Thursday

September 18, 2014

September 18, 2014

Total # Posts: 3,246

**Physical Science**

Sound travels about 1530 m/s in sea water. How many times faster does sound travel in sea water than in air? (The speed of sound in air at 25°C is about 345 m/s.)
*October 24, 2012*

**chemistry **

onic compounds have names that... (choose all that apply) might contain Roman numerals. might start with ammonium. start with the name of an anion. have prefixes, like di or penta. start with the name of a nonmetal.
*October 22, 2012*

**chemistry **

What is the chemical formula of the compound that forms between lithium (Li) and phosphorus (P)?
*October 22, 2012*

**math**

-2a+2=-14 -2a=-16 a=-16/-2 a=8
*October 22, 2012*

**Accounting**

I am given several hypothetical amounts and interest rates and need to find the amount of the rental payments. (Lessee-Lessor Entries; Sales-Type Lease) On January 1, 2011, Palmer Company leased equipment to Woods Corporation. The following information pertains to this lease. ...
*October 22, 2012*

**math**

Tina'goal this month is to earn$10,000.She earns $13,500 in total. What percentage did she meet her goal
*October 21, 2012*

**business**

why might a buyer want to participate in an industry consortium marketplace instead of setting up their own business
*October 18, 2012*

**business**

describe 3 departments that should be included in a small towns web site
*October 18, 2012*

**Physics**

Thank you!
*October 18, 2012*

**Physics**

would the radius be half of the 0.40m?
*October 18, 2012*

**Physics**

correction the velocity is 0.7 m/s
*October 18, 2012*

**Physics**

Determine the tension in a 40 cm long pendulum when a bob of mass 200g moving at 0.7 m.s is 15 degrees from the vertical?
*October 18, 2012*

**math**

how many feet are in 4 yards
*October 17, 2012*

**science**

Is glucose molecules broken down in both hases of respiration?
*October 17, 2012*

**science**

need help with what are the raw materials of respiration and their products?
*October 17, 2012*

**english**

Is the verb intransitive or transitive in this sentence? Jazz began in New Orleans.
*October 17, 2012*

**GEN 105**

• Describe how each practice activity reinforced or contradicted something about yourself
*October 17, 2012*

**Math**

What is the difference between counting the spaces between whole numbers and counting the tick marks?
*October 16, 2012*

**Statistics**

If you roll two dice what is the probablity of getting one 2? I think the answer is 1/6 but I'm not sure
*October 13, 2012*

**chem**

Yes, your states of matter are wrong. Since they are aqueous solutions, hydrogen and hydroxide should be written as (aq) not (g) since niether are gases.
*October 13, 2012*

**physics**

what device could use th earth's magnetic felds to produce energy and how it would work?
*October 12, 2012*

**Math**

a) Find the product (1/2x2+y2) x-y b) Simplyfy 5/3a2b x (-3/4ab3) x (-4/5a2b2) and find the value for 2= -2 and b= 1. c) Divide x (5x2 - 80 by 5x (x+4). Thanks in anticipation.
*October 8, 2012*

**Math**

what is the written form of .6045?
*October 5, 2012*

**MATH**

DIVIDE 64 BUNDLES OF NEWSPAPERS INTO TWO GROUPS SO THE RATIO IS 3 TO 5
*September 30, 2012*

**algebra**

Thank you
*September 26, 2012*

**algebra**

making linear equation from word problem At low altitudes, the altitude of a parachute and time in the air are linearly related. A jump at 2,880 ft use the US army T-10 parachute system last 120 sec. (A) find a linear model relating altitude a (in feet) and time in the air t (...
*September 26, 2012*

**algebra**

Thank you so much
*September 26, 2012*

**algebra**

making linear equation from word problem An airspeed indicator on aircraft is affected by changes in atmospheric pressure at different altitudes. A pilot can estimate the true airspeed by observing the indicated airspeed and adding it about 2% for every 1,000 feet of altitude...
*September 26, 2012*

