity
posted on August 30, 2018 
Physics
Up
posted on January 11, 2018 
Statistics
I am officially going down in history for this reply.
posted on November 27, 2017 
s.s
Yes fadf I have seen a crap load of her post from 2001 thru 2017 I am shocked she is even alive because of how much she does this but I wonder if she some kinda bot lol well I gtg
posted on November 2, 2017 
chemistry
LITHIUM
posted on April 18, 2017 
physical
A car moving with the velocity of 20m/s at 30 to the horizontal, what is the components of the velocity along the horizontal
posted on January 13, 2017 
science
i think it is just a hard Q.
posted on November 25, 2016 
chemistry
120
posted on November 13, 2016 
Life orientation
Make six suggestions on how to combat the violation or discrimination
posted on May 19, 2016 
Life Orientation
report violation to international violation
posted on May 9, 2016 
life orientation
People will live in fear
posted on April 28, 2016 
L.O
Human right violation of xenophobia
posted on March 6, 2016 
PHYSICS
PLS POST MY ANSWERS
posted on January 27, 2016 
math
cross multiply and you will get something like this 2.5 X x = 0.5 X 1.25 which the answer will be 2.5x = 0.625 because we are finding for x so divide both sides by 2.5 so that x can stand alone. so 0.5x over(divided by) 2.5 and 0.625 over(divided by) 2.5.
posted on November 23, 2015 
Physics
1 answer
posted on September 13, 2015 
chemistRY
3.5g
posted on April 11, 2015 
advance algebra
i think of 3 positive numbers. the greatest number is twice a perfect square. the least of them is 1 less than half the greatest number. the average of the 3 numbers is 12.
posted on August 28, 2014 
tourism,geography,economics and math literacy
geography,tourism and maths literacy
posted on June 18, 2014 
body systems
Its B
posted on May 12, 2014 
HEALTH
A
posted on May 5, 2014 
baker
B: When they struggle with body changes.
posted on May 5, 2014 
health
A?
posted on May 5, 2014 
life orientation
POTOKO HIGH SCHOOL
posted on May 4, 2013 
intermediate algebra
Let l = measure of the parallel side of the highway in meters w = measure of the perpendicular side of the highway in meters l + w = 3000 l = 3000  w length = 3000  w width = w A= lw **since we will only use 1 side of the length, we will use: A=
posted on February 17, 2013 
Chemistry
oh, you used the molarity to get the mole.. but i don't know what will i do with the 500mg and how to relate (3)and(4) to get the mass of NaHCO3.
posted on December 9, 2010 
Chemistry
thank you. i'm just confused what to use to find the number of moles, when there's mass and other given. thanks for the help.
posted on December 9, 2010 
Chemistry
i didn't round it off, because in our class we have a rule that we should not round off until we get the final answer. NaHCO3 + HCl > NaCl + H2O + o2 0.040 L / 0.120 mole L = 0.33..
posted on December 9, 2010 
Chemistry
oh! is it right? i need to multiply the number of HCl to 1mol/6.022x10^(23)?
posted on December 9, 2010