# Damon

Newest questions posted by Damon-
## Math

What is 3 tens plus 52 and 11? Write your answer in 3 forms. -
## Math

At the same store, Peter bought 2 pairs of pants and 5 shirts for $61, and jissica bought 3 pairs of pants and 2 shirts for $64. How much does 1 pair of pants cost? ~Please explain this problem to me -
## math

A bag contains 2 white marbles amd 3 green marbles. Two marbles are drawn at random, one after the other. The first marble is replaced before the second one is drawn. What is the probability that the first marble is green and second one is white? -
## Physics

An object of mass 1.00kg is moving over a horizontal circular path of radius 2.00m, with a speed of 3.00ms^-1. Determine: (a) its centripetal acceleration (b) its kinetic energy (c) its period (d) its angular velocity -
## Chemistry

Dissolved 0.7500 g calcium chloride dihydrate and impure, in distilled water and the volume was elevated to 200.00 mL in a volumetric flask. A rate of 10.00 mL of the same consumed the titration 18.9 mL 0.0125 M EDTA using CALCON as indicator. What is the -
## Chemistry

Dissolved 0.7500 g calcium chloride dihydrate and impure, in distilled water and the volume was elevated to 200.00 mL in a volumetric flask. A rate of 10.00 mL of the same consumed the titration 18.9 mL 0.0125 M EDTA using CALCON as indicator. What is the -
## Chemistry

Dissolved 0.7500 g calcium chloride dihydrate and impure, in distilled water and the volume was elevated to 200.00 mL in a volumetric flask. A rate of 10.00 mL of the same consumed the titration 18.9 mL 0.0125 M EDTA using CALCON as indicator. What is the -
## check my spanish 3

escriba la forma del verbo indicado en el tiempo indicado yo/ tener/ futuro My answer is tendré -
## algebra 2

Create a set of data with 5 numbers that satisfy all of the following conditions: 1. the range is 10 2. the mean is 20 3. the median is 22 -
## Chemistry

sample of silver metal is suspected to be contaminated with zinc. A 0.2365 g portion of this metal is dissolved in nitric acid and the silver ions precipitated with excess aqueous NaCl. After filtering and drying, the mass of the precipitate is found to be -
## Algebra 2

How much larger is the area of the circle enclosed by x^2 + y^2 = 100 than the area of the circle enclosed by x^2 + y^2 = 25? -
## Chemistry

If the pH of a 0.46 M aqueous solution of a weak base is 9.2, estimate the Kb of the base: -
## Chemistry

C2D3 has a solubility product constant of 9.14×10−9. What is the molar solubility of C2D3? Express your answer with the appropriate units. -
## Chemistry

How much H3PO4 is needed to neutralize 1 liter of a 0.75M solution of NaOH? (in moles) -
## Chemistry

What volume of nitrogen dioxide (in L) is produced from the complete reaction of 16.87 of lead (ii) nitrate at STP -
## Math

For what value(s) of r is r^2+5r+6/r+2 equal to 0? A) -2 only B) -3 only C) 3 only D)-2 or -3 E) 2 or 3 I got A but it is incorrect and I'm still confused Thanks -
## Chemistry

How many grams of hydrogen peroxide (H2O2) must be added to 1,500 ml of water to produce a concentration of 1.33 m (molal solution)? -
## Chemistry

Marcela dissolves 80.0 g of ammonium nitrate in 50.0 mL of water at room temperature and notes that the temperature of the solution decreases by 5.0°C. Which correctly designates the signs of changes of G, S and H for this reaction? -
## Chemistry

N2H4 + 2H2O2= N2 + 4H2O What are the mole ratios of hydrazine (N2H4) to hydrogen peroxide (H2O2) and hydrazine to water -
## life orientation ?

Is it a violation of my human rights to be asked the same question time after time, day after day, week after week until I am ready to scream? -
## Chemistry

The molar solubility of a generic substance, Mg(OH)2 ksp = (1.2x10^-11) in 0.10 M NH3 Kb = 1.8 x 10^-5 help me please =) -
## Typos, math, physics

Would everyone who posted math and physics problems this morning please go back and check for typos? It is difficult to guess what you mean and we do not have your text book. -
## stastic

Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01 (Points -
## physics

A steel ball with a mass of 0.65 kg is swinging in a circle with a radius of 1.3 meters at a speed of 17m/s. What is the centripetal force? -
## Physics

A baseball is thrown horizontally from a height of 3.6 meters at a speed of 24 m/sec. How far will it travel along the ground? -
## Chemistry

If there are 25 mg of water in a typical drop of water, how many drops of water would react completely with 2 mmol of phenylmagnesium bromide? How do I set up the problem? -
## Chemistry

Compare the physical and chemical properties of acids and bases. -
## Cassie - please check this earlier question!

http://www.jiskha.com/display.cgi?id=1390506771 -
## Steve - Damon is not sure!

