February 6, 2016

Posts by Pearl

Total # Posts: 49

Physical sciences
A ball is thrown vertically upwards at 4ms-1 and returns yo the throwers hand.calculate the maximum height reached by the ball
February 1, 2016

The sum of 2 numbers is 32.when 5 subtracted from 4 times 1 of the numbers,the result is 8 times the other number.find the difference between the 2 numbers.
November 24, 2015

Comprehensive secondary school
Determine the mass of copper(ii)trioxonitrate(v) that will be formed when 15grams of copper is added to excess dilute trioxonitrate(v).{cu=63.5,N=14,O=16} solution cu(No3)2=Cu N2 O6 =63.5+14x2+16x6 =63.5+28+96 =187.5 Number of mole=mass/molar mass =15/187.5 =0.08mol.
November 14, 2015

L.O identity four environmental issues that cause ill-health to your community
September 16, 2015

Thabos brother is 5 years younger than him.Their combined age is half their sisters age.Their sister is 12 years.How old is Thabo?
September 6, 2015

The costs and consequences of providing the subsidies and welfare 2. Are there any welfare or subsidy payments that should be reviewed or added ? 3. Are there any current subsidy or welfare issues that are being discussed or addressed in municipalities
May 28, 2015

physical sciences
two forces of 5 N and 7 N respectively act on an object, what are the maximum and minimum resultants of the two forces?
January 26, 2015

physics1015(applied mechanics)
13.5 kN
August 21, 2014

history, life science, cat, maths lit
What career path can I follow with these subjects?
August 17, 2014

history, life science, cat, maths lit
What career path can I follow with these subjects?
August 17, 2014

Information about Electromagnetic cranes
August 16, 2014

What is the value of the digit 6 in 683,607 than the value of the digit 6 in 462,601? I see two 6's in each number. Which are you asking about? That's the question. It doesn't specify the place value. Here are the choices: A. 10 times B. 100 times C. 1,000 times D...
February 22, 2014

What is the value of the digit 6 in 683,607 than the value of the digit 6 in 462,601?
February 22, 2014

72-5(13+2)*5= (72 - 55) * 5 = 85 How did you arrive to 55? Please explain
February 22, 2014

Solve the mathematical expression. Show your work. 72-5(13+2)*5=
February 22, 2014

Which term can be put in the blank to make the statement below true? 4,000,000=40 A. Thousands B. Ten-Thousands C. Hundred-thousands D. Millions
February 22, 2014

mike spends 2/3 of his time studying. on tuesday spends 1/6 of his time studying for his science test. what is the value of the combine time Mike studied for his science test?
February 22, 2014

critical thinking
how do you write in journal format?
October 28, 2013

September 30, 2013

HOW MUCH IS 20,504 DIVIDED INTO 46,934.75
August 10, 2013

maths literacy,biology,tourism,business studies
can i nursing for this subject?
April 4, 2013

How will an increase in pressure influence the amount of SO2(g) present at equilibrium?explain.
April 1, 2013

Carl Lewis set a world record for the 100.0-m run with a time of 9.86 s. If after reaching the finish line, Mr. Lewis walked directly back to his starting point in 90.9 s, what is the magnitude of his average velocity for the 200.0m?
February 22, 2013

basic economics
The U.S. capitalist system relies on a theoretical model, the circular flow model, with three basic elements interacting together to ensure that our needs and wants are provided. The three sectors are (a)consumer, (b)business, and (c)government. The circular flow model shows ...
December 30, 2012

solve t^2 + 3 = 6t using quadratic formula
December 16, 2012

A random sample of 80 students at a large school shows an average grade of 72 in Algebra with a standard deviation of 4. What is the standard error?
November 24, 2012

Statistics for Social Science
A random sample of 80 students at a largae school shows an average grade of 72 in Algebra with a standard deviation of 4. Find the standar error.
November 24, 2012

Life orientation
July 14, 2012

Life orientation
In 10-15 lines critically discuss five ways of floods in which the human or environmental problem impacts on the community. Provide relevant sources to support your claims.
April 17, 2012

for the event of rolling one die, find a.P(rolling atlease a 3) b.P( ROLLING AN ODD NUMBER)
December 13, 2011

A block of wood weighing 10newton is placed on the horizontal table,it is then pulled by means of a spring balance attached to one of its ends,the block just begins to move when the spring balance records the horizontal force 5newton.what is the coefficient of static motion ...
November 24, 2011

A ride in a cab costs $0.40 plus $0.15 per mile. a.Write an equation for traveling x miles in the cab.
November 16, 2011

what is the molarity of an NaOH solution if 28.2 ml of a o.355 M H2SO4 solution is required to neutralize a 250 mL sample of the NaOH solution?
November 3, 2011

Find the derivative of the function y=x2 + 2x + 1/ square root of x2 + 2x -1
September 26, 2011

calculate Ph occuring when 100ml of 0.10m acid is added to 500ml of 0.08m acetate buffer,pka 4.75,ph 4.5
August 2, 2011

At 25 degrees celsius,one cm3 of iron mass of 7.62 grams. What volume of iron is occupied by 125 grams of iron
July 21, 2011

Drug addiction substance
By taking 2 much dose of it
May 16, 2011

Drug addiction substance
How can drugs cause accidents?
May 16, 2011

Ways in which the human or environment problem impacts on the community
May 8, 2011

Life orientation
Two institutions/community organisations that are involvdd in supporting or giving redress to floods. Explain how these organisations are involved in providing a safe nd healthy environment.
May 2, 2011

Use base ten blocks and a grid to represent each fraction.Then write each fraction as a decimal. A)1/2 B)9/10
January 18, 2011

My instructor posted the Rubrics for this assignment, it includes a part that reads as follows: Answer Key for Part One: Paragraph 1 - Evaluation, Paragraph 2 - Summary, Paragraph 3 - Synthesis, and Paragraph 4 - Analysis. I don't think she realized the answers were ...
September 8, 2010

What are some examples of solutions and suspensions in our everyday life?
May 13, 2010

April 19, 2010

criminal justice
Should an officer withhold information in a press release if that information could later affect the prosecution of a suspect? Is “setting the stage” for a press release professional or deceitful?
February 14, 2008

what businesses would be affected if biogeochemical cycles change.?
April 25, 2007

which businesses would changes impact the most from biogeochemical cycles? Businesses involved in their products: fertilizers, soil conditioners, soil bacteria, etc. Businesses related to enzyme reaction products: Sugar Syrup (from wood chips), medicines, etc.
April 25, 2007

steps to reduce the harmful effects of human activities on biogeochemical cycles? Pollution has to be controlled.
April 25, 2007

April 18, 2007

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