Monday

July 6, 2015

July 6, 2015

Total # Posts: 1,281

**Physics**

Your town is installing a fountain in the main square. If the water is to rise 14 m (45.9 feet) above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal to 100,000 Pa.
*April 29, 2013*

**Math**

What is length of DF if DE and EF are equal and EF is 4 meters?
*April 22, 2013*

**english**

Hi Alyson, did you find the answer for your question?
*April 16, 2013*

**catherine junior school**

I have 9 Numbers which are -4, -3, -2, -1, 0, 1, 2, 3, 4 i have to put these in a 3 x 3 square grid. The numbers have to add up to one majic number. Is there a logical way to do this??????
*April 13, 2013*

**Calculus**

the measurement on one side of a right triangle is found to be 9.5 inches inches, and the angle opposite that side is 27 degrees,45' with a possible error of 15'. (round answers to two decimal places) a) Approximate the percent error in computing the length of the ...
*April 5, 2013*

**MAth**

the measurement on one side of a right triangle is found to be 9.5 inches inches, and the angle opposite that side is 27 degrees,45' with a possible error of 15'. (round answers to two decimal places) a) Approximate the percent error in computing the length of the ...
*April 5, 2013*

**math**

how much would adam have to deposit in a saving account to earn 100 dollars in interest over 4 years at 5% simple annual interest rate.
*April 3, 2013*

**MAH**

CHAD BUYS PEANUTS IN 2-POUND BAGS. HE REPACKAGES THEM INTO BAGS THAT HOLD 5/6 POUNDS OF PEANUTS. HOW MANY 2-POUND BAGS OF PENUTS SHOULD CHAD BUY SO THAT HE CAN FILL THE 5/6 POUND BAGS WITHOUT HAVING ANY PEANUTS LEFT OVER?
*April 3, 2013*

**Math**

What is the rotational symmetry as a fraction of a turn and the angle of the smallest turn of letter I
*April 3, 2013*

**chemistry**

a) 3 b) 1s^3 2s^3 2p^2 c) 12
*April 2, 2013*

**Physics**

A stone is thrown from the edge of a cliff into the ocean below. It is thrown somewhat upward, but mostly outward. The stone has a mass of 2.0kg and is thrown with a speed of 10m/s from an initial height of 5.0m above the ocean. A. What is the kinetic energy of the stone when ...
*April 1, 2013*

**Physics**

A stone is thrown from the edge of a cliff into the ocean below. It is thrown somewhat upward, but mostly outward. The stone has a mass of 2.0kg and is thrown with a speed of 10m/s from an initial height of 5.0m above the ocean. A. What is the kinetic energy of the stone when ...
*April 1, 2013*

**7th Grade Social Studies**

11. c 12. a 13.b 14. c 15. b 16. d 17. b
*March 29, 2013*

**math**

find three sets of values for x and y to make x mi/y min= 4 mi/ 32 a proportion.
*March 18, 2013*

**math**

find three sets of values for x and y to make x mi/y min= 4 mi/ 32 a proportion.
*March 18, 2013*

**math**

find three sets of values for x and y to make x mi/y min= 4 mi/ 32 a proportion.
*March 18, 2013*

**Quantum Physics**

Alice and Bob share a state a| + +> + b |- -> , where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit to end up in the state a |0> + b |1&...
*March 12, 2013*

**Quantum Physics**

Alice and Bob share a state a| + +> + b |- -> , where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit to end up in the state a |0> + b |1&...
*March 12, 2013*

**Quantum Physics**

1.Provide a unitary that maps |+> to |1>and |-> to |0> . Enter 0 in all boxes if no such unitary exists. (In this case, you have to enter 0 explicitly. Blanks are not accepted.) 2.Provide a unitary that maps |+> to|0> and |-> to |+> . Enter 0 in all ...
*March 12, 2013*

**math**

5. Bert is planning to open a savings account that earns 1.6% simple interest yearly. He wants to earn exactly $192 in interest after 2 years. How much money should he deposit?
*March 9, 2013*

**LA**

Who said " give me a pencil or give me death"?
*March 7, 2013*

**Chemistry**

4 2 3 4 2 1
*March 7, 2013*

**corporate finance**

asd
*March 4, 2013*

**physics**

did you get the answer pls?
*March 4, 2013*

**science**

are carbon particles and sugar an element, compound,solution, or heterogeneous mixture?
*February 28, 2013*