Steve, I am not sure about this: http://www.jiskha.com/display.cgi?id=1390496194 Damon -
## physics

The latent heat of fusion for water is 33.5 × 104 J/kg, while the latent heat of vaporization is 22.6 × 105 J/kg. What mass m of water at 0 °C must be frozen in order to release the amount of heat that 2.32 kg of steam at 100 °C releases when it -
## Math

The separation between goalpost uprights in college football changed from 23 feet 4 inches to 18 feet 6 inches. What percent reduction was this? -
## Math

Please help! How do I find the mean weight of 2 groups of 100 kids... 1st grp mean weight is 55.7lbs and 2nd grp mean weight is 42.6lbs. -
## Algebra

x/-14 -
## college stats

can someone please explain the steps: suppose that the grade point average,denoted by X,of a university student is Normally distributed with the mean 2.786 and standard deviation 0.375 A). a student is on the deans list if her GPA exceeds 3.746. What -
## philosophy

what philosopher would refute Glaucon's definition of justice in the Republic? -
## geometry

I need help on this question. Write the contrapositive,converse,and inverse of the statement.Determine if its true or false.If its false give a coynterexample. If I live in Redlands,then I live in California. -
## Bob Pursley

I can not copy and paste to the board. -
## Statistics

Consider a binomial experiment with 520 trials and 200 successes. To construct a test for a proportion p, what value do we use for the sample test statistic? Round your answer to two decimal places. -
## math

make an ordered stem-and-leaf plot of the data, 16.9,17.8,16.3,16.4,17.8,18.1,15.4,16.8,17.1,18.3,15.5,16.2,17.9 -
## geometry

a regular hexagon is composed of 12 congruent 30,60,90 degree triangles. if the length of the hypotenuse of one of those triangles is 18 square root 3 find the perimeter of the hexagon -
## geometry

a parallelogram has the vertices (-1,2), (4,4), (2,-1), and (-3,-3). determine what type of parallelogram. find the perimeter and area. i found the parallelogram part and its a rhombus but i cant find the perimeter and area -
## geometry

A regular hexagon is composed of 12 congruent 30-60-90 triangles. If the length of the hypotenuse of one of those triangles is 18 square root 3, find the perimeter of the hexagon. -
## ???how do i thank Ms.Sue

Thank you -
## 3rd grade math

WRITING TO EXPLAIN. How can you use models to show and name the number 1,400 in two different ways? Explain. -
## History

Was there any possibility that the British empire could have been repaired after the Intolerable acts? -
## 9th grade

A collective noun is plural when the group acts as a unit (i.e., "The team lost their fourth game in a row."). -
## Chemistry

Name one metal ion that's not multivalent. Hydrogen? -
## Chemistry

How did the metal atoms become ions? Metal atoms became ions by losing electrons to form positively charged ions(cations). How did the nonmetal atoms become ions? Nonmetal atoms became ions by gaining electrons to form negative ions(anions). -
## grammar not grammar

Driving me crazy -
## Old -Linear programming - up where it may be found

Posted by Anonymous on Wednesday, November 26, 2008 at 8:49pm. P=-30x+25y Subject to 2x+3y>=30 2x+y=30 when x = 0, y = 10 when x = 15, y = 0 area above that line is in our region (are you sure your arrow is correct?) second constraint #2 2x+y -
## Craig - baloon - calculus moved up

Posted by Craig on Tuesday, November 25, 2008 at 7:54pm. t: 0 2 5 7 11 12 r'(t): 5.7 4.0 2.0 1.2 0.6 0.5 The volume of a spherical hot air balloon expands as the air inside the balloon is heated. The radius of the balloon in feet is modeled by a -
## jennifer - Grand Canyon

d = (1/2)g t^2 in feet, seconds units g = 32 ft/s^2 approximately so d = 16 t^2 t^2 = d/16 t = (1/4)(sqrt d) if d = 5280 t = .25 (sqrt 5280) = .25 * 72.7 =18.2 seconds -
## Guido KIRA odds and evens

