Questions Asked on
July 1, 2013

maths
an amount of Rs 5000 is put into three/investments at the rate of interest of 6%, 7%, 8% per annum respectively; the total annual income is Rs 35800. If the combined income from first two investments is Rs 70 more than the income from the third. Find
asked by edward 
Writing
SAT essay practice. The Chinese proverb, "In crisis is cleverness born" means that through crisis creativity is born. This does not apply to most of the world situations. How can crisis bring out creativity? Crisis is associated with chaos and confusion.
asked by Anonymous 
physics
A person whose weight is 507 N is being pulled up vertically by a rope from the bottom of a cave that is 30.1 m deep. The maximum tension that the rope can withstand without breaking is 590 N. What is the shortest time, starting from rest, in which the
asked by dam on 
compound interest math
calculate the compound interest on an investment of $45,000 at 6% interest compounded quarterly fro 3 years
asked by artyst 
math
A newlyopened restaurant has 5 menu items. If the first 4 customers each choose one menu item uniformly at random, the probability that the 4th customer orders a previously unordered item is a/b, where a and b are relatively prime positive integers. What
asked by anonymous 
physics
A 950kg race car can drive around an unbanked turn at a maximum speed of 46 m/s without slipping. The turn has a radius of 120 m. Air flowing over the car's wing exerts a downwardpointing force (called the downforce) of 12000 N on the car. (a) What is
asked by sammy 
maths
there are 7 children standing in a line ,not all of whom have the same number of cakes with them, if the first child distributes his cakes to the remaining six children such that he doubles their respective no.of cakes ,then he will be left with four
asked by anu 
psy/315
A social psychologist asked 15 college students how many times they “fell in love” before they were 11 years old. The numbers of times were as follows: 2, 0, 6, 0, 3, 1, 0, 4, 9, 0, 5, 6, 1, 0, 2 Make (a) a frequency table and (b) a histogram. Then (c)
asked by Anonymous 
Chemistry
Calculate the change in enthalpy when 52.0 g of solid chromium at 25°C and 1 atm pressure is oxidized. (H°f for Cr2O3(s) is –1135 kJ/mol.) 4Cr(s) + 3O2(g) 2Cr2O3(s) a. –1135 kJ b. –284 kJ c. –568 kJ d. +1135 kJ e. +568 kJ
asked by Jessica 
Chemistry
List in increasing order of expected Rf values in a TLC experiment: salicylic acid, toluene, and benzophenone.
asked by Kris 
math
hasan ran 3 miles in 18.342 minutes. Safaya ran the same distance is 19.291 minutes. How much longer did it take safays to run 3 miles than hasan?
asked by andra 
physics
Two small stereo speakers A and B that are 1.40m apart are sending out sound of wavelength 33.5cm in all directions and all in phase. A person at point P starts out equidistant from both speakers and walks (see the figure (Figure 1) ) so that he is always
asked by Avantika 
physics
Two objects (52.0 and 20.0 kg) are connected by a massless string that passes over a massless, frictionless pulley. The pulley hangs from the ceiling. Find (a) the acceleration of the objects and (b) the tension in the string.
asked by brando 
algebra 1 NEED NOW!!! PLEASE HELPPP
The height of a curved support beam can be modeled by F(x)= x^2/288 +18 Find the height and width of the beam. Height = units Width = units
asked by lisa 
algebra 1 NEED NOW!!! PLEASE HELPPP
The height of a soccer ball that is kicked from the ground can be approximated by the function: y = 12⋅x2 + 48⋅x where y is the height of the soccer ball in feet x seconds after it is kicked. Find the time it takes the soccer ball to reach its maximum
asked by lisa 
bmath
Ben invests $19,500 at 12% interest compounded quarterly for 10 years. Calculate the compound amount for his investment.
asked by artyst 
CHEMISTRY
A throat lozenge contains 5.0mg of menthol, which has the formula C10H20O. a. How many moles of menthol are in 5.0 mg of menthol? b. What is the mass in grams of 1.56 moles of menthol? a. I got 3.2 x 10^5 mole is that correct? b. Not sure how to do this
asked by Tiffany Brooke 
math
How would I solve this; John is paid at an hourly rate of $15 and over time rate of 1.5 times his hourly rate. If john puts in w regular hours and y overtime hours in a week, what is his total wage for the week? (MondayFriday
asked by selena 
Chemistry
Carbon tetrachloride has an enthalpy of vaporization of 29.82kj/mol. If CCl4 has a normal boiling point of 350k, what is its vapor pressure at 273k? (R=8.31 J/molK)
asked by Annie 
Econoics
CobbDouglas Production function Y=60K^1/3 L^2/3 If K=64 L=8 calculate MPL What is the equilibrium real wage in the economy
asked by Julie 
math
Manually calculate the compound interst on an investment of $12,500 at 7.5% interest compound semiannually for 2 year.
