Thursday
August 28, 2014

Posts by Anonymous


Total # Posts: 69,890

Physics
A gun is fired parallel to the ground. At the same instant, a bullet of equal size and mass next to the muzzle is released and drops to the ground. Which hits the ground first and why? I think that the bullets will hit the ground at the same time because the bullet that is ...
August 7, 2014

physics
A particle undergoes two displaments , measured from the positive x-axis, with counterclockwise positive.The first has a magnitude of 11 m and makes an angle of 88 with the positive x-axis. The resultant displacement has a magnitude of 6.8 m direceted at an angle of 115 from ...
August 7, 2014

Chemistry
HNO3 used as a reagent has a specific gravity of 1.42 g/ mL and contains 70% by strength HNO3. Calculate: Volume of acid that contains 60 g pure acid? Volume of water required to make 1 molar solution from 2 mL concentrated HNO3?
August 7, 2014

Maths
1) -_/a^3 2) _/_/a 3) _/^3_/64a^6b^12
August 7, 2014

HISTORY
The richest discovery in the history of mining occurred in 1873. This so-called "Big Bonanza" made _______ the richest man in the world.
August 7, 2014

physics
Show that the critical velocity of body revolving in cercular orbit very close to the surface of a planet of radiuis R and meandencity.
August 7, 2014

physics
a bus travels from one point to another wuth a speed of 40km/h and returns with a speed of 60km/h.what is e average speed and average velocity of the bus?
August 7, 2014

sci
How to prepare 1mol conc. Sol
August 6, 2014

sci
How to prepare 1mol conc. Sol
August 6, 2014

algebra
rational
August 6, 2014

PHYSICS
3) A 10.0 kg object is hanging by a massless rope in an elevator that is traveling upward. The tension in the rope is measured to be 75.0 N. What are the magnitude and direction of the acceleration of the elevator?
August 6, 2014

Physics
2) A child sits on a merry-go-round, 1.5 meters from the center. The merry-go-round is turning at a constant rate, and the child is observed to have a radial acceleration of 2.3m/s^2. How long does it take for the merry-go-round to make one revolution?
August 6, 2014

Physics
1) A car moving along a straight stretch of road at 60 mph [26.7 meters/sec]. The driver makes slams on his breaks locking them so that the car skids to a stop. Assume a constant braking force due to friction, and a kinetic friction coefficient of 0.70 between the tires and ...
August 6, 2014

Math
Explain how knowing that that 5 divided by 8 equals = .625 helps you write the decimal for 4 5/8
August 6, 2014

anonymous
The forms used in your coding area cost $100.00 per one thousand forms for the first 2,000 and $50 for every one thousand thereafter. If you need to order 5,000 forms, what is the total cost?
August 6, 2014

surface processes on earth
What is the most significant factor that ontros yhe development of soil.
August 6, 2014

physics
1. Two carts, one twice the mass of the other, experience the same force for the same time. What is their difference in momentum? What is their difference in kinetic energy?
August 6, 2014

reading
may cause drowsiness alcohol may intensity this effect. use oare when operating a car or dangerous machinery.which of the following is logical conclusion based on
August 6, 2014

physics
why is the surface of a bell made large?
August 5, 2014

physics
A projectile is launched at an angle of 30 to the horizontal with a speed of 30 m/s. How does the horizontal component of its velocity 1.0 s after launch compare with its horizontal component of velocity 2.0 s after launch?
August 5, 2014

Finance Help
I need to write about this question: Discuss the various stockholder rights. What factor(s) make the valuation of common stock more complicated than the valuation of bonds/preferred stocks? (im so confused!!) :(
August 5, 2014

Math help
5x+2y=12 How do i solve it?
August 5, 2014

Sports
What are some examples of some kind of disciplinary enforcement for sports?
August 5, 2014

Dance
I'm planning on trying out for dance team officer and I need help trying to find a squad name that starts with 'h'. Any ideas? Example: Hayley's Hershey kisses
August 5, 2014

Afrikaaans
Opstel titel is my skool
August 5, 2014

Life orientation
Can u replace that maths literacy and put another 1
August 5, 2014

Life orientation
To help people overcome poverty
August 5, 2014

algebra
what are the values of x in a^2+b^2=2014
August 5, 2014

advance algebra
(2/3,-1/2)(-3,-8)
August 5, 2014

advance algebra
(2/3,-1/2)(-3,-8)
August 5, 2014

Human Resources
3. Design a Pilot Test. Following are descriptions of three situations in which a test has been developed. Read each situation and then design a pilot test. Answer the following questions about the pilot test: a. Who will take the test? b. What information will you gather, and...
August 5, 2014

Physics
Thank you very much!
August 4, 2014

Physics
Why can you exert a greater force on the pedals of a bike if you pull up on the handlebars? Does it have anything to do with one of Newton's 3 laws? I'm not sure how to approach this question.
August 4, 2014

physics
A projectile is fired with an initial speed of 65.2 m/s at an angle of 34.5 degree above the horizontal on a long flat firing range. Determine (a) The maximum height reached by the projectile, (b) The total time in the air, (c) The total horizontal distance covered (that is, ...
August 4, 2014