**algerbra**

24+61+b+3a+b+3d How do you do this?!
*September 24, 2012*

**culral anthropology**

in anthropology the term culture referes to what
*September 23, 2012*

**analytical chemisty**

Calculate the pH and pOH of a 0.00002M solution of acetic acid.
*September 23, 2012*

**chemistry**

so 1508=18.36*26.37*x?
*September 23, 2012*

**chemistry**

A metal ring with a mass of 18.36 g undergoes a change in temperature of 26.37 oC. The energy change, or heat, required for this change in temperature is 1508 Joules. What is the specific heat of the ring?
*September 23, 2012*

**Trig**

A cylindrical tank, 6 foot in radius, lies on it's side parallel and against the side of a warehouse. A ladder leans against the building, passes over and just touches the tank, and has a slope of -3/4. Find the equation of the ladder and the length of the ladder
*September 23, 2012*

**science 7 grade**

You place 75 mL sea wter in a graduated cylinder with a mass of 55 grams mass of sea water and cylinder together is 140 grams what is the density of the sea water g/mL
*September 23, 2012*

**Math**

I have The Exact same problem I'm trying to Get all my missing work (the homework i dident do) Into the teacher and if your test grades are really low like mine you should probably get tutoring or ask a kid in the class to help you out But since progress reports are coming...
*September 20, 2012*

**math**

A jumbo jet carries 150 passengers, 30 in first class and the remainder in coach. If the average first class ticket is $550 and the average coach ticked is $150, how much will the airplane gross if the plane is full?
*September 20, 2012*

**GEOMETRY**

What is the distance between points (3, 1) and (0, –5)? Round to the nearest tenth.
*September 19, 2012*

**geometry**

Naomi draws a portion of a figure as shown. She wants to construct a line segment through R that makes the same angle with as .
*September 19, 2012*

**Biology/Biotany**

the rise of water in plants is presently most satisfactorily explained by which element: magnesium, sulphur, calcium, phosphorus, or manganese?
*September 16, 2012*

**science**

An airplane flies due north at 235 km/h relative to the air. There is a wind blowing at 65 km/h to the northeast relative to the ground. What are the plane's speed and direction relative to the ground?
*September 16, 2012*

**algebra**

t= ((square root of x)/4) + (x/1100), t=14, solve for x
*September 15, 2012*

**algebra**

algebra with pizzazz!In music,what does allegro means?
*September 13, 2012*

**Health**

What is bone strengthening? A. Activities that produce a force on the bones that promote bone growth and strength B. Activities that produce greater elasticity of joints C. Activities that heal injuries and diseases associated with the bones D. None of the above I need help ...
*September 13, 2012*

**computer**

assuming a disk should never get 85% full and assuming you were generating 200MB of new data per week, at what point would you need to add another hard disk?
*September 12, 2012*

**Math**

Thanks, Steve! They are stand alone questions, so I'll ask my teacher what he means.
*September 11, 2012*

**Math**

Unit circle.... ugh. Probably have to make estimates, if I'm not to use a calculator.
*September 11, 2012*

**Math**

Well, now I'm just over thinking things...
*September 11, 2012*

**Math**

Actually it probably has something to do with trig identities...
*September 11, 2012*

**Math**

Correction, I should have said convert it to radians using a calculator or convert to radians using this conversion thingy: pi/180 degrees
*September 11, 2012*

**Math**

An other question states: "Solve: sin(35)" Again, same idea, how should I take this question? Should I just convert it into radians or should I just enter it into a calculator? The way they word these review questions are confusing to me. They should really be more ...
*September 11, 2012*

**Math**

Hello, I'm doing a review sheet for math and a certain question states: "solve: ln(3/4)" What should I take solve to mean? Do I just change it's form to ln(3/4) = ln3 - ln 4 ? Or, perhaps, I need to actually enter in the value into a calculator. How would you...
*September 11, 2012*