asked by artyst 
math
Jessica has 1/3 of a bag of dog food to divide evenly between her 2 dogs. What fraction of the whole bag does Jessica give each of her dogs?
asked by Gisela Adorno 
physics
the man hanging upside down is holding a partner who weighs 491 N. Assume that the partner moves on a circle that has a radius of 5.09 m. At a swinging speed of 4.20 m/s, what force must the man apply to his partner in the straightdown position?
asked by damien 
math
nisha is following a recipe for tomatoe sauce that calls for 1 3/4 tsps of oregano. she is using a measuring spoon that holds 1/8 tsp. how many times ill she need to fill the measuring spoon with oregano to make the tomato sauce? I thought it was
asked by andra 
algebra 1 NEED NOW!!! PLEASE HELPPP
A rectangular picture measuring 3 in. by 7 in. is surrounded by a frame with uniform width x. Write a quadratic function in standard form to show the combined area of the picture and frame.
asked by lisa 
Chemistry
A hard water sample contains 121 mg of CaCO3 per liter of water. Calculate the mass of Na3Po4 needed to remove all Ca^2+ ions from 2.50 L of the water sample? Please help! This question is already on here, but I don't understand the part where it says
asked by Sam 
economics
!@#$%^&w do each of the following infastructure items affect aggregate supply: a) highways, b) schools, c) sewerage system, d) courts and prisons ?
asked by meme 
Algebra
An executive flew in the corporate jet to a meeting in a city 1700 kilometers away. After traveling the same amount of time on the return flight, the pilot mentioned that they still had 300 kilometers to go. The air speed of the plane was 600 kilometers
asked by Jack 
maths
the difference b/w a 3 digit number and the number formed by reversing its digits is 396,the difference of hundreds and the units digit,is one less than the sum of the units and tens digit .find the number
asked by anu 
Math
John has a box that contains one red ball and one blue ball. Every minute he reaches into the box and randomly takes out a ball from it (without looking). No matter which ball he took out, he puts it back together with another ball of the same color. Thus,
asked by Alex 
Physics
A 51.9g golf ball is driven from the tee with an initial speed of 50.8 m/s and rises to a height of 28.4 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 6.08 m below its
asked by Valeria 
Cult Anthro
Running amok (murderous raging) in Malaysian culture susto,spirit attack in Latin America,and fright in Carribean are example of what
asked by Sylvia 
Physics
A book weighing 12 N is placed on a table. How much support force does a table exert on the book? Answer in units of N
asked by Lynn 
Chemistry
If I have 40mg of potassium, that would be how many moles of potassium? mols= grams/atomic number 0.04g/39.0983= .001023062 would equal 1.02 x 10^3 correct? Did I do this problem correctly?
asked by Tiffany 
accounting
here is what I need to do; however my problem is I can not find where I can download the financial information on any corporation Select an American corporation. Visit its website and download the Income Statement, Statement of Stockholders Equity, Balance
asked by Patiance 
maths
o,tt,ff,ss,.....?
asked by Caden 
MATH
I don't understand this,so can you please explain more clearly. Where did you get the 1/5? 1.The point P divides the interval joining A(1,2) to B(9,3) internally in the ratio 4:1. Find the coordinates of P.
asked by Anonymous 
social, political,
As a policy maker, how can sustainability be achieved
asked by Dora 
Gen physics
A 13,900 kg truck is moving at 23.5 m/s on a mountain road when the brakes are applied. The brakes FAIL!! Fortunately, the driver sees a deceleration (ouch!) ramp a short distance ahead. This is an incline used by out of control trucks to dissipate their
asked by justin 
socology
what are some interdisciplinary aspect of aging how have the percentage of the American workforce changed and will continue to change
asked by Anonymous 
chemistry
an 80ppm of KMno4 produced an absorbance of 0.4 in a 1.0cm cuvette. Calculate the molar absorptivity of KMno4
asked by zainabu 
Mrs Sue
Thank you
asked by Anonymous 
health
Nearly ________ movement in the body is the result of muscle contraction. A. All B. 50% of all C. 10% of all D. None of the above
asked by annias 
Chemistry
A metal crystallizes in a facecentered lattice. The radius of the atom is 198pm and the density of the element is 6.57g/cm^3. What is the identify of the metal?
