Thursday
July 24, 2014

Posts by Precious


Total # Posts: 97

Edward Phatudi
Am doing physical science.life science.geography and maths lit i want to know which career can i do

Chemistry
How would you prepare pure dry crystals of pottasium trioxonitrate (v) ?.

physics
a flying bat emits squeaks of frequency 80 kHz.if a stationary observer hears the frequency of the squeaks as 78kHz,is the bat moving towards or away from the observer?determine the speed at which the bat is flying.

speech
traditional african marriage is an advantage for men only not women?

speech
traditional african marriage is an advantage for men only not women,?

Physical sciences
Help me please!

Physical sciences
A factory siren emits a sound at 900hz.what frequency will be heard by the driver of a car traveling at 100km.h away from the factory?

home econs
what are the factors to consider when making a stitch

Science
A force of 650N is acting upwards and a force of 850N is acting downwards along the same line,state the magnitude and direction of the resultant force and the equilibrant force

life orientation
identify and dercribe 3 environmental health hazards that cause ill health,crises,and or disasters within ur community or any other community within s.a and globally.include evidence that is current of the identified issues(e.g graphs and statistics)

TRIG Help help help test tommarow
A TV tower stands on top of the Empire State building. From a point (on the ground) 1150 feet from the base of the building, the angle of elevation to the top of the TV tower is 52 degrees. If the building is 1250 feet tall, what is the length of the TV tower?

economics
no, because many people die because of poverty

grade 12 life orientation
please help i'm clueless

Heat energy
CORRECTION (a). 500g of copper is heated from 30 degree celcius to 120 degree celcius, what is the quantity of heat supplied?(b). If the same quantity of heat is supplied to 300g of water initial at 30 degree celcius. What will be the final temperature.

Heat Energy
A container holds 3kg of water at 25 degree celcius. If 0.5kg of iron at 80 degree celcius is added to the water in the contain. What is the? (i) final temperature of the container. (ii) Quantity of heat gained by water

Heat Energy
1. (a) 500g of copper is heated from 30 degree celcius - 120 degree celcius?. (b) if the same quantity of heat is supplied to 300g of water initial at 30 degree celcius,what will be the final temperature.

ENG1511
I dnt hav a clue

Mechanics _ physics
A uniform bar 1m long is pivoted at the centre has a mass of 3kg. It is acted upon by a conquer which cause to possess an angular acceleration of 6rad/sec^2; calculate a. The moment of inertia of the bar b. The torque on the bar

Mechanics _ physics
A wheel rotating with an angular velocity of 16rad/sec is slowed to an angular velocity of 4rad/sec by an angular acceleration of 2rad/sec^2.find a. The angle turned in the process of slowing down b. The time required

Mechanics
Find the moment L about a perpendicular axis through the rod at a distance L/3 from the centre of mass.

Mechanics
Find the moment L about a perpendicular axis through the rod at a distance L/3 from the centre of mass.

Mechanics
An areoplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.how large a torque is required to give it angular acceleration of 20rad/sec^2

Mechanics
An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

Mechanics
An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

Mechanics
An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

Mechanics
What is Viscosity

Mechanics
What is Viscosity

Mechanics
What is Viscosity

Mechanics_physics
An argon atom has a mass of 6.64 x 10kg has 5.5 x 108J of kinetic energy. At what velocity is it moving.?

physics
if a car moving 180km/h reduces to 72km, what is the percentage change in kinetic energy?

mechanics- physics
An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron to pass through the sh...

mechanics- physics
An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron to pass through the sh...

mechanics- physics
An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron to pass through the sh...

mechanics- physics
An electron moving at a speed of 5 x 10 raise to power 6m/s was shot through a sheet of paper which is 2.1 x 10 raise to power 4cm thick. The electron emerges from the paper with a speed of 2 x 10 raise to power 6 m/s. Find the time taken by the electron to pass through the sh...

mechanics_ physics
1.20kg mass is dropped from a height of 0.9M unto a spring with force constant K= 120N/m and negligible mass. Find the maximum distance the spring will compressed pls show full working and indicate formular.

mechanics_ physics
1.20kg mass is dropped from a height of 0.9M unto a spring with force constant K= 120N/m and negligible mass. Find the maximum distance the spring will compressed pls show full working and indicate formular.

mechanics_ physics
A trolley is use in pushing a book 1.20m along a horizontal table top with a horizonta force of 3.0N. The opposing force of friction is 0.6N. 1. How much work does his 3.0N force 2.what is the work done on the book by the friction? The total work done on the book pls indicate ...