**physics**

Suppose that a qubit is in the state |Ï†âŒª = a|0âŒª + 1 âˆ’ a2 |1âŒª where a âˆˆ [âˆ’1, 1]. If we ï¬rst perform a standard basis measurement on this qubit ...
*February 18, 2013*

**physics**

Consider the state |ÏˆâŒª = âˆš2 |0âŒª + âˆš2 |1âŒª from the previous question. To estimate the phase Î¸, we measure |ÏˆâŒª in the sign basis. What ...
*February 18, 2013*

**chemistry**

A compound with the percent composition shown below has a molar mass of 60.10g/mol. Find its molecular formula: C, 39.97% H, 13.41% N, 46.62%
*February 15, 2013*

**Math **

Tennis has 2 players,basketball 5 Fabio says that there are 3 times as many peoplein a basketball team as on a tennis team. Is he correct? Explain
*February 14, 2013*

**Math**

Alice and Finn roll two number cubes. Which of the following rules will make the game fair?
*February 14, 2013*

**History **

Is the Emancipation Proclamation an example of fact, opinion, propaganda, or bias?
*February 13, 2013*

**physics**

A 1-m-tall barrel is closed on top except for a thin pipe extending 5 m up from the top. When the barrel is filled with water up to the base of the pipe ( 1 m deep ). The water pressure on the bottom of the barrel is 10 kPa. What is the pressure on the bottom when water is ...
*February 10, 2013*

**MAth**

a garden 40 by 50 meters wide is to be surrounded by a 5 meter wide fence how is it that the side are now 50 by 60?
*February 8, 2013*

**Biology**

What is one negative effect of indirect artificial selection?
*February 8, 2013*

**Math**

The measures of two consecutive angles of a parallelogram are in the ratio 5:4. What is the measure of an acute angle of the parallelogram?
*February 3, 2013*

**Trig**

True or false? tan x = tan(x-6pi)
*January 23, 2013*

**math**

Let x=3 Evaluate if possible: -2x^2
*January 18, 2013*

**math**

800,000 800000+00000+0000+000+00+0
*January 10, 2013*

**English**

Hi. :) What do the speakers of Sir Thomas Wyatt's "Whoso List to Hunt" and Edmund Spenser's "Sonnet 30" have in common? How are they different?
*January 7, 2013*

**Science**

N2O5 gives 2NO2 plus 0.5 O2. Rate for first order reaction. K = 5 * 10/10000 R = 0.30 mol/liter after 40 min. What is the [C] of N2O5 and NO2 ?
*December 28, 2012*

**physics**

If I travel at 30.0 m/s in a straight line for 83.0 seconds how far will I travel?
*December 20, 2012*

**ELA**

”ignore these ”
*December 18, 2012*

**ELA**

Great works are performed, not by strength, but by perseverance.” -Samuel Johnson Have you ever wanted to give up on something before you even started? That’s how Raja felt as he squinted up at the looming mountain crowned in clouds. Then he looked back at the group ...
*December 18, 2012*

**Math**

Which of the following is equal to log6(t + 1) − log6(t^2 − 1)? A. log6t − log6t2 B. –log6(t − 1) C. log6t D. log6(t + 1)
*December 14, 2012*

**Chemistry**

How many grams of carbon dioxide can be obtained from the action of 100.0 g of sulfuric acid on 100.0 g of calcium carbonate?? I need helpim stuck!
*December 13, 2012*

**science**

Two point charges are placed on the x-axis a follows: charge q1= +4.00nC is located at x=0.200m, and charge q2= +5.oonC is at x=-0.300m. What are the magnitude and direction of the total force exerted by these two charges on a negative point charge q3= -6.00nC that is placed ...
*December 13, 2012*

**math**

a square has an area of 71 between what two whole numbers is the length of the side?
*December 10, 2012*

**math**

a square has an are of 121 what is the length of on of its sides?
*December 10, 2012*

**Social Studies**

Thanks Ms. Sue
*December 7, 2012*

**Social Studies**

I'm in grade 12... I doubt a question that asks the Pharaoh, who enforces religion, about 'cats and dogs' being sacred animals would be very appropriate. But thanks
*December 7, 2012*

