Questions Asked on
June 15, 2014

Physics
Assuming the best high jump record from a standingposition in a school was 1.52 m, what initial velocity was needed for this jump? Neglect any sideways motion.
asked by Han 
physics
a pendelum in a fathers clock measures .90m from the support to the centerof the bob
asked by Anonymous 
Chemistry
how many millimeter should be taken out to prepare 0.5 normal HCL solution of 200 ml. density=1.18, purity 37% please response soon
asked by Sparky 
physics
If two stones projected from the same point with the same speed but at angles pi/3 and pi/6 respectively have their ranges R₁ and R₂ then a)R1=2R2 B)R1=R2 C)R1=5R2 D)R1=25R2
asked by fatima 
Algebra
What are the coordinates of X22 where 1 is more than or equal to x and 2x where x is less than 1? NOTE: X2 is x squared.
asked by Van 
bbb4m
6.) How did "interdependence" and the principle of trade replace "selfsufficiency" among Aboriginals in Canada?
asked by rifr 
Chemistry
Benzene sulfonic acid, C6H5SO3H, is a strong acid and will neutralise sodium hydroxide solution (a 1:1 molar ratio). Benzene sulfonic acid crystals (y grams) were weighed into a titration flask and titrated against sodium hydroxide solution (1.0 M) and
asked by S 
maths
She adds the to number together and divides the result by 2her answer is 44 one of EMilys numbers is 12what is Emilys other number?
asked by ahmed 
Math
You have a 50 cm x 50 cm card board. Squares with side length h are cut out of the corners and the sides are folded up to make a box. What polynomial represents the volume of the box formed?
asked by Evan 
chemistry
To 50 mL of this buffer, 10.0 mL 0.76 M soium hydroxide was added, what is the pH of the resulting solution after equilibrium has been reestablished
asked by cel 
Maths
A radioactive substance decays exponentially in such a way that after 50 years, 60% of the initial amount remains. Find an expression for the quantity remaining after t years.
asked by Rish 
math
Differences between the external angle and n1 sides regular polygon and n+2 side regular polygon is 6 degree then what is the each external angle
asked by sana 
English
Which of these two sentences is correct? Is there a different correct format? This construction is different than in English. This construction is different from English.
asked by Anonymous 
Math
What are the formulas for 3D figures?
asked by Christopher 
algebra
. A professor has RM 15000 to invest for one year, some are 8% and the rest are at 7% annual interest. If she will earn RM 1100 from these investments, how much did she invest at each rate?
asked by lo 
science
what is the difference between erosion transport and deposition????????????????????
asked by alia 
calculus
Eric is standing on the ground, a distance of 70 ft from the bottom of Ferris wheel that has a 20 ft radius. His arm is at the same height as the bottom of the Ferris wheel. Janice is on Ferris wheel which makes one revolution counter clock wise every 16
asked by Praphul 
motion analysis
Using the information below estimate the time required to analyse the data collected using the two motion analysis systems when there are 10 markers on the subject and the data is collected for 100 frames. Cinematography system 2 seconds per marker 5
asked by arzam 
math
What is the answer of X' cap Y What is the answer of Y' U Z' What is the answer of (X \ Z ) ' What is the answer of ( Y \ Z ) ' U X ' X={10 ,20 ,30 ,40 ,50} Y={30 ,50, 60, 90, 100} Z={40, 50, 60, 70, 80} U={200, 300}
asked by tsunayoshi 
physics
a box of treasure with a mass of 92 kg and volume of 0.031metrecubic lies at the bottom of the ocean.how much force is needed to lift it?
asked by joelinho 
Algebra II
Find the error in each of the following and provide an explanation of the mistake made. Thanks for the help. a) (3x/1/x5)^1 =1/3x/x1/5 b) (3x/1/x5)^1 =3x/51/x c) (3x4y)^2 = 9x^2 + 16y^2 d) x^23/4+x^2=3/4
asked by Monique 
Algebra II
I wrote out the word pie in place of the actual symbol. Consider (pie n+pie n1)(pie npie n1)= 1 for n greater than or equal to 1. a) Provide two numerical examples illustrating its validity. b) Show the statement is true in general. c) What is the
asked by Monique 
tourism
i want to write an brief article linking history and tourism.the rise of heritage
asked by lakmi 
Math
angles ABC and XYZ are complementary angles. if m < ABC is 18 more than three times m < XYZ, find < XYZ i have no idea how to do this i know that something has to equal 18+ 3m but i don't understand the (
asked by jk 
physics
a string supports a solid iron object of mass 180g totally immersed in liquid of density 800kg/m3. calculate the tension in the string if the density of iron is 8000kg/m3.