.physics
correction of question. A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the impluse on the lorry is 15,000Ns; calculate 1. Acceleration 2.The distance covered.

physics
An argon atom has a mass of 6.64 x 10 kg has 5.5x108 joules of kinetic energy. At What velocity is it moving?

mechanics-physics
A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the on the lorry is 15,000Newtons; calculate: (a) Acceleration (b) The distance covered

mechanics - physics
A bullet of mass 3.0g moving at 500m/s hits a tree and pierced 20cm into the trunk of the tree.what is the resistimg force offered by the tree?

Mechanics - physics
A car of mass 400kg moving initial at 36km/h increases to 120km/h in 6sec, what is the force acting on the car?

Mechanics_physics
A soccer player kicked a ball at an angle of 37 degrees to the horizontal.if the range covered by the ball is 240.3m; calculate (a) The initial velocity of projection ? (b) The time of flight (c) The maximum height attained

Physics
Help imediately please very urgent! A stone is dropped from a cliff 200m high,if a second stone is thrown vertically upwards 1.50sec after the first was released,strike the base of the cliff at the same in stant as the first stone,with what velocity was the second stone thrown?

mechanics -physics
A car moved at 15m/s for 2minutes, afterwhich it moved at 18m/s for 45seconds,calculate the average velocity of the car?

life orientation
describe five sentences the importance of mananging ones finances.

life orientations
suggest 5 recommendations on how to address the pollution

chemistry
How can you prevent or stop eutrophication

life orientation
critically discuss 8 way in which the environmental problem impact on the within your community or any other community within south africa or globally

Physics
I cant solve this can someone help me please

Life Orientation
In which ways does air pollution impact on communities within South Africa

life orientation
critically discuss 8 ways in which the environmental problem impact on the within your community or any other community within south africa or globally

chemistry
i need a conclusion for experimenting a tin oxide compound my result for the emperical formula of compound is 2 which will be SnO2

algebra
The perimeter of triangle ABC is 4x+1,if 2 sides are x+2 and x-1,find the 3rd side

Algebra 2
Tell how many solutions this system has x-4y=2 x+4y=2

Algebra 2
Solve the linear system 4x+4y=-2 y=-x show work

Algebra 2
Solve the system y=-4x+4 y=-x-5 show work

Algebra 2
Determine the solution to the system y≤x+6 2x+y≤-6 show work

Algebra 2
Determine the solution to the system y≤2x-2 y≥-x-3 Show work

Algebra 2
A factory is producing DVD and Blu Ray discs. For each case of DVDs they make $180 profit. For each case of Blu Ray they make $250. The DVDs take 3 minutes of machine time and 7 minutes of labor. The Blu Rays take 4 minutes of machine time and 12 minutes of labor. The maximum ...

Algebra 2
A factory is producing DVD and Blu Ray discs. For each case of DVDs they make $180 profit. For each case of Blu Ray they make $250. The DVDs take 3 minutes of machine time and 7 minutes of labor. The Blu Rays take 4 minutes of machine time and 12 minutes of labor. The maximum ...

research&writing
Due Week 2 and worth 100 points Your sister owns a small clothing store. During a conversation at a family dinner, she mentions her frustration with having to manually track and reorder high demand items. She would like an automated system but has a very small budget. Write a ...