**Social Studies**

Mostly general, but if you want to get into specifics, Menkaure (ruled from 2532-2503 BCE)
*December 7, 2012*

**Social Studies**

What questions would you ask a Pharaoh?
*December 7, 2012*

**Chem**

Arrange the different types of forces in order of increasing energy. Covelant, Hydrogen bonding, Ion Dipole, Dipole-Dipole, Induced Dipole, and Ionic Bonding
*December 4, 2012*

**chemistry**

i figured out the problem after i read it again
*December 3, 2012*

**chemistry**

A chemist must dilute of M aqueous magnesium fluoride solution until the concentration falls to M . He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters
*December 3, 2012*

**accounting and taxes**

I recently closed my retail business which was very small... I chose not to sell my equipment as I can still use it at home as a hobby for myself. What do I put as furniture and equipment sold on my BOE form? Do I have to buy the equipment from the business and if so how do I ...
*December 3, 2012*

**accounting**

Ihave recently closed my retail business. While operating I only expensed my items purchased for resale when they were sold. So my inventory is personally owned. What do I declare as ex-tax inventory now that my business is closed... $0?
*December 3, 2012*

**Computers**

need to put this into a diagram... case 1: purchase actors: salesperson, creditcard-system Purchase info is recorded into the creditcard-system by the salesperson case 2: complete sale actors: salesperson, creditcard-system The creditcard-system authorizes the purchase and ...
*December 2, 2012*

**physics**

Ball A, moving with an initial speed of 3 m/s, has a head-on collision with another ball B at rest, which is twice as massive as A . What are the final velocities of A and B if the collision is elastic?
*December 2, 2012*

**Math**

Simplify: (n+4)! / (n+3)! =?
*November 30, 2012*

**earth space**

What man made or natural features can interfere with the weather radar?
*November 28, 2012*

**PHYSICS**

COULD YOU FURTHER EXPLAIN HOW MANY BTU ARE REQUIRED TO RAISE THE TEMP OF500 GALLONS OF WATER FROM 70 DEGRESS TO 160 DEGREES FAHRENHIET
*November 25, 2012*

**physics**

coull you explain in detail - how many BTU,S ARE REQUIRED TO RAISE THE TEMPERATURE OF 500 GALLONS OF WATER FRO 70 DEGREES TO 160 DEGREES FARAHIENT. THANKS
*November 25, 2012*

**Chemistry**

7.47*10^3
*November 22, 2012*

**Chemistry**

Face Centered Cubic
*November 22, 2012*

**math**

what is the volume in cubic feet if you have a cylindrical object whic is 8' in diameter and is 16' feet long.? could you please show in detail how to figure this out? thank you
*November 17, 2012*

**algebra**

the length of a rectangle is 2 less than twice the width. the perimeter is 50. what is the length
*November 15, 2012*

**algebra**

the length of a rectangle is 2 less than twice the width. the perimeter is 50. what is the length
*November 15, 2012*

**Math**

Im trying to help my daughter with some math homework and Im stuck can you help me please this is the problem Jeremy has been home sick with the flu for the last 7 days. While absent from school, he got 31 get well cards from friends. there were 5 more cards from girls than ...
*November 15, 2012*

**algebra**

use the remainder theorem to find the remainder when P(x)=x^4-9x^3-5x^2-3x+4 is divided by x+3
*November 12, 2012*

**algebra**

write a polynomial in factored form x^3-3x^2-10x
*November 12, 2012*

**engineering**

how many btu's does it take to raise one pound of water at 32 degrees f to the boiling point at 14.7 psia and then to steam?
*November 11, 2012*

**math **

how many btu"s does it taketo raise onepound of water at 32 f to the boiling point at 14.7psia and then to staem.?
*November 11, 2012*

**Chem**

Potassium ferricyanide has an extinction coefficient of 1020 1/M*cm at 420 nm. The absorbance of a sample of unknown concentration at 420 nm is 0.4268. If the path length is 10 mm, determine the concentration of the sample
*November 9, 2012*

**math**

1.A red die and a blue die are tossed. What is the probability that the red die shows a 5 and the blue die shows an even number?
*November 3, 2012*

**Psychology**

Which statement best illustrates the idea that people adjust their behavior according to the gender schema theory? Choose one answer. a. Agnes tells her son that it is wrong to put makeup on his face and that boys don't wear dresses and skirts. b. Bart sees two doors in ...
*November 1, 2012*