KIRA did not have to add the odds and the evens. It was a trick question. Each difference is one. one times five = five -
## dr wls - physics freak design problem

wls, If you get a chance could you look at the "a bit challenging" problem down a little from here. I am not sure my idea is the best. -
## Julia - Green's theorem

Sorry, I did not see your question ================================= Posted by julia on Monday, December 10, 2007 at 9:15pm. Can someone show me step by step how to work this problem out please. Let C be the triangle with vertices (0,0), (1,0), and (1,2). -
## physics

The distance from earth to the center of the galaxy is about 22500 ly (1 ly = 1 light-year = 9.47 1015 m), as measured by an earth-based observer. A spaceship is to make this journey at a speed of 0.9995c. According to a clock on board the spaceship, how -
## physics-RC Circuit

We had to do a RC Circuit experiment in the lab one step in the procedure goes as follows: Record the time needed to discharge a capacitor from 10.0 V to 9,8,7,6,5,4,3, and 2 V. Repeat once. The QUESTION BEING ASKED IS: Can you find the time to discharge -
## physics

A film of oil that has an index of refraction equalto 1.45 floats on water (n = 1.33). When illuminated by white light at normal incidence, light of wavelengths 629 nm and 449 nm is predominant in the reflected light. Determine the thickness of the oil -
## physics

In the experiment of Lloyd's Mirror, I understand what happens when a light beam is shone on a mirror and reflected, and it is phase shifted by 180 degrees. But what I don't understand is what a phase shift actually is. Can someone explain? The electric -
## accounting

Forecasting payments; If a firm pays its bills with a 30-day delay, what fraction of its purchases will be paid for in the current quarter? In the following quarter? What if its payment delay is 60 days? -
## accounting

Credit Policy Review The president, vice president, and sales manager of Moorer Corporation were discussing the company’s present credit policy. The sales manager suggested that potential sales were being lost to competitors because of Moorer -
## electrical engineering

Instructions The goal of this project is to design, simulate, build and test a simple speaker system that can connect to a portable audio device such as an mp3 player or laptop. The system has the following requirements: § Accept a standard head-phone -
## math

a 15 foot long standard weight pipe with a diameter of 4 inches is filled with water. what would be the total approximate weight of the pipe and the water it contains? If I recall my non-metric units, 1 cubic foot of water weighs about 62.4 pounds. the -
## chem

in the design of parts, it is genarally a good idea to avoid region or points ofstress concentration since these regions are susceptible to corroisn. give examples of the things that can be done to avoid stress raisers. salt(NaCl) is stored in an -
## physics-force

A uniform ladder is 10 cm long and weights 400 N. It rests with ists upper end against a frictionless vertical wall. Its lower end rests on the ground and is prevented from slipping by a peg driven into the ground. The ladder makes a 30 degrees angle with -
## physics-intensity

The intensity of a certain sound wave is 6 ì W.cm2. if its intensity is raised by 10 decibels, the new intensity (in ìW/cm2) is : a. 60 b. 6.6 c. 6.06 d. 600 E. 12 You can calculate this if you wish using logs, but you can do it in your head: 3 db means -
## math

Find the binary equivalent of x^8+x^3+x+1 x^1000 + x^11 + x + 1 I just converted the decimal-format exponents to binary format (0's and 1's times powers of 2). The reason you did not get a reply so far is that most of the tutors have probably never heard -
## physics

i need some help wih this, thanks!! Blocks A and B are moving toward each other along the x axis. A has a mass of 2.0 kg and a velocity of 50 m/s ( in the positive x direction ), while B has a mass of 4.0 kg and a velocity of -25 m/s ( in the negative x -
## physics-speed

i need help with this one thanks A particle starts from rest and is acted on by a net force that does work at a rate that is proportional to the time t. The speed of the particle is proportional to: a. sq. root t b. t c. t^2 d.1/sq. root t e. 1/t Work done -
## physics

hi im having trouble with this i think the answer is zero! can u guys double check ty if there are three blocks tied together, with a force enacted on the first block, the net force on the middle block is..... a. zero b. F/3 c. F/2 d. 2F/3 e. F This cannot -
## chem

Forty-two grams of benzoic acid is treated with concentrated nitric acid in some sulfuric acid. Forty-two grams of the major expected organic product is isolated. What is the percentage yield for this experiment? Give an equation with structural formulas -
## chemistry

There are three xylenes. Their melting points are 13 degrees C, -24 degrees C, and -48 degrees C. Nitration of the isomer with the 13 degree C mp results in only one mononitrated product. The isomer with mp= -24 degree C gives two mononitrated products,