asked by joelinho 
com 200
Kyle has struggled to feel comfortable in science classes with labs since his junior year of high school, when a solution he was working with ignited. He was always cautious with chemicals but his lab partner that year enjoyed seeing what would happen when
asked by elizabeth 
Math
An openended regular hexagonal prism whose length is 15cm and whose crosssection has a perimeter of 24cm. Find the surface area.
asked by Christopher 
HCA 311 Health Care Financing & Information System
Using the example of “From the Front Lines” in Chapter 6 of your text, calculate the break even for the number of procedures. Use an electronic spreadsheet to show how you computed the break even and embed the spreadsheet in your paper. Discuss the
asked by Courtney 
motion measurements
Using the information below estimate the time required to analyse the data collected using the two motion analysis systems when there are 10 markers on the subject and the data is collected for 100 frames. Cinematography system 2 seconds per marker 5
asked by arzam 
chemistry
calculate the percentage by mass of ozygen in trioxnitrate5 acid H1, N14, O16
asked by Anonymous 
physics
a skater is sliding forward on a flat rink at 6 m/s. her mass is 71 kg. the sliding friction acting on her skate blade is 13.4 N acting backward. air resistance is 14.7 N acting backward. what is her horizontal acceleration?
asked by Rob 
English
Could you plz help i need to write a poem about a dream having 10 syllables on each line, Please help
asked by Qais 
physics
as Sue runs, her knee joint passes through the following vertical positions (meters): Frame 1: .043 Frame 2: .145 Frame 3: .21 Frame 4: .39 Frame 5: .415 The data were collected at a frequency of 100 Hz. What was the vertical velocity of her knee joint at
asked by chris 
physics
Which one of the following statements about an object performing Simple Harmonic Motion is TRUE? Select one: a. The object reaches its maximum speed as it passes through the equilibrium point. b. The object’s velocity is never zero. c. The object has a
asked by jake 
physics
A spring and mass system are oscillating with an amplitude of 8.4 cm. The spring constant is 204 N/m and the mass is 540 g. Find the mechanical energy of the system to 2 sf.
asked by jake 
physics
A mass of 2.9 g is hanging underneath a spring which has an unknown spring constant. The period of oscillation is 5.5 seconds. Find the spring constant in N/m. Give your answer to 2 s.f.
asked by jake 
physics
A submarine dives down to a depth 9.5 beneath the surface of the ocean. Calculate the pressure in atmospheres at that depth, assuming the density of water is 1029 kg/m3, and the air pressure at the surface is 101.5 kPa
asked by jake 
Geometry
How do you find the lengths of the sides of an isosceles triangle with three medians?
asked by Sheenybeany 
Algebra 2
you purchase 12 packages of wrapping paper. large packages cost $7 & small cost $4.50. Write & simplify an expression that represents the total cost if n of the 12 packages are large
asked by Andri 
Algebra 2
Kendra pays $35 plus $5/hr to rent a scooter. Write an expression for how much she pays for renting a scooter h hours. How much does she pay for renting 6 hrs?
asked by Andri 
Algebra 2
An equilateral triangle with side length 2" will have a height of square root 3 inches. A yield sign is an equilateral triangle with perimeter of 5 ft. To the nearest inch, what is the height of the yield sign?
asked by Andri 
Algebra 2
The highest speed reached by a solar powered vehicle is 48.71 mph. This record was set by a Sunracycer on June 24, 1988 in Meza, AZ. How far could this car travel in 2.5 hrs at this speed.
asked by Drew 
Chemistry
In aqueous solution, hydrochloric acid, HCl, and sodium carbonate, Na2CO3 react to produce gaseous carbon dioxide, CO2, water, H2O and sodium chloride, NaCl. A 10.0 g impure sample of Na2CO3 is dissolved completely in water; then treated with 3.00 mol
asked by Olivia 
physics
a strong 100 kg man pushes down hard on the left piston. What happenes to the 10 kg mass on the right? The answer is the moves down, lifting the left piston despite the strong man. BUT WHY?