**physics**

A uniform rod of mass M = 0.245kg and length L = 0.49m stands vertically on a horizontal table. It is released from rest to fall. (a) Calculate the angular speed of the rod, the vertical acceleration of the moving end of the rod, and the normal force exerted by the table on ...
*October 30, 2012*

**math**

how to solve this equation by inserting the brackets to make it a true statement -20+4x2+7-35 = -19
*October 29, 2012*

**math**

I have to insert brackets so that this equation is a true statement. I was able to solve the other 3 and could not get this one. Please help. Thanks -20 + 4 x 2 + 7 - 35 = -19
*October 29, 2012*

**algebra**

The table shows a meteorologists predicted temperatiures for an April day in Washington D.C. Use quadratic regression to find a quadratic model for this data. Use the 24 hour clock to represent times after noon). time predicted temperature(F) 8a.m. 50.68 10a.m. 62.24 12p.m. 69...
*October 25, 2012*

**math**

a rectangle is made of 9 tiles and has 3 tiles in each row. how many different number sentences can you write for this rectangle?
*October 24, 2012*

**Intermidiate algebra**

a woman ivests in two bank accounts, one with a 3% percent interest and the other paying 9% simple interest per year.She puts twice as much in the lower account. Her annual interest is 7110. How much did she invest in each account?
*October 19, 2012*

**Help please!! History**

its B
*October 16, 2012*

**history**

becouse it was still slaves after the rev happened
*October 16, 2012*

**history**

i dont get it then
*October 16, 2012*

**history**

After the Revolution, the practice of a.enslaving African Americans was b.eliminated in the North. [c].restricted in the North and the South. d.encouraged in the North. abolished in the South
*October 16, 2012*

**english**

Which of the following phrases best defines rhythm? Repeated sounds across lines of poetry a poem's cadence, pace, or ongoing momentum A collection of lines in a poem The regular of irregular rhyme scheme in a poem
*October 16, 2012*

**NMR Organic Chemistry multiple choice**

Why do we only see four peaks in the 1H NMR when we have five CH2 groups and 2 OH groups? Answer a. There should be more peaks, but they peaks are overlapping in the spectrum. b. Heptanedioic acid is a symmetrical molecule. c. Heptanedioic acid is a chiral molecule. d. ...
*October 12, 2012*

**organic chemistry II lab NMR**

Why do we only see four peaks in the 1H NMR when we have five CH2 groups and 2 OH groups? Answer a. There should be more peaks, but they peaks are overlapping in the spectrum. b. Heptanedioic acid is a symmetrical molecule. c. Heptanedioic acid is a chiral molecule. d. ...
*October 12, 2012*

**physics**

since its vector math you add the two vectors if they are in the same direction and subtract if they are pointing in opposite directions.
*October 12, 2012*

**Math**

The area of a rectangle is 20 square inches. The length of the rectangle is 1 inch longer than the width. What are the length and width of the rectangle?
*October 10, 2012*

**math**

allof it
*October 6, 2012*

**math **

I still do not understand
*October 6, 2012*

**math**

a pipe is 2" outside diameter and it as 3/16" walls. What isthe inside diameter. could you explain in detail . Thanks
*October 6, 2012*

**math**

The ratio of games jsy won to the number of games he lost is 5:2 he won 20 games. how many games did jay lose? show oe expain how you got your answer.
*October 2, 2012*

**math**

Please give me an algebraic expression for this problem jasmine has three times as many chores as her younger brother does
*September 25, 2012*

**math**

Lillian bought 16 yards of ribbon at the craft store she bought 2/3 of red how many yards of red she bought
*September 19, 2012*

**Physics**

Is basketball a streamlined object? What about a baseball? What object will not be considered streamlined
*September 17, 2012*

**algebra**

is this a relation? 1 3 2 6 13 15 14 4 the picture connects (1,6)(2,4)(13,15)(14,3) would the answer be no?
*September 17, 2012*

**algebra**

Please help the graph of g(x) is f(x) translated to the left 8 units and up 2 units what is the function rule for g(x) given f(x)=x^2. Can someone explain this to me. The I have a graph that has the top corner shaded the point is on 1 going off the side and the other line is ...
*September 17, 2012*