asked by Mark 
math compound interest
rigoberto invests $8,000 at 6% interest comp semiannually for 1 year. Use the compound interest formula
asked by artyst 
Contemporary math
Using the Compound Interest Table, calculate the compound amount after 5 years for an investment of $7,700 at 6% interest compounded quarterly. My answer is $10,370.82 is this correct?
asked by Tim 
math
calculate the compound interest on an investment of $18,000 at 8% interest compounded quarterly for 15 months.
asked by artyst 
math
What would be the compound amount after 19 years on an investment of $42,000 with an 11% interest rate compounded annually?
asked by Tim 
math
To determine the compound amount of an investment of $10,000 with an interest rate of 6% compounded monthly after 4 years requires you to use a table factor that goes beyond the Compound Interest Table. Calculate the new table factor for this investment.
asked by Tim 
Algebra 2
when expanding (x+y)^8, either an x or a y from each of the eight factors is used in the product. That means that x^3y^5 is going to occur several times and the number of times it occurs becomes the coefficient for x^3y^5. Based on this, what is the
asked by Anonymous 
Trignometry
Solve the equation. Express your answer in trigonometric form. x^511=0 I know the answer is: 11^1/5(cos α + i sin α) for α = 0°, 72°, 144°, 216°, 288°. But I don't know where to even start working on this problem.
asked by hello 
statistics
Assuming SAT score data are normally distributed, if only the top 25% of students based on SAT scores qualify to be interviewed for a particular school what would be the minimum score required to have to be interviewed if the population mean is a 1509 and
asked by Anonymous 
psy
After seeing how she interacts with the little Maltese dog next door, Ellie’s parents decide to get her a dog too. Ellie’s new Golden Retriever is much bigger and looks different, but because it is new but very similar, she understands how to interact
asked by Anonymous 
Algebra2...........
Using the integers 2,3,4,5, How many 3digit odd numbers less than 300 can be formed if no repetition of digits is allowed? Please explain and show work.
asked by Anonymous 
Math
my tenths is twice greater than my thousandths . My hundredths digit is the sum of my tenths and thousandths . Who am I?
asked by anne klein 
Math
222+999
asked by Ayesha 
math
1. A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value? Why or why not?
asked by susan 
math
1. Consider the following scenario: A random sample obtained from a population has a mean of µ=100 and a standard deviation of σ = 20. The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a
asked by susan 
Chemistry!!!
1.)The silica that makes up the stationary phase in TLC chromatophraphy is more polar than the mobile phase. What then might the relative positions of the analgesics on the developed TLC plate tell you about the polarity of these molecules? Does this match
asked by Kris 
Physics
A rock is ejected vertically upward at 40 m/s. At what time is the rock moving at 20 m/s upward.
asked by Jean 
Chemistry
An antacid contains 200mg of aluminum hydroxide and 200mg of magnesium hydroxide per capsule. a. How many moles of Al(OH)3 does each capsule contain? b. What is the mas in milligrams of 0.0457 mole of magnesium hydroxide?
asked by Glenn 
Physics
1) Calculate the tensile stress in a 33.000mm diameter rod subjected to a pull of 30.000kN. ANS= MPa (Round to 3 decimal places) Diameter = 33.000mm = 0.033m 30.000kN = 30000N Area = pi*d^2/4 = 3.1416 * 0.033^2/ 4 = 3.1416 *0.001089/ 4 = 0.0034212024/ 4 =
asked by Danny 
Physics
The ultimate strength of a steel rod is 600.000MPa. if the factor of safety 3.000 is required, what is the maximum permissible load for the rod if it has a diameter of 6.000cm? ANS = kN (Round to 3 decimal place) Ultimate strength = 600.000MPa =
asked by Danny 
Physics
A uniform bar 1.000 meters in length and having a cross sectional area of 10.000cm^2 is subjected to a loading of 5750.000 Newtons. This load causes an extension to the bar length of 2.740mm. Calculate the stress and the strain produced. ANS 1 = kPa (Round
asked by Danny 
Physics
A steel bar has a rectangular cross section measuring 1.000cm by 2.900cm and is 8.700m in length. A load of 189000.00N causes the bar to extend 1.500mm. Calculate the stress and strain produced. ANS 1 = kPa (3 decimal places) ANS 2 = (6 decimal places)
asked by Danny 
Physics
The Ultimate strength of a round steel rod is 630.000MPa. If a factor of safety of 5.000 is required, what is the maximum permissible load for the rod if it has a diameter of 3.000cm? ANS = kN (Round to 3 decimal places) Safety = 5.000 Rod diameter =
asked by Danny 
Physics
What is the factor of safety of a steel hanger having an ultimate strength of 630.000MPa and supporting a load of 65000.000N. The steel hanger in question has a cross sectional area of 5.300cm. ANS = (Round to 3 decimal places) Load = 65000.000N ultimate
asked by Danny 
Chemistry
An antacid contains 200mg of aluminum hydroxide and 200mg of magnesium hydroxide per capsule. a. How many moles of Al(OH)3 does each capsule contain? b. What is the mas in milligrams of 0.0457 mole of magnesium hydroxide?