asked by nic 
math
to build a 2.5 m by 3 m deck, a local building supply store chargers $1000 for materials, plus the carpenter's wage of $30/h. The store gives you an estimate of $1480 for the total cost. How much time is estimated for the carpenter to build the deck?
asked by mellanni 
social studies
Why would you pick colonist
asked by Dorothee 
chemistry
calculate the percentage by mass of oxygen in trioxonitrate(v) acid
asked by Anonymous 
Precalc
Are exponential equations the same as exponential functions? I am writing a summary of this year's PreCalculus lessons and one of the topics on the outline is "Exponential Equations", but on the lesson Power Points on my teacher's website there is only
asked by Liema Been 
Algebra
In their last basketball game, Becky scored twice as many points as Min. Together, they scored 42 points. How many points did Becky score?
asked by Andrea Flores 
algebra
Kyle has a total of 16 coins in his pocket. All the coins are nickels or quarters, and they have a total value of $2.20. How many nickels does Kyle have?
asked by Andrea Flores 
math
Compute Sun Jung's estimated tax payment for the second quarter. She is selfemployed and she expects to earn $61,760 this year. Her estimated income tax rate is 23%. For selfemployed persons, social security tax is 12.4% of wages up to $106,800, and
asked by Anonymous 
statistics
A graph representing the distribution of the oral temperatures of 50 healthy adult males (selected at random) would best be described as?
asked by ally 
Highcschool
Which one of the characters you read about is 12 years old? A. The narrator’s daughter in “The Yellow Wallpaper” B. Ginger Nut in “Bartleby” C. Lily Dyer in “A New England Nun” D. The son of the old man in “The TellTale Heart
asked by alex 
algebra
The digits of a twodigit number sum to 8. When the digits are reversed, the resulting number is 18 less than the original number. What is the original number?
asked by Andrea Flores 
analytical chemistry
Determine the concentration of iron in an aqueous solution containing 0.2810 grams of Fe(NH4)2(SO4)2 per liter of solution. Express the concentration in mg/dl.
asked by jenine 
algebra
The population of Arizona was 4.2 million in 2000 and 6.9 million in 2008. If the population grew exponentially, which one of the following models the population as a function of time (in years since 2000)?
asked by Terry 
chemistry
What is the chemical formula of ketohexose?
asked by slomomo 
Statistics
Assume that a standardized test is designed to have the mean score of 100 and the standard deviation of 15. At the 95% confidence interval, how large does the sample size have to be if the margin of error is to be 3 points?
asked by Anonymous 
algebra 2
1.Which system of equations represents this situation? Let d be the number of toy cars that Dan has and let j be the number of toy cars that Jacob has. 2.how many toy cars does Jacob have?
asked by stephaie 
Math
Solve for the 1st term of the arithmetic sequence whose 33rd term is 2p and whose 61st term is 26p.
asked by Annika 
Math
Solve for the 101st term of the sequence: 6p, 4+p, 2+3p, 5p, … .
asked by Annika 
Math
1. Find the 12th term of the arithmetic sequence 2, 6, 10, … . 2. Solve for the 101st term of the sequence whose 1st term is xy and d=2x+y3. 3. In the sequence 2, 6, 10, … , what term has a value of 106?
asked by Annika 
math
When four times the number is added to 7 times the number, the result is 33, what is the number?
asked by Johnny 
Physics
In 1926, Johnny Weissmuller set the men’s world 400.0m swimming record in 4.00 min, 57.0 s. In 1966, Martha Randall set the women’s record in 4.00 min, 38.0 s. By how many meters would Martha have been beaten Johnny if they had raced each other?
asked by Piper 
Physics
To qualify for the finals in a racing event, a race car must achieve an average speed of 225 km/h on a track with a total length of 1.4 km. If a particular car covers the first half of the track at an average speed of 205 km/h, what minimum average speed
asked by Piper 
physics
If h is 5m and the mass takes 3 s to move the distance d when starting from rest, what is the distance d? PLEASEEEEEE!!!!
asked by yan 
Physics
The diagram shows a weightlifter in the initial stages of his lift. He lifts two 70 kg masses connected to a 10 kg bar. In addition, there are two upward forces : 795N and 810N a. Calculate the total weight that he is lifting? b. Calculate the size of the
asked by Sandra