Math 221
Do you mean (x^4 y^5) / (x^3 y^6) ?????? If so, remember when you divide you subtract exponents. =x^(4-3) y^ (5-6) =x^1 y^-1 which is = x/y
August 4, 2014

computer history
History,business study,tourism,zulu,maths literacy,english and life orientation. Am doing those subject and am in grade 11 I don't knw what career must I take anybody can help me my digit please 0724306682
August 4, 2014

physics
Lan."a"f609=714
August 4, 2014

k
What is the mass percent of sodium in NaCl?
August 4, 2014

Physics-help please!
A wave on a rope is 6.1m . a.) What is the wavelength of this wave? b.) If the frequency of the wave is 6.2Hz, what is the wave velocity?
August 4, 2014

math
Investor A deposits 1,000 into an account that earns an interest rate of 6% per annum compounded semi-annually. On the same date, Investor B deposits 800 into an account that earns an interest rate of 8% per annum compounded monthly. After how many years does Investor B’s...
August 4, 2014

Physics
The various energy changes you need to cover are: gravitational potential energy to kinetic energy kinetic energy to elastic potential energy and to heat elastic potential energy to kinetic energy and to heat kinetic energy to gravitational potential energy You could also ...
August 4, 2014

physics
Romeo is chucking pebbles gently up to juliet’s window, and he wants the pebbles to hit the window with only a horizontal component of velocity. He is standing at the edge of a rose garden 4.5 m below her window and 5.0 m from the base of the wall (Fig. 3-34). How fast ...
August 3, 2014

math
Find the standard form of the equation of the line that passes through (-3,2) and (-4,-7)
August 3, 2014

math plz ugh
Find an equation of the line with slope -3/4 and y-intercept (0,-5).write the answer in slope intercept form.
August 3, 2014

math
How would you find an equation of horizontal line that passes through the point (-4,-8)?
August 3, 2014

math help plz!
Write the following equation in slope-intercept form. Then identify the slope and y-intercept. -3x+7y=-9
August 3, 2014

Physics
A projectile is launched at an angle of 30 to the horizontal with a speed of 30 m/s. How does the horizontal component of its velocity 1.0 s after launch compare with its horizontal component of velocity 2.0 s after launch?
August 3, 2014

Physics
A projectile is launched at an angle of 30 to the horizontal with a speed of 30 m/s. How does the horizontal component of its velocity 1.0 s after launch compare with its horizontal component of velocity 2.0 s after launch?
August 3, 2014

Calc BC
When a chain hangs under its own weight, its shape is a catenary (from the Latin word for chain). The equation of a catenary with a vertex on the y-axis is . Find the length of the chain from . Then use the same technique from Problem #8 to find the length of the parabola with...
August 3, 2014

physics
Tension? Pulling one way, mg= 9.8*.06 and because it is not moving, that is the tension
August 3, 2014

Grammar
I am proud to be Hubert's child. Or I am proud to be Hubert's children.
August 3, 2014

math
Jane invests 500 at t=0 at a nominal annual interest rate of 6%, compounded quarterly. What additional amount will she need to invest at t=2 in order to have a total of 1,000 at t=5?
August 2, 2014

Physics
A projectile is launched at an angle of 30 to the horizontal with a speed of 30 m/s. How does the horizontal component of its velocity 1.0 s after launch compare with its horizontal component of velocity 2.0 s after launch?
August 2, 2014

Physics
A stone is thrown vertically upward with a speed of 18.0 m/s. (a)How fast is it moving when it reaches a height of 11.0 m? (b)How long is required to reach this height ? (c)Why are there two answers to (b)?
August 2, 2014

Physics
A car traveling 88 km/h is 110 m behind a truck traveling 75 km/h. how long will it take the car to reach the truck?
July 31, 2014

greatbay community college
A 5.00 kg stone is thrown upward at 7.50 m/s at an angle of 51.0 degrees above the horizontal from the upper edge of a cliff, and it hits the ground 1.50 s later with no air drag. Find the magnitude of its velocity vector just as it reaches the ground.
July 31, 2014

math
A specially made pair of dice has only one- and two-spots on the faces. One of the dice has three faces with one-spot and three faces with two-spot. The other die has two faces with one-spot and four faces with a two-spot. One of the dice is selected at random and then rolled ...
July 31, 2014

life science
why are fossils kept on a glass box in the museum
July 31, 2014

math
a bowl of fruit has 3 strawberries, 2 banannas and 1 apple. what fraction of the fruit is banannas?
July 31, 2014

percentages
Check this.
July 31, 2014

percentages
200
July 31, 2014

percentages
Say an advertiser makes $0.10 every time someone clicks on their ad. Only 20% of people who visit the site click on their ad. How many people need to visit the site for the advertiser to make $20?
July 31, 2014

prealgebra
A building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. b.Find the length of the hypotenuse of the triangular lot. c. Find the sine, ...
July 31, 2014

science
The greenhouse effect is caused by the burning of fossil fuels and deforestation
July 30, 2014