asked by Glenn 
Math (please help steve)
The Chicago Art Museum's Renaissance display consists of four hallways bordered around a square courtyard. A single guard is assigned to patrol the four hallways. When the guard starts working, he begins in one of the corners and walks clockwise. When he
asked by Bob 
Physics
Charged particles such as ions can separate the charges inside of overall electrically neutral atoms, thus making an electric dipole. A dipole is characterized with a dipole moment p=αEexternal, where α is the polarizability of an atom, and Eexternal is
asked by Mary 
statistics
A senator asks his constituents to rank seven issues in order of importance. How many rankings are possible?
asked by Kathy 
Mathematics
Find x given that 132x=72ten?
asked by Shuaibu 
Math
Six people are playing Secret Santa for Christmas. They will each give one gift to someone, and each receive one gift from someone. They are not allowed to receive their own gift. How many different ways are there to exchange gifts?
asked by Brian 
Precalculus
Find all solutions in the interval [0,360degrees] sin(4t)= (Square root of 3)/2
asked by Jeanette 
physics
Even though we have found an earth sized planet around the nearest star Alpha Centauri B, we're not even close to getting there. To see this let's think about the duration of a flight to Alpha Centauri B, which is about 4×1016 meters away. Imagine a
asked by anonymous 
physics
The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. Assuming the earth is a sphere with a radius of 6.38 x 106 m, determine the speed and centripetal
asked by brandan 
ALGEBRA
A satalites escape velocity is 6.5 mi/sec, the radius of the earth is 3960 miles and the earth's gravitational constant(g) is 32.2 ft/sec^2 How far is the satelite from the surface of the earth?
asked by ASHLEY 
trig, math
Which of these functions has period 7? A)y= cot 7/pi x B)y= tan pi/7 x C)y= sin 7/pi x D)y= cos pi/7 x
asked by John 
algrbra
A pine tree casts a shadow that is 49 feet long. A 10 foot sign next to it casts a shadow that is 8 feet long. How tall is the pine tree?
asked by stoker 
Physics
Two charges +q and −q are separated by a distance d=50 cm. The electric field lines for this system form the the wellknown pattern showed in the figure below. Consider two lines L1 and L2 lying on the same plane and leaving the positive charge at
asked by Brian 
Physics
A thin aluminum ring hangs vertically from a torsion spring. A torsion spring when twisted exerts a restoring torque given by τ=−κθ where θ is the angle of twist. Suppose that the ring undergoes small torsional oscillations while it is being cooled
asked by Nick 
Stats
Two dice are tossed. What is the probability that the sum of both dice is a prime number? this is the answer i have ; Presuming two fair, 6sided dice, each numbered 1 through 6: You can achieve one of the following results on any given roll: 2, 3, 4, 5,
asked by Megan 
business math
What would be the compound amount after 19 years on an investment of $42,000 with an 11% interest rate compounded annually?
asked by keionna 
Statistics
What critical value for z would be used to test the hypotheses: H0:μ≤10 and Ha:μ>10, for α = 0.05 ?
asked by Karina 
physics
The hammer throw is a trackandfield event in which a 7.30kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground some
asked by donny 
Chemistry
An antacid contains 200mg of aluminum hydroxide and 200mg of magnesium hydroxide per capsule. a. How many moles of Al(OH)3 does each capsule contain? 2.56 x 10^3 mol Al(OH)3 is that correct? b. What is the mass in milligrams of 0.0457 mole of magnesium
asked by Tiffany 
physics
starting from rest, find a 54.6kg child’s speed at the bottom of a 15.5m tall slide if it is assumed to be frictionless
asked by justin 
english
you are a speaker in a school debate write for or gainst,boys should not help in the kitchen
asked by sharif 
Momentum and impulse
You stand at the end of a long board of length L. The board rests on a frictionless frozen surface of a pond. You want to jump to the opposite end of the board. What is the minimum takeoff speed v measured with respect to the pond that would allow you to
asked by Anonymous 
chemistry 1st year
A 5 liter vessel contains 2g of hydrogen and 28g of nitrogen at 27 temperature.find to total mixture ?