Algebra
Wat is the factorization of 2x^4+3x^3-38x^2-27x+180=0

tx, history
give three examples of how humans effect geography.

simultaneous equation
13x+6y=41

chemistry
Why are standard solutions of reductants less often used for titrations than solutions of oxidants?

social science
a sociological theory concerned with the issues of who benefits from particularcsocial arrangements and how the powerful maintain their positions is known as:

math
three groups of students are sharing left over pizza all the same size in witch group does each student get the most pizza

Math
Great thanks

social studies
I am one of the United States' most famous attractions. I am 279 milies (449 km) long and 1 mile (1.6 km) deep. People come from all over to hike in and around me.

math
what was the population of the world in 1500 in billions if it is 0.5

com. 140
What kind of unwanted reactions might you encounter when trying to convince the business committee to except your proposal for a new service?

Penn Foster Writing Assignment Writing Skills
It is not dump maybe you did some mistakes

4th grade math
wat is the method

crt 205
what is capital punishment

Accounting
I'm tryng to draft a End of the Month Income Statement and I'm not sure what items to look for to record under the Revenue section. Can anyone please help or advise me what to look for?

Accounting
Thank you so much, it's more than what I had at first.

Accounting
*I don't know where to begin, please HELP* Use the following adjusted trial balance of Webb Trucking Company to prepare a classified balance sheet as of December 31, 2005. Account Title Debit Credit Cash . . . . $ 7,000 AR . . . . . 16,500 Office Supply 2,000 Trucks . . . ...

Accounting
The Ritz Manor is a popular seaside resort. A double room costs $220 for one night. In order to reserve a room, guests must pay one night’s stay in advance. On each floor of the hotel, Vendalite Company operates vending machines with energy bars, juices, and other snacks ...

Physics
A woman on a bridge 75.0m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.00m more to travel before passing under the bridge. The stone hits the water 4.00m i...

Essay
Thank you again,I thank God for you and this site.

Essay
This is the edited version! The economy has changed everything that we have become accustomed to, such as the way we spend our money. We make choices that meet our standards in budgeting the income we receive. Adjusting to situations that are beyond our control forces us to re...

Essay
thank you, sorry I reposted the essay before i read your reponse. Thank you again.

Essay
The economy has changed everything that we have become accustomed to, such as the way we spend our money. We make choices that meet our standards in budgeting the income we receive. Adjusting to situations that are beyond our control forces us to rethink those decisions. For i...

Essay
I have corrected the spelling errors, please help me become a better writer! The economy has changed everything that we have become accustomed to, such as the way we spend our money. We make choices that meet our standards in budgeting the income we receive. Adjusting to situa...

Essay
Do I have any errors? Is this essay a good one? How can I improve this?

Essay
Please let me know how I can write better.

Essay
The economy has changed everything that we have become accustomed to, such as the way we spend our money. We make choices that meet our standards in budgeting the income we receive. Adjusting to situations that are beyond our control forces us to rethink those decisions. For i...

Essay
Please help me to improve this essay.

(Writeacher)Writing Skills--Essay
This is the revise version.

Writing Skills--Essay
The economy has changed everything that we have become accustomed to, such as the way we spend our money. We make choices that meet our standards in budgeting the income we receive. Adjusting to situations that are beyond our control forces us to rethink those decisions. For i...

Writing Skills--Essay
People are changing everyday because of the changes in this world. The economy changes everything that we have become accustomed to,like the way we spend our money, and the choice to become adjustable to whatever the situation is. I use to buy over three hundred dollars in gr...

essay
I was wondering if anyone can provide a essay topic? Then I can post it and you tell me what u think.

Accounting 102
Turner and Isham agreed to form a partnership. Turner contributed $ 200,000 in cash, and Isham contributed assets with a fair market value of $ 400,000. The partnership, in its initial year, reported net income of $ 120,000. Assume that the partnership agreement states that Tu...

social studies
which state in the U.S. is closest to the North Pole?

world history
thank yew so much...

world history
where on earth is a place that is uninhabited by humans... in other words... where can a civilization not exist???

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