English
Are the english teachers on vacation or something? I posted my essay several times and did not see any reply.. Your help is essential!
July 30, 2014

physics
A car travels 2.74 km in the x-direction, then turns left 61.2◦to the original direction and travels an additional distance of 3.19 km. Calculate the x component of the car’s net displacement.
July 30, 2014

Research Methods
Thank you
July 30, 2014

Math
Frances can type 100 pages in h hours. At this rate, how many pages can she type in m minutes? A. mh/60 B. 60m/h C. 100m/60m D. 60h/100m E. 100h/60m
July 30, 2014

Math
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove answer
July 30, 2014

Math
The endpoints of a diagonal of a square are (-2,2) and (1,5). What is the area of the square?
July 30, 2014

Algebra
For nonzero numbers x,y, and z, 3x=4y and 12y=5z. What is z/x?
July 29, 2014

math
1. Read the following statements: I. All trapezoids consist of two parallel sides. II. The base angles of all trapezoids are equal in measure. III. The lengths of the tall trapezoids legs are equal in measure. Which of the above statements are true? II only I only I, II, and ...
July 29, 2014

Math
At a speed of 48 miles per hour, how mnay minutes will it take to drive 40 miles? Is it 32 minutes?
July 29, 2014

Math
Two trains are travelling on parallel tracks both going from station A to station B.Train 1 leaves at 8 am, at 65 miles per hour. Train 2 leaves at 10 am, at 90 miles per hour. At what time will train 2 catch up to train 1?
July 29, 2014

Math
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove ...
July 29, 2014

PUBLIC SPEAKING
One of the primary jobs of an informative speech is to: A. appeal to the emotions of the audience. B. ask them to do something with the information. C. communicate information accurately and clearly. D. entertain the audience.
July 29, 2014

Writing
Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep eating it because it ...
July 29, 2014

geometry
A bachelor spends one half of his salary on entertainment,one fifth on food,one tenth on clothes and one fifth on rent.What fraction of his salary is left?
July 29, 2014

bussiness math lit and tourism
What university and job can I get
July 29, 2014

Math
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove ...
July 29, 2014

SAT WRITING
Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep eating it because it ...
July 29, 2014

Criminal justice
what subject matter does the us supreme court not have the power to decide?
July 28, 2014

Math (Discrete Math)
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove ...
July 28, 2014

SAT Writing
Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep eating it because it ...
July 28, 2014

Calculus
Find the antiderivative, F(x), with F′(x) = f(x) and F(0) = 1. f(x) = −7 x
July 28, 2014

Chemistry
The decomposition of NO2 at room temperature exhibits the following variation in concentration with time: The concentration of NO2 is expressed in mol/liter, while time is expressed in seconds. [NO2] ln[NO2] 1/[NO2] Time (s) 0.0831 -2.4877 12.03 0 0.0666 -2.7091 15.02 4.2 0....
July 28, 2014

physical
what is cell
July 28, 2014

physical science
what is observed during an experiment of oxalic acid and sodium hydroxide
July 28, 2014

counseling
A low, non-significant correlation between an observation-based assessment of symptoms of autism and a teacher-report of ADHD symptoms provides ____________ of the validity of the autism measure
July 28, 2014

Algebra
3(x-1) -2(x^2+3x+4)-5(x+9)=
July 27, 2014

finance
Program A has a profit of $5,000 and an investment of $100,000, while program B has a profit of $10,000 and an investment of $220,000. Which program has the better ROI?
July 27, 2014

SAT
Suits at a local clothing store are discounted 20%. Despite the discount, the store owner enjoys a net profit (discount price minus cost) equal to 60% of the cost of the suits. If the suits cost the clothing store owner $200 each, what was the prediscount price of each suit? ...
July 27, 2014

Science
What do these symbols mean: 8=====> and ({!}) and ({8=!})?
July 27, 2014

Finanace
If a firm just paid a dividend equal to $4.00 a share, then for the WACC, in order to find the cost of equity, $4 should be
July 27, 2014

Math
Sita needs a perfect score of 100 for math test in this year so as to improve on her average score from 84 to 86. How many maths tests were there altogether in this year?
July 27, 2014

Maths
The average mass of Ken, David and Kelvin is 42 kg. David is 6 kg heavier than the average mass of Ken and Kelvin. Ken is 6kg heavier than Kelvin. Find David's mass.
July 27, 2014

math
The average mass of a group of children is 36kg. If 3/7 of the no. of children are girls and their average mass is 32 kg, find the average mass of the boys.
July 27, 2014

finance
St. Luke’s Convalescent Center has $200,000 in surplus funds that it wishes to invest in marketable securities. If transaction costs to buy and sell the securities are $2,200 and the securities will be held for three months, what required annual yield must be earned ...
July 27, 2014

finance
An important source of temporary cash is trade credit, which does not actually bring in cash, but instead slows its outflow. Vendors often provide discounts for early payment. What is the formula to determine the effective interest rate if the discount is not utilized?
July 27, 2014

finance
Your firm is considering the following three alternative bank loans for $1,000,000: a) 10 percent loan paid at year end with no compensating balance b) 9 percent loan paid at year end with a 20 percent compensating balance c) 6 percent loan that is discounted with a 20 percent...
July 27, 2014

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members