**windows 7**

asssuming a disk should never get 85% full & assuming you were generating 200 MB per week of new data, at what point would you need to add another hard disk?
*September 11, 2012*

**Science**

What would be a good sentence to describe Prime Meridian to a fourth grader?
*September 10, 2012*

**chem(molarity)**

a buffer contains 0.010 mol of lactic acid and 0.050 mol of sodium lactate per liter . How do I find the molarity of the acid and base?
*September 9, 2012*

**childcare**

A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by A. classical stage theory B. probility theory C. locomotion-x theory D. Piaget`s ...
*September 8, 2012*

**Theory to Practice**

What fundamental motor patterns do girls tend to have than boys? a. throwing and kicking b. hopping and skipping d. running and jumping
*September 8, 2012*

**Theory to Practice**

Which of the following is an obstacle to learning for a beginning learner? A.Knowledge of what elements of the movement to focus on B. Chronic indifference characteristic between birth and age three C. Shorter time to monitor perceptual input from the visual system D, ...
*September 7, 2012*

**algebra**

answer to 6r-6-3=15
*September 6, 2012*

**social studies(femist)**

Why do some women feel uncomfortable calling themselves feminist?
*September 6, 2012*

**Human Services**

where can I find examples for these questions? How has the way in which nonprofit organizations acquire funding changed over recent years? What implications do you see this having on the organization you have analyzed above? Consider who is giving to organizations and the ...
*September 5, 2012*

**Elementary Statistics**

Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. Using Chebyshev’s theorem, what do we know about the percentage of women with heights that are within 2 standard deviations of the mean? What are the minimum and ...
*September 4, 2012*

**math**

A man buys 3 items for $100. Each item is 50% less than the first. Total of all 3 has to be $100. Is this possible?
*September 3, 2012*

**Financial accounting 2**

If a building cost $600,000, has an estimated residual value of $240,000, has an estimated life of 36 years, and is depreciated by the straight-line method: a) What is the annual depreciation? b) what is the book value at the end of the 20th year?
*September 3, 2012*

**math**

Write the first six terms of each of the sequences whose nth term is a)(-3)n { ____, ____, ____, ____ , ____, ____ } b)3 – 4n { ____, ____, ____, ____ , ____, ____ }
*September 1, 2012*

**math**

how many dimes equal the same total amount as 1,000,000,000 pennies?
*August 30, 2012*

**math**

explain how you know the 6 in 364,021 is NOT in the thousands place.
*August 28, 2012*

**physics**

why it is easier to tear a paper off a full roll than a mostly used one? Is it because of Newton's law?
*August 26, 2012*

**math**

Identify the property of integers being illustrated in each of the following: johmmy a. (-2)(3)€ I b. (-4)0=0 c. -2(3+4)= -2(3)+(-2)4 d. (-2)3=3(-2)
*August 24, 2012*

**math**

95(12) + 24x = 5340 solve for x Simplify the following using properties of exponents. Leave answers as powers. 6^2.2^2.3^2 =
*August 21, 2012*

**math**

Using the distributive property of multiplication over addition, we can factor as in x2 + xy = x1x + y2. Use the distributive property and other multiplication properties to factor each of the following: 47.99 + 47 (x+1)Y +(X+1) x^2y+z^x3
*August 21, 2012*

**math**

The amount of bacteria after n min if the initial amount of bacteria is q and the amount of bacteria triples every 30 sec. (Hint: The answer should contain q as well as n.)
*August 18, 2012*

**math**

If two sets are subsets of each other, what other relationships must they have?
*August 18, 2012*

**math**

The following sets of ordered pairs are functions. Give a rule that could describe each function. Please show your work. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}
*August 18, 2012*

**math**

it is 17 not 7
*August 18, 2012*

**math**

well just wanted to see how you worked the answer
*August 18, 2012*

**math**

The following sets of ordered pairs are functions. Give a rule that could describe each function. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}
*August 18, 2012*