asked by mirza 
Math
Which fraction is equivalent to 5/6 (divided sign) 1/3? 5/18 2/5 1and 1/6 2and1/2
asked by Sunny 
physics
Suppose two carts, one twice as massive as the other, fly apart when the compressed spring that joins them is released. How fast does the heavier cart roll compared to the lighter cart?
asked by Anonymous 
Physics
You stand at the end of a long board of length L. The board rests on a frictionless frozen surface of a pond. You want to jump to the opposite end of the board. What is the minimum takeoff speed v measured with respect to the pond that would allow you to
asked by Anonymous 
Math
Which fraction is equivalent to 5/6 * 1/3 ? 5/18 2/5 1 and 1/6 2 and 1/2
asked by Sunny 
Math
a/6=33
asked by Anonymous 
general physics
His spacecraft, Vostok I, was a sphere about 2.3 m in diameter, and it reached a maximum altitude above Earth’s surface of 327 km. What was the spacecraft’s speed at this point in its orbit?
asked by justin 
general physics
COMPLETELY STUCK? The period of rotation of the Moon is about 27 days, 8 hrs. The mass of the Moon is 7.35 x 1022 kg, and the radius of the Moon is 1.74 x 106 m. I wish to place a synchronous (period of orbit = period of the Moon’s rotation) satellite in
asked by justin 
Math
Oatmeal Recipe: Water 3/4 cup Salt: 1/4 teaspoon Oats: 1/3 cup If the least possible multiple of the recipe above is prepared so that a whole number of cups of both water and oats are used, how many teaspoons of salt would be required?
asked by Emily 
Math
If 1 more than a certain number is 3 less than a second number, the larger of these numbers minus the smaller is equal to?
asked by Emily 
algebra 1 NEED NOW!!! PLEASE HELPPP
The height of a soccer ball that is kicked from the ground can be approximated by the function: y = 12⋅x^2 + 48⋅x where y is the height of the soccer ball in feet x seconds after it is kicked. Find the time it takes the soccer ball to reach its
asked by lisa 
Algebra 2
Using the integers 2,3,4,5, How many 3digit odd numbers less than 300 can be formed if no repetition of digits is allowed? Please explain and show work.
asked by Anonymous 
Math
Each plant of a certain variety yields 50 seeds in the early fall and then dies. Only 40 percent of these seeds produce plants the following summer and the remainder never produce plants. At this rate, a single plant yielding seeds in 1986 will produce how
asked by Grace 
Statistics
A company has developed a new type of light bulb, and wants to estimate its mean lifetime. A simple random sample of 12 bulbs had a sample mean lifetime of 692 hours with a sample standard deviation of 30 hours. It is reasonable to believe that the
asked by Sara 
Physics
A 13,900 kg truck is moving at 23.5 m/s on a mountain road when the brakes are applied. The brakes FAIL!! Fortunately, the driver sees a deceleration (ouch!) ramp a short distance ahead. This is an incline used by out of control trucks to dissipate their
asked by justin 
physics
A 34.1 kg child rides a Ferris wheel whose diameter is 18.3 m. When the ride is turning at a constant rate, the child’s speed has a constant value of 4.23 m/s. Find the normal force the seat exerts on the child at: a) The top of the ride b) The bottom of
asked by justin 
Calculus
A television camera is positioned 2500 ft from the base of a rocket launching pad. The angle of elevation of the camera has to change at the correct rate in order to keep the rocket in sight. Also the mechanism for focusing the camera has to take into
asked by Robin 
Math(work problem)
A man can do the job in 8 days after 3 days of working a new guy help him and it takes 3 more days to finish the job together. how long will it take the new guy to finish the job alone?
asked by HELP HELP MHNS 
Algebra 1b
v = pi r squared h for h
asked by Tiarra 
Chemistry
If I have 1.93 x 10^6 mole of chromium that would equal 100.35 mcg correct?
asked by Tiffany 
Math 17
What is the proof of theorem 2.23, where (b/a)+(d/c)=[(bc)+(ad)]/(ac). Thank you :)
asked by Rob