**math**

In the following, write an expression in terms of the given variables that represents the indicated quantity: a. The cost of having a plumber spend h hr at your house if the plumber charges $30 for coming to the house and $x per hour for labor b. The amount of money in cents ...
*August 18, 2012*

**math **

The following sets of ordered pairs are functions. Give a rule that could describe each function. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,7),(5,26)}
*August 18, 2012*

**physics**

which one best describes appr. uniform velocity? 1. a hockey puck sldng across the ice 2. a baseball pitched toward a batter 3. the tip of the minute hand on a clock 4. an olympic sprinter running the 100m
*August 17, 2012*

**math**

Can you make, using any math symbols, make four 8s equal 5?
*August 16, 2012*

**prealgebra**

At the same time that a 60-foot tall building casts a shadow that is 21.5 feet long, a nearby tree casts a shadow that is 18 feet long. Which measure is closest to the height of the tree?
*August 15, 2012*

**OCHEM**

I have the same question and it doesn't have any impurities.
*August 12, 2012*

**english**

oh yes, it's versus. Also, from the links you gave me, I found that versus means opposite. Thank you really much !!
*August 5, 2012*

**english**

antennae, involuntary , vesus Does any of those words mean opposite or contrasted with??
*August 5, 2012*

**books **

what is the theme for the book called OKAY FOR NOW
*August 5, 2012*

**english **

what is a theme give examples
*August 5, 2012*

**math**

35 is what percentage of 175?
*July 30, 2012*

**math**

the mean of a list of seven numbers is 45. if i add two numbers to this list the mean of he list becomes 37 what is the mean of the two numbers that i added to the list
*July 27, 2012*

**chemistry**

What is the electronic transition for LiCl using this equation 1/(7.01 ×〖10〗^(-7) )= R_H (1/4- 1/(n_f^2 ))
*July 25, 2012*

**english**

Comparison and contrast
*July 24, 2012*

**chemistry**

What is the amount of heat required to turn 1 g of ice into vapor directly without forming a liquid first?
*July 24, 2012*

**Chem 22**

3.5 cm of Mg ribbon(0.009729 g/cm0 reacts with HCL to produce 32.6 ml. of Hydrogengas at 750 mm Hg and 20 degree C. the vapor pressure of water at 20 degree C is 17.5 mm Hg. Calculate the molar volume of hydrogen (L/mole) and the percent error in your determination
*July 23, 2012*

**Chem 22**

3.5 cm of Mg ribbon(0.009729 g/cm0 reacts with HCL to produce 32.6 ml. of Hydrogengas at 750 mm Hg and 20 degree C. the vapor pressure of water at 20 degree C is 17.5 mm Hg. Calculate the molar volume of hydrogen (L/mole) and the percent error in your determination
*July 23, 2012*

**Chem 22**

2.00 grams of hydrocarbon warmed 150.0 ml. water from 25.0 degree C to 30.0 degree C. Calculate the heat of hydrocarbon in K/g. the specific heat of water is 4.184 J/g. degree C
*July 23, 2012*

**PED212**

Reflect on how your perceptions of physical education have changed based on your understanding of its evolution.
*July 19, 2012*

**chemistry**

Thanks Dr. Bob! :D You're the best!
*July 18, 2012*

**chemistry**

I will give an "illustration" as to how I found it. ============ll ll ll========= ll ll ll@ ll ll========= ll ============ll. All the parallel lines illustrate the hot water bag and how it was folded. The "@" is to represent the earphones hidden in the ...
*July 18, 2012*

**chemistry**

Hello, this question is purely out of curiosity, please help to enlighten me. A hot water bag (one of those rubber ones with the rubber stopper at the top you screw in) was hidden under my bed for about a month. It was filled with a bit of water and folded in half during this ...
*July 18, 2012*

**maths**

You deposit $10,000 in an account earning 4% interest compounded monthly. a. How much will you have in the account in 25 years? b. How much interest will you earn?
*July 18, 2012*

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